I was delighted this morning to find this dark and large filament at the north-eastern limb of our Sun. It had the appearance of a large serpent with foot like projections anchoring it to the solar surface and then visible curving around the limb. The filament is magnetic curtains of plasma hovering over the Sun’s surface, this an especially large and detailed one. I read on the Spaceweather site that the length of the filament would measure the distance from the Earth to the Moon. That’s one big serpent!
Solar Filament & Prominence
h-alpha 60mm Lunt 35x
4/26/15 0800-0845 HST
Black Strathmore Artagain Paper
White Conte’ Crayon & charcoal pencils, black & white
Photoscape Software to colorize, Photoshop Software to reduce size
I went out to sketch the AR 2339 in h-alpha but when I saw this massive Hedgerow type prominence on the limb it had to be done.
PST 40 halpha scope ,8mm eyepiece / 50X
Pastels and Conte on black paper. 13:33 UT May 13th 2015
Bray, Co Wicklow, Ireland
Eyes turned to the sky early this morning on Maui for the shortest total lunar eclipse of the 21st Century. This is due to the Moon passing through the edge of the umbra instead of the center where the circular diameter of the Earths shadow would be widest. The maximum time for totality (when the Moon passes into the umbra) can be up to 1 hour 40 minutes so the umbral portion lasting only a little more than 4 minutes is a short one. The time of partial eclipse this morning made for a beautiful transition across the lunar surface of darkness and then totality. As I always see a rabbit in the Moon I thought maybe the Easter Rabbit Moon has a lot to do getting all those eggs hidden and no time for a long performance, though it was still a great show!
This is a 7×50 binocular view sketch during totality. The Rabbit in the Moon appears to be flying a kite asterism which seemed fitting for the spring occasion of the season.
Cindy (Thia) L. Krach
Eclipse time 12:16-3:45HAST
Umbral Phase 1:58-2:03 HAST
Black Strathmore Artagain paper
Conte Crayon & x colored pencils, white charcoal pencil, brush technique to apply colors
Contrast adjustment in Photoscape
For those that observe and sketch the Moon, trying to pick targets just before, just at and just after first quarter can be much fun because there are so many choices in good relief. On this occasion I chose two large walled plain craters near the terminator. Albategnius (129 km.) the younger of the two ancient craters and further from the terminator it was displaying its central peak (1.5km. tall) and large crater Klein (44 km.) on its rim. Crater Halley (36 km.) to the northeast is notably a kilometer deeper than Klein and although further from the terminator has a completely shadowed floor with that greater depth.
The other large crater Ptolemaeus (154km.) was on the terminator at the beginning of my sketch.
With the sun so low the rim shadows were long and were creating a special effect. In combination with the rim shadow of little crater Ammonius (8.5 km.) I could see old Nesse. Jim Adlhoch describes the floor shadow as looking like the head and neck of the Loch Ness monster- see Lunar Photo of the Day September 4, 2014.
Crater Ptolemaeus has a floor covered with many shallow bowl shaped craters, ghosts buried under lava. These ghost craters can be seen at low sun but the central peak is completely absent. To the north is crater Herschel (41 km.) with a shadowed floor.
For this sketch I used: Black Canson sketching paper, 10”x10”, white and black Conte’ pastel pencils and blending stumps.
Telescope: 13.1 inch f/ 6 Dobsonian and 9 mm eyepiece 222x
Date: 01-28-2015 00:05-02:00 UT
Temperature: -4°C (25°F)
Seeing: Antoniadi II
Co longitude: 0.7°
Lunation: 7.20 days
Illumination: 56.1 %
Living in Eastbourne, I am lucky enough to have the famous cliffs at the end of the South Downs close by; the panoramic views they afford are ideal for watching sunrises and sunsets, which are frequently rendered even more beautiful by dramatic coastal clouds. On Sunday 18th January I was driving back from a visit to the beach further east at Normans Bay, when I noticed a break opening up in the blanket of cloud to the west. Instead of heading home I made the short detour up to Beachy Head, where I was treated to this wonderfully picturesque celestial scene.
Best regards and clear skies, Oli
18/01/15 18:45 UT
Soft pastels on Rembrandt pastel paper with acrylic paint for Venus
The Suns surface has been very interesting to follow the past few days. A fascinating solar filament stretching across the surface is one of the longest recorded, over 700,000 km long. Solar filaments are made up of unstable plasma held above the solar surface by the Sun’s magnetic field.
I was able to observe it for 2 days in a row and marvelled over its sheer size, looking like a tear in the Suns surface. On this day there was also an interesting filament like region near the west limb that was wide and appeared dimensional in light and dark values. The “wishbone” prominence to the north appeared to be from beyond where the limb was visible, the top portion reaching toward the observer.
H-alpha Full Solar Disk
60mm Lunt 14mm 35x
February 8, 2015 1920-1940 UT
Seeing Wilson 4/5
Cream colored sketch paper, grey & white Conte’ Crayon, 2B & 6B pencils and #2 pencil. Contrast adjusted in Photoscape.
Venus and Mercury were putting on a great show over several days at my location.
You didn’t need optical aid to enjoy the view of the sky to the southwest. Distant tropospheric clouds are likely responsible for the separate pink/violet pillars clearly visible after sunset for a brief time.
Venus was visible before sunset but Mercury required a darker sky to shine through for naked eye visibility.
Location: Mesa, Arizona
Date and Time: January 6, 2015, 18:15 pm local time
Temperature: 19° C (67° F)
Venus visual magnitude -3.9; distance from Earth 1.6 au
Mercury visual magnitude -0.8; distance from Earth 1.2 au
Assorted color pencils and pastel crayons, blue construction paper cut to size to fit my clipboard,
blending stumps and facial tissue paper for blending, white Pearl eraser.
One thing all astronomers chase is ideal atmospheric conditions. An apparently clear night can present poor transparency or poor seeing due to thermal energy high up in the atmosphere. But every now and then, ideal or even very close to ideal conditions do present themselves, and it gives us the finest view of the heavens.
Such conditions presented themselves to me on the night of January 18.
My first view of Thor’s Helmet, NGC 2359, was four years ago during the Ice In Space Astro Camp. My view of it seemed to me to be a fine one. So much so it inspired me to sketch it straight away! Four years later, presented with a night of exceptional transparency, I revisited Thor’s Helmet as it was right on zenith for me.
WOW! What an image! This night Thor’s Helmet had nebulosity extending in four different directions, not just the two from my first view. So much more structure was apparent, and the nebulosity extended so much further, and so many more stars were visible too.
I’ve also included an image of the sketch I did of Thor’s Helmet in 2011 for comparison. It is this way that the full impact of the differences in conditions between the two nights can be appreciated.
I hope you enjoy this sketch.
Object: Thor’s Helmet, NGC 2359
Scope: 17.5” push-pull Karee dob
Gear: 30mm 82° Explore Scientific, 91X, OIII filter
Date: 18th January, 2015
Location: Katoomba Airfield, Australia
Media: White soft pastel, charcoal and white ink on A4 size black paper
Duration: approx. 1hr.
I think what I like best about solar observing is you never know what you will find going on! This large prominence at the eastern limb appeared extraordinary in its detailed and lacey appearance. Seeing was very good and at higher magnification a network of bright areas appeared, much like a picture of a neuron cell with branching filaments extending in all directions. Tilting Sun Graphics are used to denote prominence location.
h-alpha 60mm Lunt
0945-1020 HST (1945-2020 UT)
Black Canson paper, white & black charcoal pencil, watercolor pencil & Conte’ Crayon
Tilting Sun Graphics
Cindy (Thia ) L. Krach
Haleakala Amateur Astronomers
Webmaster’s note: ASOD is experiencing problems with sketch submissions where the file size exceeds the limit of the ASOD WordPress programs capability to process the file. Please be aware that when this occurs, although we do have some graphic editing programs, large files will result in two or three iterations of resizing, that may still result in a sketch that cannot be downloaded to the ASOD template. Due to the fact that I have a day job, I often put these pages together late at night, and being very tired I have difficulty trying to bring these posts together. Please be aware that we would prefer receiving files that are no bigger than 800 pixels wide. We will always resize your sketch image to 650 pixels to fit on all the the standard protocols for tablets and smart phones. Please make sure the image file size (the number of bytes the image file) contains does not exceed 500 Kilobytes. This will guarantee that your sketch is published in it’s entirety, and on time. If there are any questions, please feel free to contact us here at ASOD, we will be happy to help with any problems that are troubling you with image size issues.
During the early part of the current lunation I was observing and sketching in Mesa, Arizona and caught the thin crescent Moon in the southwestern sky just after sunset. Venus was also visible much closer to the horizon but not close enough to the Moon to be included. Earthshine improved and brightened as the hour passed.
For this sketch I used dark blue sketching paper (8.5” x 11”), white, yellow and brown pastel pencils, blending stumps, white Pearl eraser.
Telescope 6”f/7.2 Dobsonian telescope, 28mm eyepiece 39x
Date and Time: 12-23-2014; 18:15 – 19:10 local time
Seeing: Antoniadi III
Transparency: clear 4/5
Temperature: 18 °C (65°F)
Lunation: 1.74 days
find attached a charcoal and pastel sketch of Aristarchus, Herodotus and the famous Vallis Schröteri. I hope you like it.
Object Name: Vallis Schröteri, Aristarchus, Herodotus
Object Type: Lunar Valley and Crater
Location: Germany, Dusseldorf area
Date: 2015-01-02, 1800-1845 CET
Media: chalk pastel pencil and charcoal pencil on black sketching cardbox
Telescope: Martini 10” f/5 Dobsonian
Eyepiece: Skywatcher HR Planetary 5mm
The constellation Carina alone makes it worthwhile travelling to Southern Africa – and the Carina Nebula NGC 3372 is the heart of it – especially for visual observing. NGC 3372 is studded with bright and even dark nebulae. The most impressive to me is a combination of “light & shadow” – the Keyhole Nebula (the famous “eta carina” is the bright star at lower left).
Object Name: Keyhole Nebula (in NGC 3372)
Object type: Galactic Nebula
Location: Hakos Guestfarm, Namib Naukluft, Namibia
Date: June 1st & 2nd, 2014 (about 3 hours total of sketching)
Media: Pastel and graphite pencils
Optics: 24” Dobson f 4.0, 300x
Field is about 12 x 15’ wide, north is up. To concentrate on object (and not on dimensions) I used a pattern of stars printed from Guide 9 as a template. Pinpoint stars added by image processing software (to replace printed and sketched stars)
On this night I watched the sunset terminator creep slowly toward ring-plain crater Posidonius; in addition I sketched the crater and other features on the floor of Mare Serenitatis. Posidonius (96 km.) is an old upper Imbrian era impact remnant. Its age is underlined by the way shadows penetrate the rim at numerous points betraying impact damage there. The highest part of the rim is on the terminator side of this crater. Sunlight was still reaching Posidonius A and other high points on ridges including one on the inner ring. Beyond this crater to the west and south the great serpentine ridge could be seen in best light. This ridge is made up of dorsa Smirnov and dorsa Lister.
For this sketch I used: black Strathmore 400 Artagain paper 9″x 12″, white and black Conte’ pastel pencils and a blending stump. After scanning, Brightness was decreased just slightly using my scanner.
Telescope: 10 inch f/ 5.7 Dobsonian and 6 mm eyepiece 241x
Date: 08-07-2012, 06:30 – 07:40 UT
Temperature: 29°C (85° F) clear, calm
Seeing: Antoniadi III
Colongitude 147.9 °
Lunation 19 days
Illumination: 73.4 %
Clouds made it not easy to observe the enormous sunspot group AR 2192 in the Low Countries. I had only one good day to observe and sketch this marvel at ease. Thanks to good seeing conditions I could see – despite my small telescope – an impressive amount of detail. I hope the group will survive his voyage on the far side of the sun and give us another beautiful display.
Jef De Wit
Location: Biggekerke, Netherlands (51°29’ N 3°31’ E)
Date and time: 27 October 2014, around 9.30 UT
Equipment: 8 cm refractor, Baader Herschel wedge, Solar Continuum filter
Eyepiece: 13mm Nagler T6 (79x)
Medium: white, gray and black pastel pencils, a Pierre Noire pencil and a light gray soft pastel on white printing paper, scanned, mirror reversed, contrast adjustments with Paint Shop Pro
After 4 years of “try & error” with a faint NGC 7293 in the horizon haze of central Europe I finally finished “my Helix”, using the 24” Dobson at Hakos Guestfarm in Namibia. No haze, but 70 degrees high in the sky, the Helix was an impressive beacon, details were easy to report. I wasn’t prepared to see the halo, my template was too small to sketch it, so I had to use a second sheet. Seeing was moderate, I didn’t see the faint background galaxy 2MASX, but… nevertheless I enjoyed it!
Object Name: NGC 7293, the Helix Nebula
Object type: Planetary Nebula
Location: Hakos Guestfarm, Namib Naukluft, Namibia
Date: June 4th, 2014 (about 2 hours total of sketching)
Media: Pastel and graphite pencils
Optics: 24” Dobson f 4.0
Field is about 30’ wide, east is up. To concentrate on object (and not on dimensions) I used a pattern of stars printed from Guide 9 as a template. Pinpoint stars added by image processing software (to replace printed and sketched stars)
While observing our ever changing Sun today I was struck by a grouping of prominences on the western limb. All of them of high intensity and curving towards the same direction. They made me think of the story of Goldilocks & The 3 Bears!
Cindy (Thia) Krach
Black Strathmore Paper
Pastel and colored pencils
60mm Lunt h-Alpha
Webmaster’s note: Cindy has been instrumental in organizing a new Sketching Observing Award Program for the Astronomical League. Check it out here.
I was enjoying the Sun this morning and trying to decide how to represent the most prominent features. Sketching the Sun has just not gotten me the feeling that I can really represent it as well as I would like to as far as colorizing goes. I like using black paper but it isn’t smooth enough whereas plain white paper is. But when I have tried to add color later, it just loses what I see in the scope.
So today I tried a little something different. I like how some inverted blue colors really become the right colors for the Sun. So I put some oil pastel colors to paper & inverted to see what I could use. The nice thing about the oil pastel is I can scratch off small little lines to try to get the details of the solar surface. I had to think in negative to produce the sketch in order to preserve black, white and the different tones of red. This is my 1st attempt using this technique and I am not entirely happy with it but it is a bit of an experiment.
60mm Lunt 88x
Oil Pastel, white permanent pen, white paper, Lyra polycolor pencils, a needle to scratch off the oil pastels to produce dark lines
Inverted with Photoscape software
On Sunday evening I was getting a wonderful view of the lunar terminator near the western limb just a half day before full Moon. The favorable longitudinal libration of -04° 40’ was creating an opportunity to see craters along the terminator that are often poorly placed for viewing.
With storms on the way from the southwest this was a good evening to attempt a sketch. The calm before the arrival of storms often leaves the seeing fair to good as was the case on this night. Craters such as Vasco da Gama (99 km.), Bohr (73 km.), Dalton (63 km.), Balboa (71 km.) and part of Einstein (175 km.) were all seen. Craters Cardanus (51 km.) and Krafft (53 km.) and the crater chain (catena) between them were in bright sunlight. The views all along the terminator were magnificent.
For this sketch I used: black Strathmore 400 Artagain paper (9” x 12”), white and black Conte’
pastel pencils. In addition a small artist’s brush and powdered Conte’ white crayon was used for blending. Contrast was slightly increased (+2) using a scanner to better match the original.
Telescope: 13.1 inch f/ 5.9 Dobsonian and 6 mm eyepiece 327 X
Date: 02-25-2013, 04:00-06:30 UT
Temperature: 0.0° C (32° F)
Partly cloudy, calm
Seeing: Antoniadi III
Colongitude 86.9 °
Lunation 14.87 days
Illumination 99.5 %
Made this sketch of crater Lambert, Mons La Hire and Dorsum Zirkel and surrounding areas this evening, using my 505mm mirror and Watec video camera on its least sensitive setting. The view on the monitor was delightful and one I shared with optical designer and engineer Mr Es Reid of Cambridge, all very civilized and enjoyable.
The sketch was made on black A5 220gm art paper using Conte hard pastels and acrylic paint for bright highlights and deep shadow.
I’ve been doing a study on lunar phases and this is my latest sketch. This is a photo of it from last night after wrapping up my observing session. No adjustments have been made to the sketch other than cropping the lower blank portion of the paper.
My phase sketches used to take close to two hours to complete at the eyepiece. I’ve been building up my endurance to 3-4 hours for a single sketch to include more detail. Obviously, the terminator is drawn first to “freeze” the time stamp on the phase. Then I work my way across the disk at a more leisurely pace, moving my observing chair and stool gradually as the session progresses.
I used a 102mm f/9.8 refractor on an LXD75 mount, 20mm eyepiece setting on my Hyperion zoom, and a 13% T Moon filter to help with contrast. The media is black Strathmore Artagain paper (60 lb., 160 g/m2), white charcoal pencil, black charcoal pencil, white Conte’ crayon, white Conte’ pastel pencil, black Conte’ color pencil,and a blending stump for the maria. I used a circular 6-inch protractor to outline the lunar disk.
Total eyepiece/sketch time is just over four hours on this one.
