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Astrophotography and Sketching >> Sketching

Pages: 1
Paul G. Abel
sage


Reged: 01/28/10

Loc: UK
Saturn in IL and W#25A
      #5838428 - 05/03/13 01:48 PM

Greetings all.

Please find attached two Saturn drawings made on 2013 May 02-03. Seeing was largely poor although there were some steadier moments. The use of a W#25A filter really helped to stabilise the image so I shall probably be using this filter a lot more as the Saturn continues to drop in altitude. managed to take some intensity estimates and do some filter work.

(1). Drawing 1 0037UT, x167, S:AIV (IL): A number of interesting things on the disk:
-EB present and seems to be a light brown in colour, EZ quite bright.
-NEB broad, two distinct components seen separated by a broad NEBz. It seems as though there may have been a number of darker sections in both components and faint delicate strctures crossing the NEBz although it is hard to be certain.
-NTropZ brighter than NTZ, some mottlings present in the NTropZ?
-A Ring greyish
-B1-Ring bright and white in colour
-No sign of the B2-Ring and yet it seemed as if the dark B3 Ring was present unless this was a contrast effect between the bright B1-Ring and the C-Ring.
-C-Ring quite noticeable near ansae edges- slight greenish yellow colour present?

(2). Drawing 2: 0045UT,x167, S:AIII-IV, W#25A Filter: The interesting thing about this filter is how much darker they A-Ring looks, and is of a noticeable brownish hue.
Best wishes,
-Paul

I should add that the details in the NEBz and NTropZ have been emphasized somewhat.



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kenrenard
Carpal Tunnel


Reged: 12/13/12

Loc: Dunmore, PA
Re: Saturn in IL and W#25A new [Re: Paul G. Abel]
      #5838534 - 05/03/13 02:50 PM

Paul,
Interesting work. Great sketches. I just started working with filters and I am starting to see some of the benefits. I still need to train my eyes to see more detail. Thanks for sharing your work.


Ken


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niteskystargazer
Carpal Tunnel
*****

Reged: 10/05/09

Loc: 41-43'-28" N 87-42'-39" W
Re: Saturn in IL and W#25A new [Re: Paul G. Abel]
      #5838544 - 05/03/13 02:57 PM

Paul,

Nice sketch of Saturn .

CS,KLU,

,

Tom


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Illinois
Carpal Tunnel


Reged: 12/18/06

Loc: near Dixon, Illinois USA
Re: Saturn in IL and W#25A new [Re: niteskystargazer]
      #5845452 - 05/07/13 12:33 PM

NICE! Good job!

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PeterDob
scholastic sledgehammer


Reged: 07/29/05

Loc: CarĂ¹, Italy
Re: Saturn in IL and W#25A new [Re: Illinois]
      #5845873 - 05/07/13 03:06 PM

Lovely drawings and very interesting as well. I've never been a great fan of colour filters but still I must admit that they sometimes reveal certain things which you might otherwise miss. Thank you very much for this nice work and for sharing it with us.

Peter


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Heidescoper
sage


Reged: 11/21/10

Loc: Niedersachsen, Germany
Re: Saturn in IL and W#25A new [Re: PeterDob]
      #5868683 - 05/18/13 02:36 AM

hi Paul,
You show us again a very good work !

Bye
Christian


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