Lunar craters Billy and Hansteen with the mountain Mons Hansteen - December 4, 2014

Craters Billy and Hansteen

Lunar craters Billy and Hansteen with the mountain Mons Hansteen - December 4, 2014
Lunar craters Billy and Hansteen with the mountain Mons Hansteen – December 4, 2014
Billy, Hansteen and Mons Hansteen labeled
Billy, Hansteen and Mons Hansteen labeled

Craters Billy and Hansteen

It has been cold in Chicagoland and although it was sunny most of the day, high cirrus clouds moved in after sunset to block out all stars fainter than 3rd magnitude. Ice crystals at high altitude generated a colorless halo around the Moon. Not the best conditions for sketching but the first chance in 4 weeks for me. My target for this sketch was the pair of craters at the southern edge of Oceanus Procellarum. Crater Billy (46 km.) with its dark smooth lava covered floor and crater Hansteen (45 km.) with its hilly, irregular floor and terraced walls present contrasting looking craters of similar size and age. Between these craters is a large arrowhead shaped volcanic extrusion feature called Mons Hansteen. This object always looks very bright at or near full Moon.

Sketching:

Black Canson paper, white and black Conte’ pastel pencils, white Pearl eraser, blending stumps
Telescope 13.1” f/6 Dobsonian telescope on an equatorial drive platform at 222x with 9mm eyepiece

Date: 12-04-2014, 02:00 – 03:00 UT


Temperature: -7°C (20° F) 
mostly cloudy, calm

Seeing: Antoniadi IV (poor)

Colongitude: 54.2 °

Lunation: 11.4 days

Illumination: 92.5 %



Frank McCabe


8 thoughts on “Craters Billy and Hansteen”

  1. Frank,

    Fine sketch, of the Craters Billy and Hansteen!
    Mons Hansteen is like an arrowhead. It’s like when I first saw the telescope these craters.

    best regards,
    Tamas

  2. Frank,

    Very much enjoy seeing the fine details of your sketches on ASOD. The comparison of the 2 craters makes an excellent composition. I think the next time I encounter them I will know them immediately!

    Aloha !
    Cindy

  3. Hello Frank,

    a very fine sketch from our moon, as known from you.
    Thank your for sharing this with us.

    Greetings from Berlin,

    Torsten

  4. Tamas, Cindy and Torsten,

    Thank you all for you nice comments.
    I look forward to seeing your sketches here.

    Frank 🙂

  5. Very interesting sketch Frank. Seems more “grey” and less “black and white” than some of your other ones. Slightly less dramatic, but possibly more realistic. Great technique.

    -Ivan

  6. Daniel, Dale and Ivan,

    Thank you all for your comments on my sketch.
    I hurried through this one in the cold.

    Frank 🙂

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