Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Lunar crater J. Herschel at northern border of Mare Frigoris

  • Please log in to reply
7 replies to this topic

#1 acr_astro

acr_astro

    Viking 1

  • -----
  • topic starter
  • Posts: 914
  • Joined: 16 Jan 2013
  • Loc: Germany, Dusseldorf area

Posted 07 January 2020 - 02:31 PM

Dear all,

 

yesterday evening I have chosen the lunar crater J. Herschel (named after British astronomer John Herschel from 19th century, the son of William Herschel) which exposed a pretty convexed floor in the rising sun. The crater has a diameter of about 150 km and lies at the northern "coast" of Mare Frigoris.

The sketch starts with Harpalus in the South, then you can see the 24 km crater Horrebow (named after a Danish astronomer from 17th century) just at the southern rim of J. Herschel. At the northern end of my sketch we have the 71 km crater Philolaus.

The dominating crater J. Herschel (too be precisely a walled plain) has a quite rough surface which is said to be caused by ejecta from the impact that formed the Mare Imbrium. This rough structure and its convexed shape resulted in a nice three-dimensional appearance.

Southeast of it, I sketched the secondary craters J. Herschel F and la Condamine B which are located in Mare Frigoris.

 

So here's the sketch:

20200106_J_Herschel_small.JPG

 

Telescope: Celestron NexStar 127 SLT

Eyepiece: Explore Scientific 14mm/82°

Date & Time: January 6th, 2020 / 1845-1945 CET

Location: Backyard, Dusseldorf Region, Germany

Technique: Koh-i-Noor chalk, extra charcoal and whitecoal pens and pieces on Seawhite of Brighton black sketching paper

Size: appr. 20x30cm

 

And finally here's a photo of my observation place:

20200106_192920.jpg

 

Clear skies!

 

Achim


  • Asbytec, eros312, Jef De Wit and 9 others like this

#2 sunnyday

sunnyday

    Skylab

  • *****
  • Posts: 4,334
  • Joined: 23 Sep 2019
  • Loc: Ottawa,Canada

Posted 07 January 2020 - 02:33 PM

very beautiful sketch.


  • acr_astro likes this

#3 Uwe Pilz

Uwe Pilz

    Gemini

  • *****
  • Moderators
  • Posts: 3,004
  • Joined: 16 May 2008
  • Loc: Leipzig, Germany

Posted 07 January 2020 - 02:50 PM

I sketched the same region yesterday. It looked very rewarding, and it was.

 

Thank you for your sketch.


  • acr_astro likes this

#4 frank5817

frank5817

    Voyager 1

  • *****
  • Moderators
  • Posts: 13,668
  • Joined: 13 Jun 2006
  • Loc: Arizona

Posted 07 January 2020 - 02:53 PM

Achim,

 

Excellent sketch. You captured that rubble surface very well .

 

Frank :)


  • acr_astro likes this

#5 Codbear

Codbear

    Viking 1

  • *****
  • Posts: 885
  • Joined: 23 Jan 2016
  • Loc: Novato, CA

Posted 07 January 2020 - 03:58 PM

I was observing the rubble area last evening as well. It was an exceptional evening of steady seeing and I had my Questar 7 up to 384x with sharp views. I was wondering what created the rubble...thank you for providing a history of the impact area as well!

 

Sam


  • acr_astro likes this

#6 niteskystargazer

niteskystargazer

    Fly Me to the Moon

  • *****
  • Posts: 7,298
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 07 January 2020 - 04:13 PM

Achim,

 

Very nice sketch of Lunar Crater J. Herschel (At Northern Border of Mare Frigoris) smile.gif ,

 

CS.KLU,

 

thanx.gif ,

 

Tom


  • acr_astro likes this

#7 acr_astro

acr_astro

    Viking 1

  • -----
  • topic starter
  • Posts: 914
  • Joined: 16 Jan 2013
  • Loc: Germany, Dusseldorf area

Posted 08 January 2020 - 01:25 PM

Dear all,

thanks for your wonderful feedback!

Clear skies!

Achim

#8 DDEV

DDEV

    Explorer 1

  • -----
  • Posts: 96
  • Joined: 07 Aug 2019
  • Loc: Dublin, Ireland

Posted 08 January 2020 - 04:05 PM

Hi Achim,

 

You've produced a beautiful sketch of this area of the Moon. I also like how you provided some historical information in your description.

 

Great job!

 

Clear skies,

Darren.


  • acr_astro likes this


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics