Seagull Nebula

Paul Haese · #1 19-01-2009, 09:13 PM

Not well centered but I was testing the goto on the EM400 with the HP and pocket sky. Not bad for a one star sync. Next time I will move it to the more appropriate position. Lots of nebulosity can be seen anyway.

Click here

Comments welcome.

Dennis · #2 19-01-2009, 11:03 PM

Nice work Paul. Did you fix your auto guiding problems, as the stars look nice and round for 15 minute subs?

Cheers

Dennis

Paul Haese · #3 19-01-2009, 11:23 PM

Still have not sorted it Dennis. It is spasmodic and I have come to the conclusion that it is likely to be flexure as the problem. I have made plans and purchases to correct the problem though. Only after I have these items in hand and done the relevant tests will I know for sure.

Thanks so much for asking.

Hagar (Doug) · #4 20-01-2009, 05:17 PM

Paul, Nice image. Resolved the Nebulosity quite well.
I would be surprised if it is flexure in the guide platform. It is not like it is moving huge amounts when guiding and the scopes concerned aren't that heavy. I would be more inclined to thing it's a PEC correction problem. I don't know whether you can turn PEC off but it may be worth a go if you can. The Tak mount shouldn't need it to maintain accuracy with active guiding.

Just a thought.