Jump to content


Photo

Crater Bailly

  • Please log in to reply
7 replies to this topic

#1 Randolph Jay

Randolph Jay

    Vostok 1

  • -----
  • Posts: 198
  • Joined: 29 Jul 2012
  • Loc: South Huntington, NY, USA

Posted 20 August 2013 - 08:32 AM

The skies were clear the seeing was good so I thought I would try a sketch of Bailly. I'd never sketched any features in this area and once again had to do battle with trees to the south. This was done this morning 12:30 - 1:00 am EDT. Black sketch paper and black and white Conte crayons and pencils. Celestron 120 Omni Refractor and a magnification of 200x.
Randolph

Attached Files



#2 PeterDob

PeterDob

    Viking 1

  • -----
  • Posts: 869
  • Joined: 29 Jul 2005
  • Loc: Castelnovo ne' Monti, Italy

Posted 20 August 2013 - 10:59 AM

Beautiful, Randolph!!! The ravines to the South seem really deep on tour drawing. Another fine example of how well you master 3D rendering. Well done!

Peter

#3 Jef De Wit

Jef De Wit

    Mercury-Atlas

  • *****
  • Posts: 2734
  • Joined: 06 Mar 2009
  • Loc: Hove, Belgium

Posted 20 August 2013 - 11:29 AM

Another impressive sketch! Is the blue and red in your sketch the result of scanning?

#4 niteskystargazer

niteskystargazer

    Gemini

  • *****
  • Posts: 3061
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 20 August 2013 - 02:56 PM

Randolph,

Very good sketch of Crater Bailly :).

CS,KLU,

:thanx:,

Tom

#5 Randolph Jay

Randolph Jay

    Vostok 1

  • -----
  • Posts: 198
  • Joined: 29 Jul 2012
  • Loc: South Huntington, NY, USA

Posted 20 August 2013 - 03:03 PM

Thank you Jef and Peter.
In answer to your question Jef concerning the slight blue and red color...The original is sketch was done on black Artagain sketch paper with black and white conte crayons and pencils. It has no color other than the black, white and gray tones. But when I observe the moon, I really do see slight but definite colors. I know the different lavas of the surface are truly distinct ( and even named )and some of them I see as blue, some reddish and even hints of green. As an optometrist, I've needed to test patients for color perception and I've "trained" myself to be aware of even slight color differences. I am aware of what is chromatic aberation through the Celestron refractor ( it's an achromatic, not an apochromatic scope ) and what I think is real color. So I played with the final image in Picasa until it showed this little bit of color. I don't know how to sketch exactly the colors I see on the moon. I've thought of trying some colored pastels on the black sketch paper but haven't done so yet. Do you think I should leave out this effect of a suggestion of color and just do a grey scale? I would love to hear what you think! I so appreciate the work I've seen here. Not many of my fellow amateur astronomy enthusiasts ( those I know in person ) are interested in sketching!
Thanks,
Randolph

#6 Randolph Jay

Randolph Jay

    Vostok 1

  • -----
  • Posts: 198
  • Joined: 29 Jul 2012
  • Loc: South Huntington, NY, USA

Posted 20 August 2013 - 03:05 PM

And thank you Tom!
Randolph

#7 Jef De Wit

Jef De Wit

    Mercury-Atlas

  • *****
  • Posts: 2734
  • Joined: 06 Mar 2009
  • Loc: Hove, Belgium

Posted 20 August 2013 - 03:55 PM

Do you think I should leave out this effect of a suggestion of color and just do a grey scale?

No, not at all! It gives your sketches a personal touch. I never paid attention to color on the Moon. I'll give it a try next time.

#8 frank5817

frank5817

    Cosmos

  • *****
  • Posts: 8390
  • Joined: 13 Jun 2006
  • Loc: Illinois

Posted 21 August 2013 - 12:43 AM

Randolph,

A beautiful capture of crater Bailly. The floor details, ramparts, rims and even the colors you see add much to the composition. The Moon is not just black and white and grey, as you say - color is visible. We all have different perceptions of color on the Moon. I tend not to pick it up so well with direct vision. Nevertheless, the colors are there and you see them so they should be included.

Frank :)






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics