Mare Crisium Illuminated on the Young Moon
Posted 14 February 2013 - 02:32 AM
The Nectarian Period impact event that formed this feature occurred more than 3.8 billion years ago. The mare portion of the basin is about 500 kilometers across. In the grazing sunlight on the floor, wrinkled ridges were visible. Also on the western floor craters Picard (24 km.), Peirce (19 km.) and Swift (11km.) stood out in the low light. I could see the lighter gray bench lava that partly buried craters here such as Yerkes (37 km.). Tall flat top mountains (massifs) beyond the shore stand at 2-5 kilometers above the sea. Both promontoria Lavinium and Olivium stood out clearly in very brief moments.
For this sketch I used: 400 series black Strathmore Artagain paper 9″x 9″, white and black Conte’
pastel pencils , and Conte’crayons, a blending stump, plastic eraser.
Telescope: 13.1 inch f/ 6 Dobsonian with 6mm (332x)
Date: 2-13 & 14-2013 23:00 – 00:45 UT
Temperature: 1.7°C (35°F)
Weather: clear, calm
Seeing: not good Antoniadi IV
Co longitude: 310.9°
Lunation: 3.69 days
Posted 14 February 2013 - 05:28 AM
Posted 14 February 2013 - 06:53 AM
Lovely area !
Posted 14 February 2013 - 02:02 PM
Another stunning sketch. This Mare at the edge of the terminator.
Posted 14 February 2013 - 09:43 PM
Thank you all for your kind comments. A fun sketch but I was not comfortable with the rush. Amazing to have a partly clear night in winter.
Best to all of you in your sketching/observing.
Posted 15 February 2013 - 07:56 AM
Posted 16 February 2013 - 12:09 PM
Posted 16 February 2013 - 02:36 PM
Thank you for all the nice words.
Alex - You certainly are correct about the over doing it while sketching, I have ruined my share by over working some.
Mike, and Peter - Don't think for one minute that you can't do this lunar sketching or any kind of sketching. What helps more than anything is free time to practice.
Posted 16 February 2013 - 06:10 PM
Let me repeat--Wow! This is one of your best. I like the second sketch with labels, too.
Thanks for encouraging the rest of us to sketch Luna, even if she is kinda scary.
Posted 17 February 2013 - 12:40 AM
Thank you for that.
I have seen many, many of your superb sketches and I know you can sketch the moon!
Posted 17 February 2013 - 09:51 PM
Thank you but that is how I feel about those Jupiter sketches in color you post.
Posted 17 February 2013 - 09:55 PM
Great stuff - you are fearless in the face of detail!!! You consistently put out nice stuff. I enjoyed your Luna message lol.
Posted 18 February 2013 - 12:26 AM
Posted 18 February 2013 - 10:05 AM
Thank you both for your kind words.
I was hoping to get the entire basin to the rim but not this time.
Posted 18 February 2013 - 09:55 PM
...I was hoping to get the entire basin to the rim but not this time.
Yes, but the tonal subtleties and differences on the part of the basin floor that you could see are extremely well rendered.
Posted 19 February 2013 - 01:38 PM
Thank you both for your nice words.
I like to go after the waxing crescent Moon features from now until June and the waning crescent in Fall. Spring can be tough viewing for seeing but now and then I get lucky.
Posted 24 February 2013 - 12:04 PM
Posted 24 February 2013 - 09:07 PM
Mr. Yerkes A.K.A. Chicago's very own Mr. Larceny. For his behavior, life in prison would have been too good. You know your Chicago history T5.
Thanks for the kudos.