Saturn - with issues.

[legion48]

I took a dozen or more avi's of Saturn on the 31st. I used 2 different Toucams, a x2 barlow, a x4 barlow, I shot at 5fps and 10 fps. I pretty much mixed it up as much as I could, except for using the one scope (Skymax 150 Pro) but they all ended up with this strange area on the lower left hand limb. Is this a sign of poor collimation I wonder?

[Ant]

I think you need to align the red/green/blue channels in registax.

Never done it myself, but I suspect a small nudge on one of the channels will sort that.

Apart from that it's a cracker! I do miss colour!!!

Ant

[legion48]

I'd tried that Ant. I always do an RGB align after stacking but it still persist. Nudging the blue has no effect.

[beamish]

I think I had the same problem, . I put it down to collimation in the end. At least I blooming hope it was cos' I've just spent the best part of tonight sorting it out !!

Karlo

[Ant]

Just about the only other thing it can be is collimation!

Hope mine's aright, I've never collimated a mak before.

Good luck!

Ant

[astromerlin]

Hi, Nice image. I've been trying to get an image like this for ages well, a whole month as I am a newby. My image is always out of focus no matter how much time I spend trying to get the focus right. The main thing I have noticed with the images I've captured over the last month is that they always have a red hue showing above one of Saturn's poles and a blue hue on the other. I use an RGB align to fix the image but still out of focus.

I have been trying to collimate the scope (Skywatcher 250P) and although the latest images are better than the previous, perhaps I have not got it right yet. It would be handy if someone could say if this kind of affect is due to collimation errors.

Still, very impressed with your image.

Cheers

John

[legion48]

Thanks John. I'm not sure if your problem is collimation or not. Why not post an image on the board and ask the question? I'm sure someone will be able to give you the answer.

[astromerlin]

Hi Tony, I have in the imaging section, see: Imaging Saturn Help Needed.

Havn't had that particular question answered though. I expect that someone is going to get their ear chewed off at the autumn star party though, I still have plenty of questions. lol

Cheers

John

[Dangerous-Dave]

Good shot Tony. IIRC it's possible to get ghosting from astigmatism, dodgy collimation and atmospherics as well as mis-alignment of colour channels. You should be able to eliminate them one by one.