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Jupiter sketch October 30 - 2012

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#1 Heidescoper

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Posted 01 November 2012 - 02:23 AM

hi all,

this night later I had a little better seeing.
I used a 200/1600mm Dobson from a good friend.
I saw different darkness inside the GRS !
The BA was not strong in contrast.
I measurded his position at II 170°.

30.10.2012, 22:50 UT, V 178x and 213x without filter

I 305° II 164°

I measured the GRS after sketching again by II 183° !

Bye Christian

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#2 Heidescoper

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Posted 01 November 2012 - 02:26 AM

here another sketch from the session:

30.10.2012, 21:35 UT, 200/1600mm Dobson V 178x

I 260° II 119°

Bye Christian

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#3 Jef De Wit

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Posted 01 November 2012 - 03:13 AM

Christian, fine sketches! Makes me want to sketch Jupiter too...

#4 Asbytec

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Posted 01 November 2012 - 03:48 AM

Christian, "I saw different darkness inside the GRS !" Outstanding. Yea, I see the same thing, but not sure if it's GRS detail or a contrast effect caused by the brighter band across the GRS.

To me, the GRS has a two toned appearance at lower power. I did manage the entire oval form at 300x, but did not note any internal features at that magnification.

Nice observation, Christian. Bye.

#5 Andrev

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Posted 01 November 2012 - 05:09 AM

Very very nice sketch. Look pretty good.

Andre.

#6 Heidescoper

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Posted 01 November 2012 - 06:57 AM

hi Norme, hi Andre,

thanks a lot.

I saw for several years darker parts inside
the GRS so I think it´s yet real too.

Jef, You got the good weather from West in Belgium
mostly hours before it come to me :).
Sharpen your pencil and take Your redlight and a paper :jump:.

Bye Christian

#7 Chopin

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Posted 01 November 2012 - 08:52 AM

Cristian, outstanding detail renderings here. I very much enjoy the shading you've managed to see in the GRS. You make me wish I had better seeing conditions. :grin:

#8 niteskystargazer

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Posted 01 November 2012 - 05:47 PM

Christian,

Very good sketches of Jupiter :).

CS,KLU,

:thanx:,

Tom

#9 frank5817

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Posted 01 November 2012 - 09:26 PM

Christian,

More fine sketches of Jupiter. :waytogo:

Frank :)

#10 Special Ed

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Posted 03 November 2012 - 07:14 AM

Christian,

Two fine observations. A very good luck at Oval BA and the super storm GRS. You saw a little of the turbulence following the GRS, too.

Your timing of the GRS at 183° matches the latest S&T info (184°).

Super storm Sandy has put a stop to astronomy here. We still have clouds and plenty of turbulence.






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