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Altai Scarp to Crater Riccius

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#1 frank5817

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Posted 06 April 2014 - 08:23 PM

Always an eye catching feature when visible, the Altai scarp which is as tall as 4 km. was nicely reflecting sunlight on this evening. This scarp is the southwestern rim of the Nectarius basin and its fourth ring. The other features that caught my attention are the 3 old battered craters along the terminator: Zagut (84 km.), Rabbi Levi (81 km.) and Riccius (71 km.). The two younger, deeper craters between Rabbi Levi and Altai scarp are Lindenau (53 km.) and Rothmann (42 km.). All of these craters would go unnoticed at higher sun but low sun angles have a way of making them look good.

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.
Telesccope: 13.1 inch f/6 Dobsonian and 6 mm eyepiece (333x) riding on an equatorial platform
Date: 04-06-2014, 00:45-02:15 UT
Temperature: 4° C (40° F)
Clear, calm
Seeing: Average - Antoniadi III
Transparency 3/5
Colongitude 340.0 °
Lunation 6 days
Illumination 36 %

Frank McCabe :)

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#2 frank5817

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Posted 06 April 2014 - 08:23 PM

with labels

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#3 Uwe Pilz

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Posted 06 April 2014 - 11:34 PM

Thank you for sharing that sketch!

#4 Tamas Bognar

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Posted 07 April 2014 - 12:31 AM

Excellent job ! Thank you for sharing it with us all.

#5 CarlosEH

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Posted 07 April 2014 - 02:23 AM

Frank,

An outstanding observation/sketch of Altai Scarp to Crater Riccius. You have captured much detail over this complex lunar terrain. Thank you for sharing it with us all.

Regards,
Carlos

#6 kraterkid

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Posted 07 April 2014 - 10:08 AM

Wow Frank, incredibly detailed sketch of this southern highlands area just below the Altai Scarp and Mare Nectaris! A wonderful capture of this very busy area of the Moon.

#7 Jef De Wit

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Posted 07 April 2014 - 11:38 AM

Fine sketch! Makes me want to go out and sketch the Moon... but it looks to be clouded tonight :(

#8 niteskystargazer

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Posted 07 April 2014 - 03:19 PM

Frank,

Very nice sketch of Altai Scarp to Crater Riccius :).

CS,KLU,

:thanx:,

Tom

#9 Tommy5

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Posted 07 April 2014 - 06:46 PM

Another great sketch, thanks for sharing.

#10 frank5817

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Posted 07 April 2014 - 08:35 PM

Uwe, Tamas, Carlos, Rich, Jef, Tom and Tommy5,

Thank you all.
It finally looks like winter may be ending here in Illinois.

Frank :)

#11 azure1961p

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Posted 07 April 2014 - 10:24 PM

Very nice intricate piece Frank. Interestingly the rendering seems to float above the deep grey background. Well done!

Pete

#12 Aquarellia

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Posted 07 April 2014 - 11:19 PM

Excellent Frank, you push us out to sketch moon landscapes, thank you for that!

#13 kenrenard

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Posted 08 April 2014 - 05:53 AM

Frank,
Impressive capture. Thanks for sharing.


Ken

#14 frank5817

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Posted 08 April 2014 - 09:45 AM

Pete, Michel and Ken,

Thank you for the kind words.

Frank :)

#15 JayinUT

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Posted 08 April 2014 - 08:04 PM

Frank,

Gorgeous. Love the capture. Thank you for posting it.

#16 frank5817

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Posted 09 April 2014 - 07:47 AM

Jay,

Thank you. :)

Frank

#17 acr_astro

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Posted 09 April 2014 - 12:41 PM

Hi Frank,

Great sketch! I like the 3D-effect.

Achim

#18 frank5817

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Posted 09 April 2014 - 11:30 PM

Achim,

Thank you much.

Frank :)






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