Jump to content


Photo

Edge of Mare Crisium

  • Please log in to reply
16 replies to this topic

#1 Erix

Erix

    Toad Lily

  • *****
  • Administrators
  • Posts: 25784
  • Joined: 25 Dec 2004
  • Loc: Texas, USA

Posted 04 September 2012 - 03:05 PM

2012 09 04, 0330 UT - 0615 UT Mare Crisium
Erika Rix, Texas - www.pcwobservatory.com

AT6RC f/9 1370mm, LXD75, Baader Planetarium Hyperion 8-24mm Mark III (FOV 68 degrees at 171x), no filter
84F, 56% H, winds gusting 5-10 mph, clear, Antoniadi IV increasing to II, T 3/6
Alt: 11deg 43´, Az: 83deg 22´ to Alt: 46deg 21´, Az: 105deg 21´
Phase: 318.4 degrees, Lunation: 17.48 d, Illumination: 87.4%
Lib. Lat: -03:07, Lib. Long: +03.74

Type: Sea (Sea of Crisis)
Geological period: Nectarian (From -3.92 billion years to -3.85 billion years)
Dimension: 740km
Floor: lava-filled and is ~ 1.8 km below lunar datum
Outer rim: ~3.34 km above lunar datum

Eyepiece sketch on black Strathmore Artagain paper, white Conte’ crayon and pencil, Derwent watercolor pencil, black charcoal, black oil pencil.


Link to full report

Mare Crisium looked like it was taking a bite out of the Moon. I’ve always been a bit intimidated at sketching rough terrain, but took a stab at it nevertheless. Sketching in the highlights makes it incredibly easier in fast moving areas such as along the terminator. The trick is to have very sharp pencils at hand, and I made sure of that during set up before it got dark outside – although I did have to resharpen once or twice during the session (as well as stand up and stretch.) It was a rush against time to render the basin’s western edge before the shadows swallowed the view.

I began with the inner ridgeline along the terminator, marking each highlighted crest individually with a very sharp Conte’ pastel pencil. Then as quickly and accurately as I could, started working my way west, alternating between the Conte’, charcoal, Derwent and oil pencils, focusing first on the highlights, then the shadows, followed by albedo.

Posted Image

Labelled version:

Posted Image

#2 rodelaet

rodelaet

    Gemini

  • *****
  • Posts: 3185
  • Joined: 28 Apr 2006
  • Loc: 50°56' N - 4°58' E (Belgium)

Posted 04 September 2012 - 04:15 PM

Hi Erika,

What a detailed sketch! You managed to sketch a remarkable amount of surface of the moon. I'm much impressed by the attention you payed to the details in the sketch. How did you not get lost in the clutter and how did you stay focused for such a long session? Congratulations with a job very well done! :bow: :bow: :bow:

#3 JeanB

JeanB

    Apollo

  • -----
  • Posts: 1330
  • Joined: 11 Jul 2011
  • Loc: Montreal, Canada

Posted 04 September 2012 - 06:54 PM

Well Rony expressed all my feeling and admiration for your sketch Erika!

It is simply amazing to be able to keep all your concentration on details while having to go back and fro to the eyepiece.

Jean

#4 Erix

Erix

    Toad Lily

  • *****
  • Administrators
  • Posts: 25784
  • Joined: 25 Dec 2004
  • Loc: Texas, USA

Posted 04 September 2012 - 08:21 PM


How did you not get lost in the clutter and how did you stay focused for such a long session?


Thanks Rony and Jean. :)

I did get lost a couple times in the rim of Mare Crisium, especially as the shadows were changing quite a bit during the course of the session. I had to keep going back to the major features in the rim to map my way to where I needed to go next. The worst was the roughened area just west of the rim. There was so much insignificant detail in that lightened patch that I didn't know where to begin. So I concentrated on the major details first and then filled in as time allowed. Each highlighted area was plotted, not just randomly added to give the appearance of the rim. Those highlights were actually easier to sketch than the brightened rough area to the west of the west of the rim.

