Lunar crater Maurolycus

Lunar crater Maurolycus and environs - December 28, 2014
Lunar crater Maurolycus and environs – December 28, 2014

Hi,

here we go with a chalk/charcoal sketch of lunar crater Maurolycus.
Object Name: Maurolycus
Object Type: Lunar Crater
Location: Germany, Dusseldorf area
Date: 2014-12-28, 1650-1720 CET
Media: chalk pencil and charcoal pencil on black sketching cardbox
Telescope: Martini 10” f/5 truss tube dobsonian
Eyepiece: TS HR Planetary 7mm

Clear Skies!

Achim


Taoism on an Anomalous Lunar Phase Night

Lunar mountains as they appear along the limb - December 6, 2014
Lunar mountains as they appear along the limb – December 6, 2014
Anomalous December 6, 2014 libration illustrated
Anomalous December 6, 2014 libration illustrated

The night on December 6 , 3;00-4;00 am was great to observe the 15day moon.

After study some pdf Taurus-Littrow Valley ,NASA, in web, l looked through the eyepieces and soon l found the position of the 15day lunar shade terminator was wrong and strangely for, l remember the lunar phases on 15day moon were always [East-West]ward apparent, this time it was anomalously [North-South] ward.

l think it was not because by libration definitely but by some unknown force pushed the moon downward against the flat normal orbital plane of moon-earth system. l was so tired that night that l had only one hour observation not enough time to check how the limb shade was changing even l could’nt sketch reasonably well the old China or Korean Taoism like landscape and this magnificent similarly scenery was stretched along the limb almost 350km long and of course my limitation was only 70km span , yes-, l have also experienced the Grand Canyon like scenery once with the 8′ og in Dec 2013, twice was recently with the 13″ og 1.5months ago. Now is a Taoism scene.

—————-

320mm homemade refractor x420

2014, 12. 6th

Transparecy,seeing together superb ,8/10;.8/10

White paper, graphite pencils, black acrilic

Shot with a Olympus d-camera

K.S.Min S. Korea


Rabbit on the Moon

The Rabbit on the Moon, a naked eye sketch showing a commonly recognized pattern - November 5, 2014
The Rabbit on the Moon, a naked eye sketch showing a commonly recognized pattern – November 5, 2014

Rabbit On The Moon
Lunar Observing Pattern
Pilanesberg Game Reserve South Africa
5th November
Jet Black Canford Paper with White Pastel Pencil. Used a smartphone to take a picture and crop.
Sketched on holiday in South Africa – The ‘Rabbit on the Moon’ pattern really jumps out at you from Southern Skies and creates a whole new observing experience if you are used to the Northern hemisphere.


Lunar Crater Clavius

Lunar crater Clavius - November 1, 2014
Lunar crater Clavius – November 1, 2014

My sketch of lunar crater Clavius together with smaller craters Porter and Rutherfurd at the top of the drawing. Clavius measures 225km in diameter and is located near the southern pole of the Moon. It is named after Christophorus Clavius, a 16th century German mathematician and astronomer.

Regards,

Alexei Pace
Astronomical Society of Malta


Mooncrater – Wilhelm

Lunar crater Wilhelm - October 3, 2014
Lunar crater Wilhelm – October 3, 2014

Hello,

last week (October, 3rd, 2014) I met my astro-friend Ralf Mündlein in his nice observatory. In his 5m dome with 16″ ACF and 8″ Apo we started our observation. First object in this night was the moon. The air was excellent and we were very happy to have such great impressions on our cosmical neightbour.

A chose the nice crater Wilhelm with some bigger impacts around the craterwall. A fine mountain chain at the bottom of the crater took my attention. So I made a drawing of this crater with the 8″ Apochromat. It was hard work, because there were so many details. I needed nearly one hour to catch the whole crater.

CS Uwe

Object: Moon
Object Name: Crater Wilhelm
Telescope: 200mm Apo
Eyepiece: 6mm Ethos
Magnification: about 300x
Location: Lindelbach near Würzburg, Germany


Craters Ptolemaeus, Alphonsus and Arzachel

Lunar craters Ptolemaeus, Alphonsus and Arzachel -October 1, 2014
Lunar craters Ptolemaeus, Alphonsus and Arzachel -October 1, 2014

Hi,

Here’s my lunar sketch of today.
Object Name: Ptolemaeus, Alphonsus and Arzachel
Object Type Lunar Craters
Location: Home terrace, Dusseldorf region, Germany
Date: Oct 1st, 2014, 1930-2000 CEST
Media: charcoal and white pastel on black cardbox
Clear skies!

Achim


Crater Clavius Out and Over the Terminator

Lunar crater Clavius - September 3, 2014
Lunar crater Clavius – September 3, 2014

Among the large craters of the lunar southern highlands, a nearly 4 billion year old crater stood out over the terminator on this evening just after local sunset here in the central USA. This crater is the 230 km. diameter impactor known by the name Clavius. Clavius is blanketed with a sizable number of craters and numerous craterlets . The north-northeastern rim of Clavius has a large crater resting upon it and most of its rim is just catching the light of sunrise. This 52 km. diameter crater is Porter. Much of the central floor of crater Clavius remains in darkness except for Clavius D (21 km.) and to its right in the sketch Clavius C (13 km.). Note that crater D is casting a nice shadow across the high central floor which is just beginning to light up in the lunar morning sun.

Sketching:

For this sketch I used: Black Canson sketching paper, 8”x10”, white and black Conte’ pastel pencils and blending stumps.
Telescope: 10 inch f/ 5.7 Dobsonian and 6 mm eyepiece 241x
Date: 09-03-2014 01:05-02:00 UT
Temperature: 26°C (79°F)
Partly cloudy, breezy
Seeing: Antoniadi III
Co longitude: 14.9°
Lunation: 8.47 days
Illumination: 56.7 %

Frank McCabe


Another Look Near to the Altai Scarp at Higher Sun

The lunar craters Riccius, Rabbi Levi, Zagut and Lindenau near the Altai Scarp - July 4, 2014
The lunar craters Riccius, Rabbi Levi, Zagut and Lindenau near the Altai Scarp – July 4, 2014
Riccius, Rabbi Levi, Zagut and Lindenau - Labeled
Riccius, Rabbi Levi, Zagut and Lindenau – Labeled

Two hundred or so kilometers to the southwest of the Altai Scarp you will find a mix of large and small highland craters that may catch your eye as they did mine. Many have written of the “boring” look-a-like craters of this region but good lighting can make a big difference in appeal here. Ancient Riccius crater (71 km.) is a worn, an almost obliterated remnant, covered and surrounded by crater from 10-15 km. of various ages. Adjacent to Riccius is crater Rabbi Levi (81 km.) with an interesting short chain of craters across its floor. The next crater Zagut (84 km.) is the largest of those in the sketch with Zagut A (11 km.) near the center of the floor and Zagut E (35 km.) pushed through the eastern wall of Zagut. Next to Zagut is crater Lindenau (53 km.) which is younger than the other large crater here as evidenced by the sharper rim and what looks like a part of a central peak remaining.
A fine summer evening of observing and sketching after a long spell of poor weather.
Sketching and Equipment:

For this sketch, I used black Strathmore 400 Artagain paper 8” x 12”, white and
black Conte’ pastel pencils and blending stumps.
Telescope: 10 inch f/5.7 Dobsonian and 6 mm eyepiece (241x) riding on an equatorial platform
Date: 07-04-2014, 01:15-02:50 UT
Temperature: 16° C (60° F)
Clear, calm
Seeing: Average – Antoniadi III
Transparency: 4.5/5
Colongitude: 349.0 °
Lunation: 6.7 days
Illumination: 36 %

Frank McCabe


Maurolycus at Terminator

Lunar craters Maurolycus and Barocius on the terminator - June 6, 2014
Lunar craters Maurolycus and Barocius on the terminator – June 6, 2014

Object Name : Maurolycus

Object Type: Lunar Crater
Location Torrevieja Spain
Date Friday 6th June
Media (graphite pencil 2H/6B/2B , charcoal (Hard/Dark), white paper,
Sketched whilst on holiday with good conditions and viewed through small Travelscope 70 mm refractor and 9mm eyepiece.

Regards

Kevin


Anaximander environs

Anaximander environs - December 14, 2013
Anaximander environs – December 14, 2013

Tonight, DEC, 14th, 2013. I could have a brief time for an observation/sketching on the nothern moon limb ,

the environs of the crater [ Carpenter, Anaximander, J . Herschel ] .

I have focused 8″ refractor at the curiously connected shadow casted by the splitted rim- walls of each of Anaximander,s and of J, Herschel, s .

Although, seeing was bad , I observed/ sketched this for 40-50 minutes.

—————-

8″ f12 a chinise made achromatic lens , x340

location; Backyard home in South. Korea

white paper [40 x30 cm] , graphite pencils , black ink

Date of observe/ sketch ; 12, 14, 2013


Lunar North Polar Region

Lunar North Pole Region-04-09-2014
Lunar North Pole Region-04-09-2014
Lunar North Pole Region-04-09-2014
Lunar North Pole Region-04-09-2014

Lunar North Polar Region

For several nights this week the lunar North Pole has been tilted more towards earth due to favorable lunar libration in latitude. It has been a good opportunity to view craters such as Whipple, Peary, Byrd and others. I had a clear night with average seeing so I took advantage of the opportunity to sketch the illuminated region near the pole. At my location the Moon was at more than 60 degrees above the horizon which also helped with the time needed to complete a sketch.

Sketching and Equipment:

For this sketch, I used black Strathmore 400 Artagain paper 9” x 12”, white and

black Conte’ pastel pencils and blending stumps.

Telescope: 13.1 inch f/6 Dobsonian and 6 mm eyepiece (333x) riding on an equatorial platform

Date: 04-09-2014, 01:00-02:35 UT

Temperature: 3° C (38° F)

Clear, calm

Seeing: Average – Antoniadi III

Transparency 4/5

Colongitude 16.2 °

Lunation 9 days

Illumination 63.9 %

Frank McCabe


Ten Minute Tycho

Object name: Lunar crater Tycho and rays

Object Type: Lunar crater, rays

Location: York, UK

Date: 18th March 2011

Time: 20.30-20.40 UT

Media: graphite pencil, white paper

Instrument: Skywatcher Skyliner 152mm f8 Dobsonian, 25mm e.p.

As I took in the beauty of the full moon at perigee, I noticed a small black object zip across the face of the moon. I thought I’d probably seen a satellite, but, a minute or two later I saw another one, and then another one, and then another, and they were definitely birds. They were all travelling in the same direction: North. After waiting about half an hour and seeing about twenty of them, and trying to take in the jizz of the form, the best I could do was narrow them down to swallows and martins. Do they migrate at night? Well, if so, this was a unique way to see my first hirundines of the year.

Seeing was very wobbly, preventing me from using high powers on the scope, so I eased back into low power and sketched the crater Tycho and its rays, which you can also see with the naked eye as they splat half way across the face of the full moon. I like sketching fast; it forces me to find the key features first. Tycho itself is not huge as lunar craters go, but it’s visible because it’s young and its rays have not yet eroded away. It’s estimated to be about 100 million years old which means that some dinosaurs and mammals probably saw it hit; it must have been spectacular.

The crater is named after Tycho Brahe, one of my heros. His accurate measurements of the stars and planets led to the later discovery, by Kepler, that the planets move in elliptical orbits around the sun, which in turn is the basis of universal gravitation. It’s not an exaggeration to say that Tycho paved the way for our modern understanding of the universe. And he has a rather beautiful crater named after him too.

One of the things that I spotted for the first time was that there are fewer bright rays pointing west (top in the picture), suggesting that the impactor that formed Tycho came in from that direction.


Clavius out of the shadows

Clavius
Lunar crater
Hartlepool, UK
14th March 2011
Drawn digitally using pencils, chalk and blenders.

I drew this at the eyepiece of my 10 inch Newtonian a with a magnification of x375 using regular pencils then redrew it indoors on the computer digitally.
Apart from the important stuff like the positioning and shape of the main craters the next thing I think is the tone of the surrounding area, trying to match the lights and darks but of course trying to simplify what you see.


Beautiful Highland

The data of the drawing: Nonius K – Aliacensis – Werner crater
10.02.2011.

Telescope: 3″ F/11 Newton and 7,5 mm Super Plossl eyepiece

Observing Location: Zakany – Hungary, 46° 15′ N 16° 57’E elev.: 129m
This digital drawing preparated GIMP 2.6 programs.

Thank you for it!

Clear Sky !

Tamas Bognar

http://tamasasztro.tk

skype : bognartamas
msn : bognart@gmail.com


Progressive Moon

Object Name: Moon
Object Type: moon
Location: São Bernardo do Campo – SP – Brazil
Date: (5 nights – 2010)
Media: 0.5mm mechanical pencil on white paper
Instrument: binoculars Celestron UpClose 10×50 Wide Angle (7º)

Additional information:
The millions of lights from a huge metropolis (more than 20 million people) added to the heavy pollution do affect the sky observation. However, I found out an astonishing Moon through my binoculars, and whenever the sky was clear, I sketched it. I’ve done it from my apartment, fourth floor, through the window. The purpose was to register the position of the terminator, and how some features (specially the seas and Tyco crater) change their appearance according to the incidence of the sunlight. In this sketch we can also notice that there’s no “dark side of the moon”, in fact there’s a “hidden side of the moon”.
I can barely wait for my next vacations in order to go to Itajobi, on countryside, to keep observing under dark skies.
Clear skies to all.

Rodrigo Pasiani Costa


Waning Moon High in the East

Waning Moon High in the East

On the night of September 27-28, 2010, I witnessed the rising gibbous moon paired with the Pleiades near the northeastern horizon. By placing my thumb over the moon the seven sisters were clearly visible further to the north. Together they began their march across the sky after 9pm local time.
After I finished some indoor chores I returned to the telescope and set up to do some sketching.
Initially I considered sketching both of them together but soon changed my mind to go after just the moon. I spend about two hours recording as much as I could see before fatigue began forcing me to erase with greater frequency. This is my lunar sketching result.

Sketching:

For this sketch I used black sketching paper 9″ x 12″, white and black Conte’ pastel pencils, blending stumps, a gum eraser and brush. Brightness was slightly increased (+1) using the scanner

Scope 4.25″ f/5 Newtonian scope at 45x

Date: 9-28-2010, 1:00-3:00 local time
Temperature: 14° C (58° F)
clear, calm
Seeing: Antoniadi III
Colongitude: 151.6 °
Lunation: 20 days
Illumination: 78.3% Waning Gibbous

Frank McCabe


A Triplet of Craters in the Southern Highlands

Crater Cuvier

Craters Cuvier, Heraclitus, and Licetus
Sketch and Details by Frank McCabe

It has been a long time since I have attempted to use charcoal pencils on white sketching paper but I found an unused pair among my drawing supplies. They turned out to be less messy than ones I have used in the past. I liked the way they worked on the medium weight drawing paper I had on hand.

Two years ago in March of 2006 the European Space Agency (ESA) spacecraft Smart-1 imaged the crater Cuvier to test the high resolution camera (AMIE) with great success. I noted this crater was well placed along the terminator last evening for sketching. No sooner than having seen it, I decided it would be my target for sketching. Cuvier a 77km walled-plain crater is eastern most in the sketch. The crater has a nearly flat, lava flooded floor and at 3.5 billion years old is still younger than its neighbor to the southwest Heraclitus. Elongated crater Heraclitus is from the Pre-Imbrian period and dates back more than 4 billion years. A central mountain ridge runs down the center of this crater from northeast to southwest. This ridge line was illuminated in the morning sunlight. Within the shadow of this crater 25% of the dark southwest floor is occupied by Heraclitus D. Finally the large 74 km. crater to the northwest is Pre-nectarian crater Licetus. It like Cuvier infringes upon Heraclitus.

It was a beautiful night to observe and sketch the moon.

Sketching:

For this sketch I used: White CPP sketching paper, 9”x 12”, Number 4B charcoal pencils, a blending stump, gum eraser and an eraser shield. After scanning, Brightness was slightly decreased (-2) and contrast increased (+2) using Microsoft Office Picture Manager.

Telescope: 10 inch f/ 5.7 Dobsonian and 6mm eyepiece 241x
Date: 6-11-2008 1:05 – 2:05 UT
Temperature: 24° C (76° F)
clear, calm
Seeing: Antoniadi III
Co-longitude: 358.9°
Lunation: 7.29 days
Illumination: 55.1 %
Phase: 84.1°
Observing Location: +41°37′ +87° 47′

Frank McCabe


Youth and Beauty

Tycho crater

 

By Frank McCabe   The grip of winter is loosening just a little with breaks in the nearly constant
cloud cover and temperatures occasionally going above the freezing point. I am
looking forward to nights of observing that don’t involve shivering. This night
although below freezing was wind free and temperature tolerable. The promise of
spring is nearly here.

  Tycho crater in the southern highlands was the target of my sketch this evening.
At 85 kilometers in diameter this large, young, complex crater exhibits fantastic
terraced walls and slopes with a large flat floor partly strewn with melt debris.
A pair of central peaks casting shadows to the southwest could clearly be seen. A
distance of 4.8 kilometers separates the floor from the crater rim and the central
peak stands tall at 2.4 kilometers. Wall slumping down to the west floor puts it a
little higher than the eastern floor. Rays extend outward from Tycho in most
directions. Some of these bright rays reach out 2000 kilometers across the lunar
surface. Tycho at 108 million years old is the youngest large crater visible on
the earth facing side of the moon. In the 1960’s this crater was briefly
considered as a landing target for an Apollo moon mission. Surveyor 7 spacecraft
soft landed successfully north of the crater in January of 1968. Ray distribution
from Tycho which is best seen at or near full moon, illustrates that the impactor
of mountain size came in at a shallow angle to the surface from the west and
ejected lunar highland crust and blocks mostly in non-western directions.

  Land vertebrate life on earth was thriving quite nicely at this time since this
was 43 million years before the Chicxulub cratering event here on earth which
ended the good times for the “terrible lizards”.

  Apollo 17 astronauts collected among the rocks and soil returned to earth samples
of the Tycho ray debris at the Taurus-Littrow valley including calcium rich
anorthosites that aided in dating the Tycho crater event.
  
  
  Sketching:

For this sketch I used: black Strathmore 400 Artagain paper, 8”x 11”, white and
black Conte’pastel pencils and a blending stump. Brightness was slightly decreased
(-7) and contrast increased (+5) after scanning using Microsoft Office Picture
Manager.

Telescope: 10 inch f/5.7 Dobsonian and 6mm eyepiece 241x
Date: 3-17-2008 0:45 – 1:55 UT
Temperature: -0.8°C (31°F)
high cloud cover and high humidity, calm
Seeing:   Antoniadi III
Co longitude: 28.1°
Lunation: 9.3 days
Illumination: 77.2 %
  Phase:   57.0°
Observing Location: +41°37′ +87° 47′
 
Frank McCabe


Clearing the Confusion

Rosenberger and Vlacq

Rosenberger and Vlacq near the Terminator
By Frank McCabe

  
  This region of the moon is often called the confusing southeastern lunar highlands
for all the large and medium sized look-alike craters. This appearance continues
to the lunar far side as can be see in lunar orbiter photos. But looking again the
picture really changes dramatically at low sun.  The two large craters I have
chosen for this sketch are both ancient (pre-Nectarian) and pre-date the early
basin formation on the moon. Rosenberger crater (96 km.) is the largest of the
pair to the left (east) in the drawing. This four billion year old crater has a
rim worn down to the level of the surrounding highlands by numerous crater impacts
and inner wall subsidence that has obliterated most of the wall terracing. It is
2.6 kilometers from the highest rim point to the mostly flat crater floor which in
the low sun was showing off its low central peak. A crater of 14 km. was about to
be consumed by shadow at the time of this sketch. This floor crater is Rosenberger
S. The other large crater to the southwest of Rosenberger is Vlacq, a crater of 89
kilometers and from all appearances perhaps the youngest of the pair. The twin
peaked central mountains and terraced walls give this crater a younger look. It
also appears from the bulging of the wall shared with its larger neighbor that the
body that struck the moon forming Vlacq came in second.               
  The observing and sketching was enhanced by steady seeing intervals that lasted
several minutes at a time.
  
  Sketching:

For this sketch I used: black Strathmore 400 Artagain paper, 9”x 10”, white and
black Conte’pastel pencils and a blending stump. Brightness was slightly decreased
after scanning.

Telescope: 10 inch f/5.7 Dobsonian and 6mm eyepiece 241x
Date: 11-28-2007 5:30-7:00 UT
Temperature: -3°C (26°F)
partly cloudy, breezy
Seeing: back and forth between Antoniadi II and III
Co longitude: 135.2°
Lunation: 18.5 days
Illumination: 80.3 %


Ancient Crater Messala

 

Crater Messala and environs

Messala and environs
By Frank McCabe

Clear windless sky during the day and at night with temperatures just above the
freezing point of water, these are ideal weather conditions in winter for the
Midwestern USA. The waning gibbous moon was bright and high at midnight following
Mars across the celestial hemisphere. Through my 10” telescope I zeroed in on the
region north of Mare Crisium. I then turned on the drive platform and began
sketching the region of the terminator centered on ancient pre-Nectarian age
crater Messala (126 km.). This walled plain crater in the waning sunlight was
showing off its rubble covered irregular floor and battered walls. Although the
seeing was not the best, which stopped me from sketching Mars, this region of the
lunar northwest was putting on a good show. The floor in addition to being lava
covered, irregular and dark, appears slightly convex or domed. To the southwest
large much younger crater Geminus ( 88 km.) with its central peak just beyond the
shadowed floor was showing
 its greater depth and terraced walls. Bernoulli (50 km.) closer to the terminator
is filled with shadow too. Touching Messala to the north is Schumacher (63 km.)
with its dark smooth floor and beyond the apron of this crater northward is ancient
Lacus Temporis (Lake of Time). To the southwest of Lacus Temporis are the ancient
craters Shuckburgh (41 km.) and then Hooke (37 km.).
  
  Sketching:

For this sketch I used: black Strathmore 400 Artagain paper, 12”x 9”, white and
black Conte’pastel pencils and a blending stump. Brightness was slightly decreased
after scanning.

Telescope: 10 inch f/5.7 Dobsonian and 9mm eyepiece 161x
Date: 12-26-2007 5:30-7:00 UT
Temperature: 0°C (32°F)
 clear, calm
Seeing: Antoniadi III
Co longitude: 113.7°
Lunation: 16.6 days
Illumination: 93.3 %


Floor Fractured Crater: Furnerius

Furnerius 

  Just two days past full moon, floor fractured crater Furnerius (125 km.) was well
placed relative to the sunset terminator to show off its interesting features.
This crater is one of the four large walled plain craters along the 60° E.
longitude line. Furnerius is the southern most of the four and placed not far from
the southeastern lunar limb. The other three which were visible at the eyepiece
from south to north but not sketched here are Petavius, Vendelinus and Langrenus.
Crater Furnerius is a pre-Nectarian crater and thus very ancient. It predates the
formation of the Nectaris basin. Basin debris and secondary impacts are scattered
across the floor and rim of this old battered crater. On the north side of the
crater floor a rille of 50 kilometers called Rima Furnerius can be seen. It
crosses the floor to the southeast and climbs the inner crater rim. Darker
smoother lava flooded areas can be seen on parts of the crater floor between the
rubble strewn regions created
 by the basin impact. Inner wall terraces and central peaks are completely absent
from this crater but large crater Furnerius B(22 km.) is clearly visible on the
floor. On the glacis of this crater to the north a bright young 12 km. crater
called Fernerius A can be viewed in line with Rima Furnerius. To the northwest a 75
km. Copernican era crater Stevinus, stands impressively with its sharp rim, central
mountain peak and low hills. South of Furnerius a smaller yet equally ancient
crater Fraunhofer (57 km.) was showing a dark flat half shadowed floor. On the
northwestern rim of this crater Fraunhofer V (24 km.) could be identified by a
small sliver of light striking its inner southeast rim.
  
  Sketching:
  
  For this sketch I used: black Strathmore 400 Artagain paper, 9”x12”, white and
black Conte’pastel pencils and a blending stump. Brightness was slightly decreased
after scanning.
  
  Telescope: 10 inch f/ 5.7 Dobsonian and 6mm eyepiece 241x
  Date: 10-28-2007 6:05-7:45 UT
  Temperature: 0.7°C (33°F)
  Clear, calm
  Seeing:  Antoniadi III- IV mostly poor
  Co longitude: 115.4°
  Lunation:  17 days
  Illumination:  93.7 %
  
  Frank McCabe


Classic Southern Moonscape

Clavius and Blancanus

Craters Clavius and Blancanus
  
  Among the large craters of the lunar southern highlands, two nearly 4 billions old
impacts stood out on this morning before my  local sunrise. These craters are 225
km.diameter Clavius and smaller 109 km. Blancanus. Clavius is not only old and
large but is blanketed with numerous craters and craterlets. At the center of this
large crater are the reduced remains of once regal central peaks. The atmosphere
was steady enough to pick out cratelets less than 1.5 km in diameter during
periods of excellent seeing. Crater Clavius is famous for its semicircular crater
sequence of decreasing size beginning with 49 km. Rutherfurd at the inner
southeastern wall and continuing with 27km. D, 20 km. C, 12 km N, 11.3 km J and
7.5 km JA. The north-northeastern rim of Clavius has a large crater resting it.
This 52 km. diameter crater is Porter. A broad crater ray was clearly visible
crossing the floor of Clavius just to the west of Porter and Clavius C. Much of
the floor of crater Clavius
 remains smooth which implies the flow of melted rock in the past. Some geologists
speculate it is from the ejecta of the Orientale basin. Some small secondary crater
chains point back in that direction.
  
  Sketching:
  For this sketch I used: black Strathmore 400 Artagain paper, 9”x12”,  white and
  black Conte’
  pastel pencils and a blending stump. Brightness was slightly decreased after
  scanning.
  
  Telescope: 10 inch f/ 5.7 Dobsonian and 6mm eyepiece 241x
  Date: 9-2-2007 8:15-9:25 UT
  Temperature: 17°C (62°F)
  Clear, calm
  Seeing:  Antoniadi II-III
  Co longitude: 53.9°
  Lunation:  20.39 days
  Illumination:  70 %
  
  Frank McCabe


Three craters from the top of Alto Rey

Three craters

Hi Friends,

I would like to share my sketches with all of you, I have lots of them in
my notebook and when I discovered the ASOD site recently I was surprised and happy
to find it. Its wonderful, a really good idea.

I made this sketch of three moon craters of the southern region with graphite
pencil on white paper, three craters are hand made without processing after,
just painted looking directly through the ocular and with red light. They
took me almost an hour aproximately.

The equipment used: Meade 8″ SC. Date:
3 Jun 2006;  Moon age:  8 days.

The night were very good conditions, I was on top of a mountain called Alto
Rey in Guadalajara, Spain.

All my drawings are almost first drafts in the place of observation, the
best I try to do them again and then more good and after change to negative
to get them more real. I havent still practice with photoshop, but I will
try it.

All my drafts are kept tenderly because they are the result of the night,
all filled with annotations and details by hand,

I hope you enjoy!
Thanks a lot.

Leonor Ana


Between the ears of the rabbit

Craters Gutenberg and Goclenius 

Craters Gutenberg and Goclenius
  
    In the mid 1600’s Johannes Hevelius named this highland region east of the Sea
of Fertility Colchis (Land of the Golden Fleece) within a few years Giovanni
Riccioli named the same region Terra Manna. Two hundred years later both of
these names disappeared as the craters of the region continued to be named.
This lunar surface being erased by the shadow of the terminator early this morning
is between the ears of “The Rabbit in the Moon”. The largest crater with an
illuminated floor is battered Gutenberg, a 4 billion year old 75 km diameter
formation with a large breaching impact crater (Gutenberg E) on its northeastern
rim. East of the crater the widest and deepest part of Rimae Goclenius was glimpsed
as the seeing periodically improved. Domes in this area could not be seen with
certainty due to poor seeing. Southeast of Gutenberg crater Goclenius a 56 km
Nectarian age crater appears round with a floor in complete darkness. Also close to
the terminator are craters Magelhaens through Colombo.

Sketching:
For this sketch I used: black Strathmore 400 Artagain paper, white and black Conte’
pastel pencils and a blending stump.
Telesccope:10 inch f/ 5.7 Dobsonian and 9 mm eyepiece (161x)
Date: 4-6-2007 7:08-8:20 UT
Temperature: -1.6°C (29°F)
Partly cloudy, breezy
Seeing: Antoniadi IV
Colongitude 133.2 °
Lunation 18.2 days
Illumination 89 %

Frank McCabe


Pacific places amidst “magnificent desolation”

Stofler and environs

Distinctive crater Stofler resides in the midst of the dense and chaotic crater field of the southern hemisphere of the Moon. One clear but very chilly evening in January 2007, the challenge of trying to capture the view was more than I could resist – this is my attempt. The sketch was carried out using white and black Conte’ pencils and chalk pastels on black ‘Canford’ paper. I began by marking out the main crater shapes using white Conte’ pencil, then I used a small chunk of white chalk pastel, broadside, to lay down the mare regions, blending this with a fingertip and a small cloth. More highlights were added (white Conte’ pencil), and a putty eraser used to define some of the features (and shadow extent) by negative drawing where I removed areas of pastel previously laid down. More detail was added with white Conte’ pencil as I went along, but there really was far too much to capture and I realized that I would have to quit while I was ahead and finish my outside drawing time before the view changed substantially. Once back inside I tidied up the sketch, removing the inevitable unwanted pastel smudges with a putty eraser, and re-defining some of the darkened inner crater edges with black Conte’ pencil, then using blending stumps (with touches of both white and black chalk pastel) to make final tiny adjustments. The sketch has been inverted and rotated in paint shop pro to give the standard orientation.

Sally Russell
 

Date: 25 January 2007

Time: 21.10-22.00 UT

Equipment: 105mm AstroPhysics APO/bino-viewer (mag x60)

Lunation: 7.3 days, 48.7% illumination

Sketch size: 6″ x 8″

The southern highlands of the Moon are almost completely dominated by craters in the 20 to 100 km size range, randomly scattered about the region. One way to determine relative ages of craters is to note which overlay or superpose over other craters or features, and the crater that obliterates or partially modifies another crater is usually younger. It is this principle that is the foundation of a stratigraphic approach to understanding lunar geological history. In the lunar highlands there is no shortage of overlapping or partially modified craters, and as Sally points out this region is about as densely chaotic as any on the Moon. A careful look at her beautiful sketch also reveals one of the great unsolved mysteries of the Moon. Many craters have smooth flat floors and the adjacent surface topography between these craters is also relatively smooth. The big question is: what is responsible for these smooth areas? Do the smooth floors and intercrater terrane reflect episodes of highland volcanism?  Or perhaps these areas are covered with thick layers of ejecta that settled out across the surface as a result of this large scale stochastical gardening.