Zeno Crater

Zeno crater - August 11, 2014
Zeno crater – August 11, 2014
Zeno crater imagined- oil painting
Zeno crater imagined – oil painting

I hope,have to correct my previous ASOD posted that sketched on 11,11,2011 [ The Chevallier crater ] as to [The Zeno crater] ….. in the begining month of this year I found this name in Wiki and now most probably this split rimed crater,s name is maybe “Zeno” . The LRO photo shows a 5 km diameter criminal impactor crater vividly laid on the demolished and streamed down rim-wall that I think must be made of reratively soft weak meterial or even I think the small impactor crater was not ” the a criminal ” for this dramaticaly split rim of Zeno.

This 60km diameter crater is located near the Moon,s limb upper Mare Crisium and looked always long slender elliptical shape. For the first time I saw it accidentally with my 8″ dob on excelent seeing night on 10.25, 1999. Second time,with my 8″ refractor on 11.11,2011 , and now I have 10-12 night observations for this interesting crater.

The bottom in my sketch , a inserted 8″ dob,s old sketch shows a small convex hill between split rims of maybe over 2-4km height and that was sketched also as a more impactor crater like in my other 8″ og observations at more favorable librations but even yet where I did not certain whether it was the impactor crater or a massif hill ,barely visible.

The 16″ dob sketch shows the Zeno with it,s environs well, When starting 13″ og observing after 16″ dob , the shadow of the strong jet-stream flow over 20km upper atmosphere passed through on the lunar disc from north pole to south pole at a velocity per in every 0.1 second speed in the eyepices view for 15-20 minutes and strangely eyepiece seeing was ok . Still the interior environs between splited rims were not seen sharply but outer black sharp shadows were well seen, so, shadow [A] consistently 1 hour viewed on the other hand shadow [B] was not viewed for 40 minutes and unexpectedly suddenly appeared as a 2km long, 200m wide jet black shadow in the x420 84 * bino- eyepieces view . This [A] and [B] consist the two legs of the rushing out blackbird shape black shadow that I observed in other nights 1.5years ago.

Turn my eyes to the 500-600km long west lunar limb of Mare Orientale environs for a brief rest, I could see some 10-15 single mountains and 5-6 twin mountains which looked almost similarly but with less details than that I posted here 6,21, 2014. , untill soon after dark clouds stopped the night,s observation.

In recent several lunar observing night, I thought about why there exist no atmosphere molecules on the Moon,… It,s because of weak gravity, .. then from where and when the gravity begins or generates ?

Myself final answer yet…. it generated from in the body of the every a quark or a lepton as a form of “graviton particles” . Need more study.


Object; Zeno crater

Observe/ Sketch for 1.5 hours; AUG,11, 2014,

16″ dob, x130,x260, uwa14 #4000, 2x bal

13″ refractor, x 420, mostly uwa 8.8s #4000, binoviewer

tak abbe 6, 9mms, nagler 7mms

8″ dob (10,25,1999), x240, x480 , nagler4.8, 2x bal

Lunation ; all 16 -16.5 day

Location ; Backyard home in South Korea

A local made white paper [33 x25 cm] with pencils , black ink, and a old 1999 sketch was inserted

My oil painting 61x73cm imagened before I saw LRO photo of Zeno

Light vs Dark – the Ink Spot and a lovely open cluster

The Ink Spot, B86 & NGC 6570
The Ink Spot, B86 & NGC 6570

Hi all,

This was the first sketch I completed at Astrofest in Queensland, Australia. I’ve been wanting to sketch this beautiful dark nebula ever since I first laid eye on it some three years ago. This dark nebula, B86, goes by the popular name of “The Ink Spot”. It sits smack bang in the centre of the densest star cloud in the whole sky, the Cloud of Sagittarius. And what sets it off even more is B86 has a gorgeous bright open cluster right next to it, NGC 6570. Both objects are more-or-less the same size as each other, even though both are not very large themselves. But it is the juxtaposition of these two very different objects against the blaze of the Milky Way that makes this pair a spectacular pairing.

Dark nebulae are clouds of dust and gas that are drifting through the Milky Way galaxy. Many of these conglomerations of dust and gas do end up being formed into stars and planets, but most just end up forming the fabric of the galaxy. In fact, the stars that we see actually only form a small percentage of the actual mass of galaxies. By far the greatest amount of a galaxy’s mass comes from this very dust and gas. The Ink Spot is a small patch of cloud. It is a very opaque nebula too. Dark nebulae are categorised according to their opacity, or how dark they are. The scale of opacity goes from 1 (very tenuous) through to 6 (very opaque). While the opacity of The Ink Spot may be a 5, it is because that it sits in the Cloud of Sagittarius that makes is a striking object.

The little open cluster NGC 6520 really works very well in setting off B86. Open clusters are groupings of stars that are all related to each other having been formed out of the same parent cloud of gas and dust. Evidence for this is seen in the spectra of the stars displaying the same chemical make up. The brothers and sisters of our own Sun have been identified this way, with the same chemical signature as our Sun having been identified in several close by stars even though the Sun’s ‘siblings’ have long drifted off away from each other. Open clusters are loose groupings, so even though they formed from the same source, their gravitational connection to each other is not strong enough to keep the group together for too long.

For me, this tiny patch of sky is one of my most favourite. Tiny and oh so precious. Brilliant, dark, stark, ghostly. All in one. Gorgeous.

Alexander Massey.

Object: The Ink Spot, B86 & NGC 6570
Telescope: 17.5″ push-pull Karee dob
Gear: 13mm LVW, 154X
Location: Linville, Queensland, Australia
Date: 24th July, 2014
Media: Soft pastel, charcoal and white ink on A4 size black paper.
Duration: approx. 3hrs

NGC 6520 and Barnard 86

NGC 6520 and Barnard 86
NGC 6520 and Barnard 86

Object Name: NGC 6520 and Barnard 86.
RA: 18h 03m 25.1s; Dec: -27° 53′ 28″
Magnitude: 7.6
NGC 6520 size: 6′
Distance: 6,000 light-years approx.
Constellation: Sagittarius.
Type: Open Cluster and Dark Nebula.
Description NGC 6520: Cl, pS, Ri, lV, st 9 … 13
Location: Bonilla. Cuenca. SPAIN
Date: July 24, 2014.
Time: 00:10 UT.
Material used: pastel pencils and white ink on black paper. Inverted image with Photoshop.
Celestron Telescope S/C 8″ Mount Cgt-5
Eyepiece: LV-M 22mm; Magnification: 92x.
Condition: 21.39 SQM. Temperature: 16º. Humidity 29%. Calm wind.

Spring’s Trio

Spring's Trio, "The Leo Triplet", galaxies M65, M66 and NGC 3628
Spring’s Trio, “The Leo Triplet”, galaxies M65, M66 and NGC 3628

It is spring’s trio.

The dark lane in the 3628 is really fantastic!

Before this sketch, I always confused M65 and M66.
But now I can classify 65 & 66.
Sketch is magical tool in the visual astronomy. 🙂

Object Name : Leo triple
Object Type : Galaxies
Location : S. Korea
Date : Nov. 11, 2013
Equipment : Discovery 15″ Dob
Media : Black paper, Jelly pen, Pastel pencil

A little fat Owl

"A Little Fat Owl", Lunar craters Fra Mauro, Parry and Bonpland - May 8, 2014
“A Little Fat Owl”, Lunar craters Fra Mauro, Parry and Bonpland – May 8, 2014

It had been a while since I did a lunar sketch. May saw me complete my first lunar sketch in many months. I made several attempts, but on those occasions, seeing was so poor the Moon was ‘boiling’ using just 100X magnification. Disappointing and frustrating. Eventually things did change in my favour…

As always, unless I have a specific target in mind, I just let my eye wonder along the terminator to see what pricks my interest. And, as there are several repeated alphanumeric apparitions on the Moon, I’ve found a second avian one! Some time ago I spotted an owl formed around the crater Mercator. Last night I found a second Owl, this time around the flooded craters Fra Mauro (the fat body), Parry (the right eye), and Bonpland (the left eye).Cute little fella I think is formed here J.

As it turns out, Fra Mauro is just to the south of the Apollo 14 landing site – south is to the top of the page, so the Apollo 14 site lies just below where the Owl’s feet would be.

Object: “Little Fat Owl”, craters Fra Mauro, Parry and Bonpland
Scope: C8, 8” SCT
Gear: 5mm Baader Hyperion, 400X
Date: 8th May, 2014
Location: Sydney, Australia
Media: White & grey soft pastel, charcoal and white ink on A5 size black paper
Duration: approx. 2hrs.

The Challenge of Finding the Owl’s Eyes

Messier 97 - The Owl Nebula, a planetary nebula
Messier 97 – The Owl Nebula, a planetary nebula

The observing of the owl’s eye is very difficult for me.

I just have a glimsed by sketch…

Object Name : M97 (Owl Nebula)
Object Type : Planetary Nebula
Location : S. Korea
Date : Mar. 30, 2013
Equipment : Discovery 15″ Dob
Media : Black paper, Jelly pen, Pastel pencil

The Biggest Face in the Universe!

Messier 84/86 Group of Galaxies
Messier 84/86 Group of Galaxies

Seeing many objects in an eyepiece view is my favorite things!

So, I love galaxy groups.

M84/86 group like face shape.

He has two eyes, one little nose, smiling mouth, only one eyebrow, and ear…

It is biggest face in the universe!

Object Name : M84/86 group
Object Type : Galaxies
Location : S. Korea
Date : May. 30, 2014
Equipment : Discovery 15″ Dob
Media : Black paper, Jelly pen, Pastel pencil

Nightwid 無雲

Quasar 3C 273

Quasar 3C 273
Quasar 3C 273

Hi Asod! This is my sketch of a very unusual object! A quasar, in the constellation of Virgo. It was very difficult to find it (mv=13), but I was able to read my star map. I observed the Quasar with my Dobson 10″ from San Severino Lucano (ITALY), a very dark sky.
I realized the sketch with a black ink pen on white paper, then inverted.
I hope you enjoy it!

Sinus Iridum

Sinus Iridum - June 8, 2014
Sinus Iridum – June 8, 2014

Find attached a sketch of Sinus Iridum with craters Bianchini, Laplace A, Laplace D and Heraclides E done yesterday evening.

Object Name Sinus Iridum, The Moon
Object Type Impact basin
Location Dusseldorf region, Germany
Date June 8th, 2014, 2120-2205 CEST
Media white pastel pen, charcoal pen on black cardbox paper
Telescope: Celestron Nexstar 127/1500 SLT
Eyepiece: TS HR Planetary 7mm
Best Regards,


Twilight Globular

Messier 5 Globular Cluster
Messier 5 Globular Cluster

Object Name: Messier 5
Object Type: Globular cluster
Location: Deventer, The Netherlands
Date: June 2, 2014
Media: White pastel and white gel pen on black paper

This time of year the sun never drops low enough under the horizon for
true astronomical darkness. Only after midnight we get a few hours of
relatively dark skies, but a faint blue glow always remains visible
above the northern horizon. However, bright objects can still be very
impressive in the eyepiece. Messier 5 is a fine example: a very bright
ball of stars, loosely scattered amidst a few dozen foreground stars.
When I made this sketch, the sun was only 12 degrees below the horizon.
What is very striking visually is the off-center core of M5. The
brightest part seems to be slightly to the west of the cluster.

I made the sketch using a white gel pen for the stars and a white soft
pastel pencil for the glow of unresolved stars. It was the first time I
made a positive deepsky sketch, normally I use graphite on white paper.
The image is the original field sketch.

Clear skies!

Roel Weijenberg