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Astrophotography and Sketching >> Sketching

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Jef De Wit
Carpal Tunnel


Reged: 03/06/09

Loc: Hove, Belgium
Rimae Petavius new
      #5678812 - 02/14/13 06:11 AM Attachment (22 downloads)

I don't observe much the young Moon: not visible from my garden, low in the sky, short time to sketch,... But yesterday I took the challenge by installing my scope on the local square. Fun to see all the neighbours pasing by: "what are you doing in the cold?".
Seeing conditions en transparancy weren't good and getting worse with the Moon going down. But Petavius is big enough to handle this. The Rimae is a fracture 60 x 3 km easily visible even in a small scope.
After one hour I had to stop sketching with the Moon disappearing in the clouds. But better a non-finished moonsketch than no sketch at all!


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Aquarellia
professor emeritus


Reged: 10/27/12

Loc: Provence, France
Re: Rimae Petavius new [Re: Jef De Wit]
      #5678859 - 02/14/13 06:57 AM

Nice cold story for this alive sketch

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niteskystargazer
Carpal Tunnel
*****

Reged: 10/05/09

Loc: 41-43'-28" N 87-42'-39" W
Re: Rimae Petavius new [Re: Jef De Wit]
      #5679327 - 02/14/13 12:12 PM

Jef,

Very Good sketch of Rimae Petavius .

CS,KLU,

,

Tom


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JimPie
professor emeritus


Reged: 11/10/07

Loc: S.E.Michigan
Re: Rimae Petavius new [Re: niteskystargazer]
      #5679504 - 02/14/13 01:37 PM

Jef,
Even unfinished -this is a very nice sketch of Petavius.


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frank5817
Postmaster
*****

Reged: 06/13/06

Loc: Illinois
Re: Rimae Petavius new [Re: JimPie]
      #5680232 - 02/14/13 09:20 PM

Jef, That crescent moon is a tough one to sketch even in late winter because of the short time and low altitude.
I think you captured Petavius beautifully. I barely looked at it in the sky last night trying to beat the moonset last night. Now I get to see it in your fine sketch.

Well done, rimae and all

Frank


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maroubra_boy
professor emeritus


Reged: 09/08/09

Loc: Sydney, Australia
Re: Rimae Petavius new [Re: frank5817]
      #5680800 - 02/15/13 08:00 AM

Ha! That would have been quite a site, you in the square with a scope and sketching the Moon! Marvellous story,

Nice sketch Jef. Rushed? Maybe. Finished? YES! Leave it alone, mate. It's brilliant like this. The fine detail of the Rimae is excellent.

Alex.


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geminijk
scholastic sledgehammer


Reged: 04/03/08

Loc: TN
Re: Rimae Petavius new [Re: maroubra_boy]
      #5680911 - 02/15/13 09:05 AM

Great sketch!

John


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SteelStar
super member


Reged: 11/08/09

Loc: Oklahoma
Re: Rimae Petavius new [Re: geminijk]
      #5681198 - 02/15/13 11:19 AM

Very nice!

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azure1961p
Postmaster
*****

Reged: 01/17/09

Loc: USA
Re: Rimae Petavius new [Re: SteelStar]
      #5683026 - 02/16/13 09:23 AM

There you go Jef - clean smooth finish of an object had through a classic instrument. Great sketch of the " road to the city" - really enjoy your polish .

Pete


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Jef De Wit
Carpal Tunnel


Reged: 03/06/09

Loc: Hove, Belgium
Re: Rimae Petavius new [Re: maroubra_boy]
      #5683041 - 02/16/13 09:30 AM Attachment (8 downloads)

Thanks all!

Quote:

That would have been quite a site, you in the square with a scope and sketching the Moon!




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mike73
super member


Reged: 05/01/12

Loc: UK Plymouth
Re: Rimae Petavius new [Re: Jef De Wit]
      #5683238 - 02/16/13 11:05 AM

Great sketch Jef, thats alot of detail for a 8cm frac.

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PeterDob
scholastic sledgehammer


Reged: 07/29/05

Loc: CarĂ¹, Italy
Re: Rimae Petavius new [Re: mike73]
      #5683365 - 02/16/13 12:06 PM

Hahahaaa!!! What a sight!!! I really admire you, Jef, and not only for this superb drawing! Actually, we astronomy-buffs should do that more often... pack our gear, go to the nearest town centre and install ourselves there, even when it's illuminated like a Christmas tree. Thanks for showing us the way!!!

Peter


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Special Ed
Postmaster
*****

Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: Rimae Petavius new [Re: PeterDob]
      #5683995 - 02/16/13 06:17 PM

Jef,

Great target, great sketch, and especially, great story. Keep bringing astronomy to the people.


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Andrev
Post Laureate
*****

Reged: 02/08/11

Loc: Montreal, Quebec, Canada
Re: Rimae Petavius new [Re: Special Ed]
      #5684094 - 02/16/13 07:17 PM

Jef.

That's a very good idea to go at this square surrounded by peoples. Great sketch my friend. Looks 3D for sure.

Andre.


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Jef De Wit
Carpal Tunnel


Reged: 03/06/09

Loc: Hove, Belgium
Re: Rimae Petavius new [Re: Andrev]
      #5684656 - 02/17/13 05:45 AM Attachment (7 downloads)



I found another sketch of Petavius that I never scanned because I wasn't happy with the result. It is the first time I sketched the same lunar object once in waxing and once in waning moon.
Side by side they make clear the sun is coming from another side. A lower sun in the sky (second sketch) makes also the shadows longer and more detail visible on the crater floor. I know... not really a scientific discovery, but still fine to have the proof on paper


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Andrev
Post Laureate
*****

Reged: 02/08/11

Loc: Montreal, Quebec, Canada
Re: Rimae Petavius new [Re: Jef De Wit]
      #5684676 - 02/17/13 06:09 AM

Jef.

What we can say comparing both, you gained lot and lot of skill with time.

Andre.


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frank5817
Postmaster
*****

Reged: 06/13/06

Loc: Illinois
Re: Rimae Petavius new [Re: Andrev]
      #5686001 - 02/17/13 09:29 PM

Jef,

It is nice to see these side by side. I went after these early and late lunation sketches of Petavius crater a few years back.
I like these two sketches and they really do look quite different at the eyepiece as you show them.

Frank


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azure1961p
Postmaster
*****

Reged: 01/17/09

Loc: USA
Re: Rimae Petavius [Re: frank5817]
      #5686048 - 02/17/13 09:51 PM

Jef I like the comparison. I've wanted to do a super close up study if that rille in the crater. Harold did a nice job with it too. It is an interesting feature. I like what your drawings reveal in terms of illumination of this feature. And your a brave man to set up in public like that - I always enjoy the quiet solitude of the exercise.

Pete


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