Dog Barks, JUPITER beckons - my best Joop with the c9.25?

[Robert_T]

what do you do when the dog barks and wakes you up at 3am... yell at it with bleary eyes, notice the sky is clear, ignore your headcold and drag out the scope to quickly cool while making coffee... that's what!

Turned out a fair bit of high cloud about but had some moment of better than average seeing, say 6-7/10, the best of which image resulting is attached. Again I've done the straight through Registax and Astra Image LR process on the left and the much more laborious splitting of avi into separate colour channels etc on the right. Not much in it, might actually prefer the left. These are optimised for my latop LCD so might not be ideal n CRT?

Still I'm pretty pleased with these. It's almost the same view and almost as good as my best shots back on Feb 18 with the Mewlon, but this time with the c9.25.

cheers,

[[1ponders]]

Good onya Robert. Great shot.

I made it outside myself last night, dodged clouds for a couple of hours until it started spitting around 10 :mad2: Glad someone managed to make the most of what look like was going to be a promising night at first.

[Striker]

Very nice image Robert.

I rolled off the roof on the observ last night only to see clouds all the way to the horizon....I then slammed the roof shut hurting my little pinky through frustraition....lol

Not getting my hopes tonight.

keep them coming Robert.

[matt]

Rob

I prefer the one on the left. Looks more detailed on my screen (CRT). Look at the festoons and small white ovals. A lot clearer.

Did you not use the IR/UV filter?

What capture settings?

Well done. Both images are very nice. Oh, and congrats on your showing in the current issue of AS&T. Good thing you listened to about 20 of us and sent it in, eh?:lol:

[Robby]

Stunning work!

[asimov]

Both excellent images, Congrats!

The left one is ever so slightly clearer/crisper/etc.

[Robert_T]

Thanks Guys, yes the weather has been a little unsteady to say the least... I wouldn't have given it a hope of being clear by 3am when I went to bed.



Yes Matt, IR/UV filter included - should have mentioned that. I've become something of a convert in my settings to the Mike and DP line of thinking.

This was with 1/20th sec exposure, 10fps, Gain set to 50%, Gamma 50% and Brightness 50%. By upping the gain and downing the Brightness I seem to be able to kill off those darn onion rings.

cheers,

[asimov]

Robert, I've been doing this too (up with gain/gamma, down with brightness) But I've been copping real bad centre burnouts, not sure how to overcome that, I usually have to tweak the contrast down a fair bit in registax after stacking to get rid of it. I think this is doing some harm to my images (loss of detail etc).

[iceman]

Really nice Robert. I agree the one on the left looks better the way you've presented them. I've found though, the RGB processing takes a less amount of frames to stack, and/or more sharpening sometimes, and even sometimes a different alignment area.

I've done RGB processing and been most unhappy with the result when compared with normal colour registax processing - and i've had to go back and process them again with a smaller alignment box, harder processed reference frame, and then stacked less total frames - only taking 100 in each channel.

and then the result was far better than the original.

I'd like to have a go at processing the avi to see if I could get it to come out better than your one on the left.. (PS: I didn't get the CD/DVD you sent last time?!)

[davidpretorius]

lovely work again. a dog woke me at 4 and so out i trotted to poor seeing.3/10

so i took a couple of videos. stack aprox 280 frames from 900, did a histo stretch.

gain 50%, gamma 50%, exp 1/50 whih i have used before without onion rings.

and thus, poor seeing will contribute to onion rings

[davidpretorius]

and here is 612 stacked from the same video with same settings for onion ring comparison.

i would say that there is little difference??

[Dennis]

Hi Robert

Wow - those are excellent images of Jupiter - did the dog get a bone as a reward?

Cheers

Dennis

[RB]

Another excellent result there Robert.
Well done to you and the dog.

Thanks for the info too Davip P.