It's been a long time since I did planetary imaging. So, had a go with the C9.25 at f/10 and here's the result. Not very high res, but looks OK.
Also a pic of Omega Centauri. In B/W because I fouled up badly with taking the flat frames (took in jpg instead of RAW) so couldn't correct enough to make a colour pic. On the plus side, autoguiding at 1400mm (put a barlow on my guidescope) did wonders for guiding accuracy - probably down to +- 2 arcsecs.
Link to my homepage.
Go to the top of the list of new images.
TG
Jupiter with 3 moons & Omega Centauri
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tanguan2001
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Airconvent
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Hi TQ,
Seems your "bad" photos are way better than any I will ever be able to take!
Looking at how Chris' stacked Jupiter looks like, I'm thinking if you do some stacking on your, the details would be even more spectacular!
Seems your "bad" photos are way better than any I will ever be able to take!
Looking at how Chris' stacked Jupiter looks like, I'm thinking if you do some stacking on your, the details would be even more spectacular!
The Boldly Go Where No Meade Has Gone Before
Captain, RSS Enterprise NCC1701R
United Federation of the Planets
Captain, RSS Enterprise NCC1701R
United Federation of the Planets
"The universe is composed mainly of hydrogen and ignorance." -
tanguan2001
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Thanks.Airconvent wrote:Hi TQ,
Looking at how Chris' stacked Jupiter looks like, I'm thinking if you do some stacking on your, the details would be even more spectacular!
This was stacked. I used Registax 3 and selected somthing like 300+ frames from an AVI of 1000+ frames. Then used wavelets to bring out details.
TG
Great pictures TG !
I was wondering if the bluish color on the right side of Jupiter - is that an artifact of the optics or is that color actually really there ?
Also, just wondering about polar alignment since your pictures all seem sooo perfect. Do you polar align each night before you start, or do you have a system to quickly setup after you've aligned it once (like that permanent mount at the Science Centre) ? :-P I find it difficult to polar align each night out, cos after I finally get close, either the clouds have come in or I've fallen asleep on the telescope :-D
I was wondering if the bluish color on the right side of Jupiter - is that an artifact of the optics or is that color actually really there ?
Also, just wondering about polar alignment since your pictures all seem sooo perfect. Do you polar align each night before you start, or do you have a system to quickly setup after you've aligned it once (like that permanent mount at the Science Centre) ? :-P I find it difficult to polar align each night out, cos after I finally get close, either the clouds have come in or I've fallen asleep on the telescope :-D
Celestron 9.25SGT, Meade ETX125, Orion ED80
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tanguan2001
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Koh,
I have crayon marks on my driveway that tells me where to place the tripod legs. This minimises setup time. Applies to other things as well - I have marks on the counterweight shaft for getting the right balance each time, and focus location marks on the focuser of my guidescope.
Once set up on the marks, I aim at a star and let it track for about 15 mins - this tells me if any adjustments are needed - normally very minimal.
Having done this the alignment is not perfect. But with autoguiding and max 3-5 min exposures, it doesn't need to be. Over the period of 2-3 hrs that I usually acquire frames, there will be a small field rotation, but IRIS will align frames that have translation as well as rotation, so not a problem.
That blue edge to Jupiter - I don't know where it comes from - could be the optics, and might be corrected by adjusting the alignment of the blue frame, but I didn't do that. Anybody else seen anything like that?
TG
I have crayon marks on my driveway that tells me where to place the tripod legs. This minimises setup time. Applies to other things as well - I have marks on the counterweight shaft for getting the right balance each time, and focus location marks on the focuser of my guidescope.
Once set up on the marks, I aim at a star and let it track for about 15 mins - this tells me if any adjustments are needed - normally very minimal.
Having done this the alignment is not perfect. But with autoguiding and max 3-5 min exposures, it doesn't need to be. Over the period of 2-3 hrs that I usually acquire frames, there will be a small field rotation, but IRIS will align frames that have translation as well as rotation, so not a problem.
That blue edge to Jupiter - I don't know where it comes from - could be the optics, and might be corrected by adjusting the alignment of the blue frame, but I didn't do that. Anybody else seen anything like that?
TG