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Astrophotography and Sketching >> Sketching

Pages: 1
Heidescoper
sage


Reged: 11/21/10

Loc: Niedersachsen, Germany
Lunar - X new
      #6452047 - 04/07/14 02:33 AM Attachment (21 downloads)

hi all,

3-8-2014, 20:30 UT
6" Dobson, f/6 , Bino V 175x

Bye
Christian


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Tamas Bognar
sage


Reged: 02/02/09

Loc: Hungary, Zákány
Re: Lunar - X new [Re: Heidescoper]
      #6452049 - 04/07/14 02:35 AM

Excellent sketch !

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CarlosEH
Postmaster
*****

Reged: 01/19/05

Loc: Pembroke Pines, Broward County...
Re: Lunar - X new [Re: Tamas Bognar]
      #6452117 - 04/07/14 05:20 AM

Christian,

An excellent capture and rendering of the elusive Lunar-X (25.3°S, 0.9°E) clair-obscur (or Chiaroscuro; contrast effect between light and dark regions) optical feature on the Moon that forms a letter X on the rims of the craters Blanchinus, La Caille, and Purbach. It may be observed (depending upon the sun angle) for approximately four hours around the lunar First Quarter.

Links;
https://the-moon.wikispaces.com/Lunar+X
http://www.universetoday.com/100810/stalking-the-lunar-x/

Regards,
Carlos


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niteskystargazer
Carpal Tunnel
*****

Reged: 10/05/09

Loc: 41-43'-28" N 87-42'-39" W
Re: Lunar - X new [Re: Heidescoper]
      #6453146 - 04/07/14 04:25 PM

Christian,

Nice sketch of the Lunar "X" .

CS,KLU,

,

Tom


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frank5817
Postmaster
*****

Reged: 06/13/06

Loc: Illinois
Re: Lunar - X new [Re: niteskystargazer]
      #6453675 - 04/07/14 09:39 PM

Christian,

This is an excellent capture of the Famous X.

Frank


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Uwe Pilz
scholastic sledgehammer


Reged: 05/16/08

Loc: Leipzig, Germany
Re: Lunar - X new [Re: frank5817]
      #6453934 - 04/08/14 01:18 AM

I never saw lunar X and I am still waiting for an clear evening with the right lunar illumination. Thank you for sharing it!

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geminijk
scholastic sledgehammer


Reged: 04/03/08

Loc: TN
Re: Lunar - X new [Re: Uwe Pilz]
      #6455594 - 04/08/14 11:38 PM

Great job!

John


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Heidescoper
sage


Reged: 11/21/10

Loc: Niedersachsen, Germany
Re: Lunar - X new [Re: geminijk]
      #6455932 - 04/09/14 07:01 AM

hi all,
thank You for the compliments.
Carlos:
thank You for the explanation .I forgot...

Bye
Christian


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Chuck Hastorf
member
*****

Reged: 11/20/12

Loc: AZ, USA
Re: Lunar - X new [Re: Heidescoper]
      #6456010 - 04/09/14 08:23 AM

Nice sketch, Thanks for posting,

Chuck


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kraterkid
Post Laureate
*****

Reged: 03/07/05

Loc: Jacumba, California
Re: Lunar - X [Re: Chuck Hastorf]
      #6458553 - 04/10/14 01:27 PM

Excellent sketch Christian! You had to work quickly to capture this in the rapidly changing light at the terminator. Well done.

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