An unusually clear winter day here in Chicagoland with high clouds racing towards us in front of our next round of snow. As twilight began the Moon remained at a good altitude for sketching as long as I worked quickly. During this sketch earthshine became exceptional but high thin clouds began to erase the fine view and heavy clouds ended the sketch before I finished.
For this sketch I used black sketching paper (12” x 14”), white and black Conte’ pastel pencils, blending stumps, white Pearl eraser.
Telescope 4.25”f/5 Dobsonian riding on an equatorial platform, 21mm wide field eyepiece 26x
Date and Time: 02-03-2014; 17:30 – 18:25 local time
Seeing: mostly Antoniadi III
Transparency: clear to overcast
Temperature: -6.7 °C (20°F)
Lunation: 3.85 days
Favorable longitudinal libration
Three nights in a row clear sky, it doesn’t happen a lot in cloudy Belgium. I guess I was just lucky. Nice to see the changing shadows and libration. I hope you like it too.
Jef De Wit
Object: Philolaus (+ Anaximenes, Anaxagoras, Mouchez and Poncelet)
Object type: lunar crater
Location: Hove, Belgium (51°09’ N 4°28’ E)
Date and time: 11-13 January 2014
Equipment: 8 cm refractor (WO Zenithstar 80 FD)
Eyepiece: 3,5 mm Nagler T6 (158x)
Medium: white, gray and black pastel pencils on black paper, scanned, contrast
adjustments with Paint Shop Pro, compilation and text with Paint
At last a chance has come over these holidays to do some observing. Top of my list is Wolfgang’s Webb Society object of the season , Bi-polar reflection nebula in Orion, NGC 2163, not even listed in the Keppler & Sanner bible!
In the last hour I picked the nebula up readily enough by star hoping to the target but had to keep the exposure time of the video camera shorter than usual due to the residual breeze. That said I’m pleased with the result, it is an interesting object and a first observation for me. Appearing as a bow tie N-S in position there are a couple of dark notches visible and a short dust lane in the lower lobe in my sketch. I hope other member get sketches and images too.
I finally got to go bush with my latest scope acquisition, and my smallest scope, a 4” achro refractor. I was spoilt for choice for potential targets, but I settled on one target I’ve sketched four times previously, Eta Carina. The previous sketches of Eta Carina were done with an 8” (once) and my 17.5” (twice) and once with my binos from my home. But this time, I had the opportunity to chase the full extent of the visible nebulosity of this celestial giant. With the single eyepiece I took on this outing, this little refractor gives me a whopping TFOV of 5°! This would be the perfect weapon and dark sky combination to tackle this target.
Oh my goodness! How much detail is visible! At first glance the nebulosity is nice and compact. As the sketch developed, and I slowly examined the scene, the nebulosity kept on reaching further and further out. Add to this the mottling of the background Milky Way star field that surrounds Eta Carina. I also spotted a couple of faint open clusters in the field of view.
The sketch doesn’t show the full extent of the TFOV – the sheet of paper wasn’t big enough! I was spent after this too.
I hope you find this sketch to your liking.
Object: Eta Carina, NGC 3372
Scope: 4” f/5 refractor
Gear: 30mm Explore Scientific 82°, 17X, plus OIII filter
Date: 3rd January 2014
Location: Blue Mountains, NSW, Australia
Media: White soft pastel, charcoal and white ink on A4 size black paper.
Object Name Sun
Object Type Sunspot 1575 and crown
Location Néoules Provence France
Date 22 sept. 2012 – 13h TU
Media (graphite pencil for the spot, red pastel for the crown, two different white papers, Paint.net)
I made two separate sketches, one in H alpha via a classic PST for the crown, the second one through a 1000/102 refractor with solar continuum filter for the spot.
I used several eyepeaces.
The compilation was done with the freeware software : Paint.Net
Conditions were perfect, the sun was hot here… !
Object Name : night sky
Object Type : Planets, stars and moon
Location : Montréal, Canada
Date: October 29th 2013
Media: pastel, white and pink gel pens on black paper
Unable to sleep I decided to get up early on October 29th. It was 5:00 in the morning and the air was crisp but the sight was absolutely gorgeous. I decided to get my pastels and try my best to represent the ambiance and colors of the scenery. Mars was at the left side of a crescent moon and Jupiter hanging high at the right hand side with Castor and Pollux (Gem)
2012 05 07, 1315 UT – 1500 UT.
NOAA 11476, 11474, 11475, 11471.
PCW Memorial Observatory, Texas – Erika Rix
Temp: 26.72°C, winds SE 4mph, partly cloudy to scattered.
Seeing: Wilson 4.5, Transparency: 4/6, 50x, Alt: 30.2, Az: 087.2.
Maxscope DS 60mm H-alpha, LXD75, Baader Planetarium Hyperion 8-24mm Mark III.
Sketches created at the eyepiece with black Strathmore Artagain paper, white Conte’ crayon and pencil, white Prang color pencil, Derwent charcoal pencil, black oil pencil.
I’ve really been enjoying the current set of active regions the past few days. It would be nice to sketch each individual active region as a close up view, but to do that would take several hours. As it was today, I struggled with a group of thick clouds for the first hour of my session. The sky was crystal clear when I set up and I chose to ignore the weather channel for my area stating that we could have thunderstorms at 8 a.m. Thankfully the storms never came…the clouds did. I was able to catch glimpses of the Sun in between the clouds and by 8:45 a.m., the sky was nearly unobstructed.
The first features added to the sketch after the prominences were plage from 1476 and 1471. Next came the sunspots themselves and filamentary structure. By 9:10 a.m. (1410 UT), very bright plage appeared just north of the sunspots in 1471. I haven’t been able to confirm yet if it was a solar flare, having expected possible flare activity in 1476 instead. But it lasted nearly an hour before it dulled somewhat. Near the end of my session, 1471’s plage brightened quite a bit to the eastern side of the major sunspot in that region as well as about five more degrees further east again.
1474 and 1475 paled in comparison to the two major active regions. There were nice filaments and thin plage that made them easy to find.
The large chain of filament reaching to the southern limb was still there, although thinner. Prominences scattered around the limb were insignificant.
This sketch is centered on the large walled plain crater Albategnius (135 km.). The well illuminated inner and outer rim margins appeared very rugged in contrast to the smooth floor interrupted by the off center mountain casting a large shadow. A sizable portion of the western wall was destroyed by crater Klein (45 km.). Klein also has a central peak which was overtaken by shadow during this observing session. Also visible in the sketch on the eastern side of Albategnius are craters Ritchey (25 km.), Hind (30 km.) and close by Halley (36 km.)
For this sketch I used: black Strathmore 400 Artagain paper, 8”x 12”, white and black Conte’pastel pencils, flat white paint, pink pearl eraser and blending stumps.
Telescope: 10 inch f/5.7 Dobsonian and 6mm eyepiece 241x
Date: 09-26-2013 00:30 – 02:00 UT
Temperature: 15°C (60°F)
Seeing: Antoniadi III
Co longitude: 165.3°
Lunation: 20.55 days
Illumination: 60.7 %
Object : M42 (West of Trapezium)
Object Type: Emission Nebula
Location: Kenton, OK (Okie-Tex Star Party)
Date: 10 October 2013, 0300 MDT
Media: Black paper, conte crayon, pencil and pen
Note: I liked the way the 17mm eyepiece framed this portion of the nebula. It looked, to me, like a wreath.
Plato and Archimedes lunar craters
29th August 2013, 01:15 – 03:15 UT. Temperature 13C; seeing Antoniadi III
Meade LX90 8″ Schmidt-Cassegrain telescope with 26mm super Plossl eyepiece, 77x
White and black pastel on Daler Rowney Canford black paper
I was lucky enough that a second consecutive clear night allowed me to study these craters again; this time they were on the terminator and the whole scene looked very dramatic, enhanced by the long deep shadows.
On the evening of September 16, 2013, I got the best view of the basin ring segment between young crater Zucchius (65 km.) and just the tip of large older crater Schiller (179 km.) The ring arc was more than a day beyond the terminator but perfectly illuminated to show its depth and smoothness.
Craters Weigel (36 km.) and Weigel B (37 km.) initially caught my eye as light was brightly glinting off the rims.
For an excellent image of this region see the LPOD for May 26, 2013 http://lpod.wikispaces.com/May+26%2C+2013
There were many fine crater showing nicely in this region at the time of the observation and sketch.
For this sketch I used: black Canson paper 9″x 10″, white and black Conte’
pastel pencils , and Conte’crayons, a blending stump, Pink and White Pearl erasers. Brightness was not altered but contrast was increased +3 using the scanner for this sketch
Telescope: 10 inch f/ 5.7 Dobsonian with 6mm (241x) eyepiece
Date: 09-17-2013, 02:00 – 03:45 UT
Temperature: 16°C (60°F)
Seeing: Antoniadi II
Co longitude 53.8°
Lunation 11.42 days