I stopped a few times to stand up and stretch. That sort of revived me for the next round. I had intended to sketch Jupiter next but ran out of steam. :lol:

#5 Uwe Pilz

Uwe Pilz

    Apollo

  • *****
  • Posts: 1028
  • Joined: 16 May 2008
  • Loc: Leipzig, Germany

Posted 04 September 2012 - 11:04 PM

Such a large area with this amount of detail - really great.

I don't believe that I could sketch 3 hours in one step. Thank you for sharing ths beautiful image.

#6 astronz59

astronz59

    Ranger 4

  • -----
  • Posts: 363
  • Joined: 15 Sep 2010
  • Loc: Auckland, New Zealand

Posted 05 September 2012 - 01:30 AM

Erika, I think that for endurance, you are in the same sketching league as Marathon Man, aka Paul Abel. Magnificent drawing and excellent technique. Thank you! :refractor::rollgrin: :bow: :bow: :bow:

#7 Jef De Wit

Jef De Wit

    Mercury-Atlas

  • *****
  • Posts: 2754
  • Joined: 06 Mar 2009
  • Loc: Hove, Belgium

Posted 05 September 2012 - 07:13 AM

I can only agree with all the comments above (and probable also below ;)).

#8 marcink

marcink

    Mariner 2

  • *****
  • Posts: 218
  • Joined: 01 Aug 2007
  • Loc: Lombard (Chicagoland), IL

Posted 05 September 2012 - 01:23 PM

Absolutely amazing! I admire your talent and persistence.

#9 frank5817

frank5817

    Cosmos

  • *****
  • Posts: 8437
  • Joined: 13 Jun 2006
  • Loc: Illinois

Posted 05 September 2012 - 11:41 PM

Hello Erika,

That is a masterpiece of a marathon sketch. You selected a beautiful and difficult target and handled it with your grand style.
Stunning work and a real treat to also see at Lunar Photo of the Day (LPOD) September 6, 2012.

Frank :)

#10 Ibmelrod

Ibmelrod

    Ranger 4

  • -----
  • Posts: 341
  • Joined: 18 Oct 2004
  • Loc: Ontario Canada

Posted 06 September 2012 - 12:15 PM

Congratulations Erika for the appearance of your beautiful Mare Crisium on today's LPOD. Well deserved for such a masterful work.

#11 Erix

Erix

    Toad Lily

  • *****
  • Administrators
  • Posts: 25784
  • Joined: 25 Dec 2004
  • Loc: Texas, USA

Posted 06 September 2012 - 02:17 PM

Thank you very much for the kind words,everyone. :)

#12 dscarpa

dscarpa

    Gemini

  • *****
  • Posts: 3006
  • Joined: 15 Mar 2008
  • Loc: San Diego Ca.

Posted 06 September 2012 - 02:43 PM

Very impressive! Thanks for posting it. David

#13 refasali

refasali

    Vostok 1

  • -----
  • Posts: 102
  • Joined: 28 Jan 2012
  • Loc: Oregon & Washington

Posted 06 September 2012 - 05:39 PM

Nice!

#14 niteskystargazer

niteskystargazer

    Gemini

  • *****
  • Posts: 3102
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 07 September 2012 - 01:30 PM

Erika,

Good sketch of the Edge of Mare Crisium :).

CS,KLU,

:thanx:,

Tom

#15 Rutilus

Rutilus

    Surveyor 1

  • -----
  • Posts: 1873
  • Joined: 17 Dec 2010

Posted 10 September 2012 - 03:29 PM

Excellent work.

#16 mdowns

mdowns

    Surveyor 1

  • *****
  • Posts: 1669
  • Joined: 12 Jun 2010
  • Loc: Englewood,FL

Posted 10 September 2012 - 05:37 PM

Outstanding representations covering a target area with such a high degree of difficulty.Your results are to be admired!

#17 rolandlinda3

rolandlinda3

    Gemini

  • *****
  • Posts: 3415
  • Joined: 24 Jan 2006
  • Loc: Crozet VA 22932

Posted 10 September 2012 - 07:30 PM

What a beautiful and detailed rendering. One of my favorite areas, but I have never approached the level of detail you have captured. Well done.






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics