Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Fay on Feb 20, 2012, 11:59:05

Title: NGC 2244 from Mark's
Post by: Fay on Feb 20, 2012, 11:59:05
I did not want to do ha of Rosette again, and had intended to do OIII. trouble was, I cannot bring it into focus using the QSI/Leitz.

I could have gone elsewhere, but as the sky was so good & there were so many stars, i was not sure i was on my alignment star as they are so small using the lens as usual, & had to hunt for the Rosette. i did not want to spend any more time looking for a subject when alignment could be wrong.

9x900 QSI/Leitz, 7nm ha

(http://farm8.staticflickr.com/7205/6909102441_70bf5c3308_b.jpg)
Title: Re: NGC 2244 from Mark's
Post by: Rocket Pooch on Feb 20, 2012, 12:43:21
It needs O3 and S2, then its a proper image :-) good though....
Title: Re: NGC 2244 from Mark's
Post by: Fay on Feb 20, 2012, 12:44:59
I will have to do OIII with another method & combine
Title: Re: NGC 2244 from Mark's
Post by: JohnP on Feb 20, 2012, 12:56:18
lovely widefield Fay... John
Title: Re: NGC 2244 from Mark's
Post by: Fay on Feb 20, 2012, 13:36:03
thanks John, not as intended, but will blaze on!
Title: Re: NGC 2244 from Mark's
Post by: The Thing on Feb 20, 2012, 15:17:24
That is very nice Fay. You must get your filters sorted for this combination as based on this the results will be superb.
Title: Re: NGC 2244 from Mark's
Post by: RobertM on Feb 20, 2012, 19:21:24
I know what you mean Fay but you have to agree that it's come out very well !  What are you young to do about the Sulphur and Oxygen - it would be nice to be able to add those.

Robert
Title: Re: NGC 2244 from Mark's
Post by: Fay on Feb 20, 2012, 19:38:38
well i will setup the QSI with the ZS66, for OIII, possibly Sulphur
Title: Re: NGC 2244 from Mark's
Post by: MarkS on Feb 20, 2012, 20:05:27

That is stunning Fay! 
So much contrast and faint wispy stuff.
You must be well pleased.

Mark
Title: Re: NGC 2244 from Mark's
Post by: Fay on Feb 20, 2012, 20:09:33
Yes, thanks Mark, will have to sort colour out, hopefully
Title: Re: NGC 2244 from Mark's
Post by: RobertM on Feb 21, 2012, 08:16:06
Fay, are your NB filters not parfocal or nearly so ?
Title: Re: NGC 2244 from Mark's
Post by: Fay on Feb 21, 2012, 08:37:46
Well the ha is Baader & the rest Astronomik.  All will be ok with other setups & another lens, but with the Leitz, even with ha, inifinity is the focus point, no room to spare, scrapes through by the skin of its teeth.
Title: Re: NGC 2244 from Mark's
Post by: RobertM on Feb 21, 2012, 09:59:06
The bandwidth difference of the filters might cause a problem if you did a NB palette.  The Baader is 7nm, are the Astronomiks 12nm ?  If that's the case then the wider bandwidth will cause larger stars.
Title: Re: NGC 2244 from Mark's
Post by: Fay on Feb 21, 2012, 10:55:47
Yes I have a full set of 12nm Astronomik.  so the Astronomik OIII is 12nm? probably
Title: Re: NGC 2244 from Mark's
Post by: PhilB on Feb 22, 2012, 06:13:56
Nice image, Fay. Lovely wide field too.
Title: Re: NGC 2244 from Mark's
Post by: Whitters on Feb 22, 2012, 07:07:18
One of my favourite objects, lovely image Fay.