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Another Look Near to the Altai Scarp at Higher Sun

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#1 frank5817

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Posted 04 July 2014 - 09:44 PM

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 :)

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#2 frank5817

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Posted 04 July 2014 - 09:45 PM

with labels

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#3 kraterkid

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Posted 04 July 2014 - 11:02 PM

Exquisite sketch of a devilishly complex region Frank! These ancient pre-Nectarian craters have been battered by the intense bombardment from the formation of the Nectaris basin. The precise and beautiful capture of such fine details as the meandering "stepping stone" like pattern of the craters on the floor of Rabbi Levi and the chaotic overlapping area to the north of Riccius are masterfully rendered. Great commentary on the area. Wow!

#4 Jef De Wit

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Posted 05 July 2014 - 03:43 AM

Fine sketch and interesting report!

#5 Andrev

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Posted 05 July 2014 - 04:53 AM

Beautiful Frank.

Andre.

#6 Chuck Hastorf

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Posted 05 July 2014 - 07:00 AM

Frank
Great sketch! Extremely complex area. You've peaked my curiosity. Gotta' take a look.

Thanks,
Chuck

#7 niteskystargazer

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Posted 05 July 2014 - 10:12 AM

Frank,

Very good sketch of Altai Scarp :).

CS,KLU,

:thanx:,

Tom

#8 frank5817

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Posted 05 July 2014 - 10:28 AM

Rich, Jef, Andre, Chuck and Tom

Thank you all for the nice remarks to my sketch.
Great sketching to you all.

Frank :)

#9 Tommy5

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Posted 05 July 2014 - 11:07 PM

very nice lunar sketch, lots of texture and details.

#10 frank5817

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Posted 07 July 2014 - 07:42 PM

Tom,

Thank you for the nice words. As you well know this has not been a great summer for observing but at the very least our water bills are low. :cloudy:

Frank :)

#11 CarlosEH

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Posted 08 July 2014 - 12:36 AM

Frank,

An excellent observation and report on a very interesting and complex area of the Moon. You have very nicely captured the complexity of this region. Thank you for sharing it with us all.

Regards,
Carlos

#12 PeterDob

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Posted 08 July 2014 - 06:43 AM

That is so lovely, Frank! You really chose one hell of a subject for your sketch given that myriad of tiny little craters. Very suggestive, very well done!

Peter

#13 frank5817

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Posted 08 July 2014 - 09:58 PM

Carlos and Peter,

Thank you both much for the kind words.
I look forward to seeing future sketches from you both soon.

Frank :)

#14 azure1961p

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Posted 08 July 2014 - 10:15 PM

Frank,

You are fearless and talented - that's an intensive degree of detail and very naturally portrayed. Fine work sir! The annotated version is a nice touch!

Pete

#15 Heidescoper

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Posted 09 July 2014 - 01:11 AM

hi Frank,

an another beautiful moon sketch from You !
The crater chain looks very interesting.

Bye
Christian

#16 frank5817

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Posted 09 July 2014 - 10:30 PM

Pete and Christian,

Thank you both for your generous words.

Frank :)

#17 Aquarellia

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Posted 10 July 2014 - 02:38 AM

Superb Frank!
Your sketch is in a good place in http://www.asod.info/?p=12681 !
Michel

#18 Special Ed

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Posted 11 July 2014 - 09:55 PM

Frank,

Great work--what a complex of craters on top of craters. And that chain in Rabbi Levi is cool. You haven't lost your touch even if the weather has kept you in. :)

#19 frank5817

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Posted 11 July 2014 - 11:50 PM

Michel and Michael,

Thank you both.
Hope you both are having a fine summer observing and sketching when you can.

Frank :)

#20 rolandlinda3

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Posted 13 July 2014 - 09:28 PM

I agree with some of the comments...that is a lot of detail in that sketch in a complex area. Nicely done.

#21 frank5817

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Posted 14 July 2014 - 11:43 AM

Roland,

It was almost too much as the Moon moved towards the horizon.I actually could have used an additional 20 minutes.

Thank you.

Frank :)






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