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Lunar Terminator Near to the Western Limb

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#1 frank5817

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Posted 26 February 2013 - 01:45 AM

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.
Sketching:

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 %

Frank McCabe :)

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#2 frank5817

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Posted 26 February 2013 - 01:46 AM

With labels

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#3 mike73

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Posted 26 February 2013 - 03:59 AM

Stunning Frank, very nice indeed!

#4 Jef De Wit

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Posted 26 February 2013 - 08:29 AM

Great work!

#5 Andrev

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Posted 26 February 2013 - 08:38 AM

Totaly beautiful sketch Frank.

Andre

#6 frank5817

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Posted 26 February 2013 - 02:27 PM

Mike, Jef and Andre,

Thanks guys, nice words from 3 of my favorite sketchers.

Frank :)

#7 niteskystargazer

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Posted 26 February 2013 - 04:43 PM

Frank,

Very nice sketch of the Lunar Terminator :).

CS,KLU,

:thanx:,

Tom

#8 Aquarellia

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Posted 26 February 2013 - 05:37 PM

So nice Frank ! 2:30 hours of sketch for a splendid result

#9 frank5817

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Posted 26 February 2013 - 06:01 PM

Tom and Michel

Thank you both for commenting with your kind words.
---

Michel - I actually sketched for less than 2 hours; I went indoors to warm my hands and fingers a few times. I have fingerless gloves but they are not helpful to me.

Frank :)

#10 maroubra_boy

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Posted 26 February 2013 - 06:19 PM

Frank, what a wonderful rendition. You've laid down a wealth of detail, and show a masterful sense of observation and control of the media. The thin rile between Krafft and Cardanus is gorgeous. The variation in illumination of the plains and the major craters is stunning.

Well done mate!

Alex.

#11 PeterDob

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Posted 27 February 2013 - 07:33 AM

Oh yes... I love it too! Gorgeous drawing and wonderful detail... You're one heck of an artist, Frank! Congratulations!

Peter

#12 frank5817

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Posted 27 February 2013 - 12:08 PM

Alex and Peter,

Thank you both, this is a great place to post sketches because I get to see your works here and those of all the other sketchers.

Frank :)

#13 JimPie

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Posted 28 February 2013 - 09:12 AM

Its a beaut! Amazing fine details (topographical) in Balboa-A and Dalton.

#14 Uwe Pilz

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Posted 01 March 2013 - 12:13 AM

Sketching the limb is more complicated. Well done and a lot of details!

#15 frank5817

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Posted 01 March 2013 - 01:22 AM

Jim and Uwe,

Thank you for your kind words and best to you both in your observing and sketching.

Frank :)

#16 Tommy5

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Posted 02 March 2013 - 09:46 PM

Very nice sketch of the moon, is there any part of the visible moon that you haven't sketche?

#17 frank5817

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Posted 02 March 2013 - 10:48 PM

Tom,

Thanks for the compliment.
There are many features on the Moon I have not sketched, many are right in the middle of the Earth facing side. I have a list. :)

Frank

#18 rolandlinda3

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Posted 03 March 2013 - 09:12 AM

That sure is a pretty sketch, Frank.

#19 JeanB

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Posted 04 March 2013 - 01:43 PM

Terrific work, Frank! And thanks for the report and the info: I like that.

Jean

#20 frank5817

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Posted 04 March 2013 - 11:38 PM

Roland and Jean,

Thank you much, I'm happy you both liked the sketch, it was exciting for me to be lucky enough to capture this scene.

Frank :)

#21 ericj

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Posted 12 March 2013 - 10:05 AM

Hi Frank,

Really nice sketch as always, thanks for posting it. You recorded a lot of fine detail.

Best,

Eric

#22 frank5817

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Posted 14 March 2013 - 03:03 PM

Eric,

Thank you. I enjoyed making this sketch and with all the cloudy weather lately, it is wonderful to get a break as you well know.

Frank :)






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