Posidonius and Chacornac Craters
Sketch and details by Manuel Ángel Pacheco
* Posidonius crater y Chacornac crater
* Lunar crater
* Fuente de Piedra, Málaga (Spain)
* 27/06/2009 (23h40m, local time)
Material used:
Pencil and paper with post-processing with Photoshop CS2
Instrument:
Celestron Telescope S / C 150mm f10 Nextstar and Celestron Omni Eyepiece 9mm (166x)
Atmospheric conditions:
Transparency good
Seeing: II (I: very bad – V: very good)
Crater Euclides and Montes Riphaeus
Sketch and details by Frank McCabe
In southern Oceanus Procellarum not far from mare Cognitum you can locate a bright little Copernican era crater that formed after the last of the dark lava had solidified. This little 12 kilometer crater wearing the bright ejecta blanket is Euclides. The bright ejecta makes it easy to pick out at high sun and with a little bit of shadow and high magnification the nearby Riphaeus mountains also show some fine relief. In the upper left of the sketch note the front range of these mountains which date back 4 billion years. These mountains are likely the remains of a very large crater rim that was not completely buried in the lava flooding. Other similar sized and smaller craters in the region also reveal some bright ejecta betraying their young ages. To learn more read the LPOD caption for May 24, 2006.
Sketching:
For this sketch I used: black Canson paper 10″x 12″, white and black Conte’
pastel pencils , and Conte’crayons, a blending stump, plastic and gum erasers. Brightness was decreased -2 and contrast increased +2 using the scanner for this sketch
Telescope: 10 inch f/ 5.7 Dobsonian with 6mm (241x) eyepiece
Date: 11-28-2009 4:15-5:40 UT
Temperature: 0°C (32°F)
Clear becoming partly cloudy, calm
Seeing: Antoniadi II -III
Co longitude 44°
Lunation 11.4 days
Illumination 80.7%
Frank McCabe
Lunar crater Schiller
Sketch and Details by Árpád Szent-Andrássy
Object Name: Schiller crater
Object Type: Lunar crater
Location: Hungary, Debrecen
Date: 29th November 2009
Medium: white paper, graphite pencil.
Instrument: 5” Maksutov
Hi
This is my first sketch that I would like to share with you on ASOD. I used my 127/1500 Maksutov scope with a start diagonal to observe the Moon from my balcony, and finished the sketch next morning. After scanning, I slightly adjusted contrast and brightness of the image with Gimp, and that was all.
Best regards: Árpád
Sunrise over Marius and the Marius Hills
Sketch and Details by Giorgio Bonacorsi
Hello sketcher,all o.k.?This night,the sky was cover by fog and clouds but ,at 10p.m.,the fog go out and the Moon was very hig over my head.I decide for the first time, to take my Dobson 10″ for the Moon and made my sketch with white pencill on black paper.
I see the Crater Marius go out from shadow and i decide to made that sketch.I used my 15mm eyepiece (83x).I stopped my sketch because the clouds coming quickly.
That sketch is dedicated at Frank McCabe and other sketchers who used this technics.
Ciao a tutti,artisti.
Giorgio Bonacorsi
Site:Pergola,Marchr Region,Center Italy
Date:28 November 2009
Time for made the sketch:From 10,50 to 11,30
Moon phase:Crescent(10,7 days)
Instrument:Dobson GSO 10″
Eyepiece:15mm
Magnification:83x
Seeing:Good,clouds and turbulence at the end.Sketch interrupted cause the clouds
Temperature:Cold,humidity.
Technics:White pastel on black paper Fabriano3.
The lunar crater Julius Caesar and environs
Sketch and Details by Dale Holt
The Weather in the UK has been very wet and windy over the past couple of weeks culminating in the devastating floods in western regions that have made the news over the past week.
On Monday evening just after dark I got a break in the cloud and the Moon shone through with Jupiter in a close embrace. From my observatory I was soon touring the terminator as I so love to do. I was looking for that mountain, ridge, rill, crater or flooded plain that just caught my eye above all else.
Tonight it was lava flooded 80km diameter crater Julius Caesar that did just that, with its low, irregular, and heavily worn wall, washed out completely and the southern end I liken it to a burst dam. It is located to the west of Mare Tranquillitatis, and directly southeast of the crater Manilius on the Mare Vaporum. To the east is the rounded 18km diameter impact crater Sosigenes.
The interior floor of Julius Caesar is relatively level, especially in the southwest half. The northern half of the interior has a lower darker appearance than the south, I hopefully have captured this effect in my sketch. Most likely the floor has been covered or modified by ejecta from the impact that created the Imbrium basin.
There are a number of crater remnants overlapping the rim along the south and northeast edges, the illumination at the time of drawing has allowed me to see and capture one or two of these. A low ridge crosses the floor across the northeast sections of the crater.
Further to the south of Caesar we see the striking graben or fault trough Rima Ariadaeus shown as a dark line in my sketch it runs for over 300km
Sketch was made on Black Daler Rowney Artist paper using a mix of Conte pastels, Water Colour and other artist pencils applied direct on with a blending stump.
Telescope used was a 150mm triplet F9 refractor
Dale Holt
Chippingdale Observatory
Hertfordshire, England
Lunar craters Mairan, Sharp, Harpalus and the Jura Mountains
Sketch and Details by Frank McCabe
The lunar feature known as the Jura Mountains includes the rim of the Sinus Iridium impact and is visible here in late day sunlight. The debris field can be seen extending westward to Mare Frigoris. All of Sinus Iridium is in shadow which gives this region an unfamiliar appearance. The impact that created the large mountainous debris field occurred during the Upper Imbrium period (3.8 billion years ago). Some of the mountains are a lofty 5 kilometers high. Superimposed on these mountains are two forty kilometer complex craters known as Mairan and Sharp; another similar sized crater can be seen on Mare Frigoris and is called Harpalus (39 km.). At high sun this crater shows a bright young crater ray system in addition to a fine glacis. There are 3 pillow-like features to the far left in the sketch at the edge of the Iridium ejecta. The two that are closest together are the famous large lunar domes known as Gruithuisen Gamma and Delta.
It is always worth while when not expecting a rigorous day ahead to get up a little earlier than usual to see what is going on in the sky before sunrise. This is especially true when the sky is clear and very transparent.
Sketching:
For this sketch I used: black Canson paper 9″x 12″, white and black Conte’
pastel pencils , and Conte’crayons, a blending stump, plastic and gum erasers. Brightness was decreased -2 using the scanner for this sketch
Telescope: 10 inch f/ 5.7 Dobsonian with 9mm (161x) eyepiece
Date: 11-12-2009 11:00-12:00 UT
Temperature: -3°C (27°F)
Clear to partly cloudy, calm
Seeing: Antoniadi III
Co longitude 212.7°
Lunation days 25.27
Illumination 20.1%
Frank McCabe
Lunar crater Manillus in the Sea of Vapors
Sketch and Details by Frank McCabe
There is a stand alone Eratosthenian crater (1-3 billion years old) on the northeastern shore of the Sea of Vapors known as Manilius. Manilius is 39 kilometers in diameter with a steep inner wall 3.1 kilometers above its floor. The crater rim and outer rampart are impressive in the eyepiece as is the illuminated inner talus slope and central mountain still capturing sunlight. As I was making this sketch at 241 power I knew this moonscape was know to have several small domes and when I finished I took a look at several of the larger ones under higher magnification. They are a little difficult to pick out from all the smaller bits of Imbrium ejecta piles. I didn’t concern myself with them during the sketch but Chuck Wood’s LPOD and Bruno Daversin’s image on April 12, 2006 show the ones close to the crater to the north and east. HYPERLINK “http://www.lpod.org/?m=20060412″ http://www.lpod.org/?m=20060412
This photo was taken during the waxing moon and I was viewing and sketching during the waning moon. Also since I was sketching with a Newtonian scope south is up in the sketch.
Sketching:
For this sketch I used: black Canson paper 9″x 12”, white and black Conte’
pastel pencils , and Conte’crayons, a blending stump, plastic eraser. Brightness was decreased -2 and contrast increased +2 using the scanner for this sketch
Telescope: 10 inch f/ 5.7 Dobsonian with 6mm (241x) eyepiece
Date: 11-8-2009 11:15-12:40 UT
Temperature: 9°C (49°F)
Clear becoming partly cloudy, calm
Seeing: Antoniadi II
Co longitude 167°
Lunation 21.5 days
Illumination 61%
Chicago, Illinois USA
Frank McCabe
Lunar crater Theophilus and environs
Sketch and Details by Tamas Bognar
Theophilus and his neighbourhood
Telescope: 3″ F/11 Newton and 7,5 mm Super Plossl eyepiece
Date: 24.09.2009
This digital drawing preparated GIMP Painter programs.
Observing Location: Zakany – Hungary, 46° 15′ N 16° 57’E elev.: 129m
Clear Sky !
Tamas Bognar
Rima Sirsalis
Sketch and Details by Peter Mayhew
Object Name: Rima Sirsalis
Object Type: Lunar Rille
Location: York, U.K.
Date: 31st October 2009
I used graphite pencil on white paper. My observing instrument was a
Skywatcher Skyliner 150mm f8 Dobsonian with a 10mm eyepiece and x2 Barlow.
Labeled sketch of Rima Sirsalis
Sketch and Details by Peter Mayhew
I have just endured twenty days of grey cloud without sight of the
stars: it was almost unbearable. This came with unseasonal mild weather
for October for the UK. On 31st, there was a brief gap in the clouds at
20:00 UT and I got the scope out to look at the day 13 moon; I spent a
few minutes deciding whether to sketch Wargentin or Rima Sirsalis, and
as you can see decided on the latter. High cloud rolled in but I kept on
going, and managed a passable sketch in decreasing visibility as the sky
turned foggy. The terrain which the rille cuts through is fascinating;
from the Ocean of storms in the north (bottom) past craters Sirsalis and
Cruger A, and then on reaching De Vico A it makes a westward hook
towards Lamarck and Byrgius before petering out. The nearby craters
Darwin and Cruger make excellent background scenery. I include a
labelled version. The rille is 420km long and 5km wide.
Lunar craters Humbolt and Hecataeus
Sketch and Details by Frank McCabe
Two old large craters near the eastern limb of the moon were putting on such a nice show at sunset that I could not resist sketching them. First was the floor fractured crater Humboldt (207 km.). This is an ancient Upper Imbrian period depression on the lunar surface. The mountain range in the center of this crater was catching the last rays of sunlight while the northeastern rim was already consumed by darkness as was most of the crater floor. Along the limb below Humboldt to the north in the eyepiece is the Nectarian walled plain crater Hecataeus (167 km.). The floor of this crater was completely in shadow while the inner, far, steep wall was directly illuminated by the sun and showing some interesting structure and texture.
Sketching:
For this sketch I used: white sketching paper 12”x 9”, HB, 4B, 6B graphite pencils, a blending stump and a plastic eraser the sky was darkened using black Conte’ pencil. After scanning, Brightness was decreased (-2) and contrast increased (+2) using Microsoft Office Picture Manager.
Telescope: 10 inch f/ 5.7 Dobsonian and 6 mm eyepiece 241x
Date: 11-3-2009, 4:45 – 6:00 UT
Temperature: 7° C (45° F)
clear, calm, low humidity
Seeing: Antoniadi III
Colongitude 99.1°
Lunation 16 days
Illumination 99.8 %
Frank McCabe
