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Jupiter, November 16, 2012

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#1 Ibmelrod

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Posted 17 November 2012 - 09:06 PM

Hi all,

Weather and time permitted me a view of the King with the new scope. The subtle SPR region did not make it though the scanning though so I restored it as best I could with Paint.Net. Otherwise, I am pretty pleased with the view through the shiny new EON.

*I have adjusted the image gamma and contrast to reveal the original SPR and bring other features closer to the eyepiece view. Tricky business this!

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#2 Asbytec

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Posted 17 November 2012 - 09:28 PM

Mel, the scanned image appears too "bright" on my monitor.

#3 Ibmelrod

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Posted 18 November 2012 - 12:58 AM

Norme, looking at others drawings, I see what you mean. Thanks for the comment.

#4 Ibmelrod

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Posted 18 November 2012 - 01:21 AM

I have adjusted the contrast in the OP. It was way too bright.

#5 Asbytec

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Posted 18 November 2012 - 01:27 AM

Did you loose something in the scanning process, Mel? It's much better bright wise.

Ah, sorry, shouldn't spend time discussing scanners, but that you're out observing Jupiter in a very nice scope.

Well done, Mel. I look forward to seeing more of your work. I'm very curious about the EON 120.

#6 frank5817

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Posted 18 November 2012 - 01:41 AM

Mel,

Very nice Jupiter sketch. Like you I have a difficult time getting the brightness and contrast to be true to the sketch for Jupiter. When they are too light like this a camera in the daylight with a manual setting beats a scanner.
Nice work.

Frank :)

#7 stray1

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Posted 18 November 2012 - 03:24 AM

YES!

Mel's sketch accurately represents what I am currently seeing in my 17mm EP.

EQ bands.

A thin band above the upper EQ band.

And a definite "shading" in the northern hemisphere.

Great sketch!

:grin:

-stray-

#8 Special Ed

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Posted 18 November 2012 - 09:40 AM

Wow--lots of Jupiter sketches to see. Congratulations on the new scope, Mel. It looks like it will give you plenty of good views.

By 9:30PM your time, Jupiter is just barely above the soup. Try looking when it is a little higher.

Also, try adjusting the gamma (midtones) after you preview but before you make your final scan--it should help with the contrast.

#9 Ibmelrod

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Posted 18 November 2012 - 02:21 PM

Many thanks to all above for the comments and encouragement. I have adjusted the OP image to what seems a more realistic ep view. Sketching in the dark is quite the juggling act but has a gentle learning curve. I sure do appreciate the helpful advice.

@Norme, the Orion EON line were well regarded APO doublets with 80, 100 & 120mm (I think)objectives. Beautiful finish with 2-speed focussers at a pretty reasonable price.

Very shortly after mine was delivered, the line went missing from Orion's catalogue. I believe I was very lucky to get one. A prevailing rumour is that the Japanese supplier of the glass was a tsunami casualty. Who knows?

#10 Asbytec

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Posted 18 November 2012 - 10:29 PM

Mel, same here. Shortly after I bought my Orion 150 Mak they went missing, too. Go figure, it's a great scope, as well. Maybe they are just not popular, or are being bought by another distributor? Who knows. But, like you, I feel fortunate to have one. Had my eye on an EON.

#11 frank5817

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Posted 18 November 2012 - 11:14 PM

Mel,

Much better looks great.

Frank :)

#12 Chopin

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Posted 19 November 2012 - 10:26 AM

Excellent job capturing details in the bands. :waytogo:

#13 niteskystargazer

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Posted 19 November 2012 - 07:32 PM

Mel,

Nice sketch of Jupiter :).

CS,KLU,

:thanx:,

Tom






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