Jump to content


Photo

Rimae Petavius

  • Please log in to reply
17 replies to this topic

#1 Jef De Wit

Jef De Wit

    Mercury-Atlas

  • *****
  • Posts: 2754
  • Joined: 06 Mar 2009
  • Loc: Hove, Belgium

Posted 14 February 2013 - 06:11 AM

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!

Attached Files



#2 Aquarellia

Aquarellia

    Viking 1

  • -----
  • Posts: 768
  • Joined: 27 Oct 2012
  • Loc: Provence, France

Posted 14 February 2013 - 06:57 AM

Nice cold story for this alive sketch

#3 niteskystargazer

niteskystargazer

    Gemini

  • *****
  • Posts: 3092
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 14 February 2013 - 12:12 PM

Jef,

Very Good sketch of Rimae Petavius :).

CS,KLU,

:thanx:,

Tom

#4 JimPie

JimPie

    Viking 1

  • -----
  • Posts: 522
  • Joined: 10 Nov 2007
  • Loc: S.E.Michigan

Posted 14 February 2013 - 01:37 PM

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

#5 frank5817

frank5817

    Cosmos

  • *****
  • Posts: 8423
  • Joined: 13 Jun 2006
  • Loc: Illinois

Posted 14 February 2013 - 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. :waytogo:

Well done, rimae and all

Frank :)

#6 maroubra_boy

maroubra_boy

    Vendor - Gondwana Telescopes

  • -----
  • Vendors
  • Posts: 531
  • Joined: 08 Sep 2009
  • Loc: Sydney, Australia

Posted 15 February 2013 - 08:00 AM

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

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.

#7 geminijk

geminijk

    Viking 1

  • -----
  • Posts: 890
  • Joined: 03 Apr 2008
  • Loc: Murfreesboro, TN

Posted 15 February 2013 - 09:05 AM

Great sketch!

John

#8 SteelStar

SteelStar

    Vostok 1

  • -----
  • Posts: 132
  • Joined: 08 Nov 2009
  • Loc: Oklahoma

Posted 15 February 2013 - 11:19 AM

Very nice! :cool:

#9 azure1961p

azure1961p

    Voyager 1

  • *****
  • Posts: 10363
  • Joined: 17 Jan 2009
  • Loc: USA

Posted 16 February 2013 - 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

#10 Jef De Wit

Jef De Wit

    Mercury-Atlas

  • *****
  • Posts: 2754
  • Joined: 06 Mar 2009
  • Loc: Hove, Belgium

Posted 16 February 2013 - 09:30 AM

Thanks all!

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

Attached Files



#11 mike73

mike73

    Vostok 1

  • -----
  • Posts: 165
  • Joined: 01 May 2012
  • Loc: UK Plymouth

Posted 16 February 2013 - 11:05 AM

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

#12 PeterDob

PeterDob

    Viking 1

  • -----
  • Posts: 869
  • Joined: 29 Jul 2005
  • Loc: Castelnovo ne' Monti, Italy

Posted 16 February 2013 - 12:06 PM

Hahahaaa!!! What a sight!!! :applause: 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!!! :bow:

Peter

#13 Special Ed

Special Ed

    Fly Me to the Moon

  • *****
  • Posts: 7064
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 16 February 2013 - 06:17 PM

Jef,

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

#14 Andrev

Andrev

    Skylab

  • *****
  • Posts: 4113
  • Joined: 08 Feb 2011
  • Loc: Montreal, Quebec, Canada

Posted 16 February 2013 - 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.

#15 Jef De Wit

Jef De Wit

    Mercury-Atlas

  • *****
  • Posts: 2754
  • Joined: 06 Mar 2009
  • Loc: Hove, Belgium

Posted 17 February 2013 - 05:45 AM

:thanx:

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 ;)

Attached Files



#16 Andrev

Andrev

    Skylab

  • *****
  • Posts: 4113
  • Joined: 08 Feb 2011
  • Loc: Montreal, Quebec, Canada

Posted 17 February 2013 - 06:09 AM

Jef.

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

Andre.

#17 frank5817

frank5817

    Cosmos

  • *****
  • Posts: 8423
  • Joined: 13 Jun 2006
  • Loc: Illinois

Posted 17 February 2013 - 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 :)

#18 azure1961p

azure1961p

    Voyager 1

  • *****
  • Posts: 10363
  • Joined: 17 Jan 2009
  • Loc: USA

Posted 17 February 2013 - 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






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics