K-Tec

first saturn images of the season

More
19 years 9 months ago #5175 by michaeloconnell
Replied by michaeloconnell on topic Re: first saturn images of the season

Oh, and if it wasn't for me, Mike, you wouldn't be vice chairperson


Oh, don't you worry, I won't let you forget that, not by a long shot! In fact, I know EXACTLY who is to blame for all this! :wink:

Please Log in or Create an account to join the conversation.

More
19 years 9 months ago #5176 by Seanie_Morris
Replied by Seanie_Morris on topic Re: first saturn images of the season

Oh, don't you worry, I won't let you forget that, not by a long shot! In fact, I know EXACTLY who is to blame for all this! :wink:


Who?

*innocence divine here*


:P

Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

Please Log in or Create an account to join the conversation.

More
19 years 9 months ago #5178 by dave_lillis
Replied by dave_lillis on topic Re: first saturn images of the season
Seanie,
You need to watch him, he'll be after your job soon... :lol:

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

Please Log in or Create an account to join the conversation.

More
19 years 9 months ago #5180 by michaeloconnell
Replied by michaeloconnell on topic Re: first saturn images of the season
No no, it's ok, I enjoy seeing Seanie doing all the work!
As vice-chair, I prefer to "delegate".
:)

Please Log in or Create an account to join the conversation.

More
19 years 9 months ago #5184 by dave_lillis
Replied by dave_lillis on topic Re: first saturn images of the season
Michael,
Getting back to planetery images, I was reading Suiters book on astro scope testing, and came across the

"red edge on one side of the planet and blue edge on the other side of the planet"

phenomena some of us webcamed last year when imaging the planets.

Bad news, it says that this is due to a decentering (sideways shift) of the optical compenents in the scope !!

He was talking about refractors but I'd bet that this translates into SCT scopes also , when you consider mirror flop/image shift etc, you can imaging how.

I noticed that after I recentered the secondary mirror relative to the tube using a vernier calipers, it was not nearly as bad as before, at the time I did this for collimation reasons.

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

Please Log in or Create an account to join the conversation.

More
19 years 9 months ago #5185 by michaeloconnell
Replied by michaeloconnell on topic Re: first saturn images of the season
Interesting.
Registax can compensate for it to a certain extent. However, it's obviously best to eliminate it from the optical system where possible.

Please Log in or Create an account to join the conversation.

Time to create page: 0.110 seconds
Powered by Kunena Forum