Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Rocket Pooch on Feb 21, 2010, 19:07:30

Title: Very poor Rosette
Post by: Rocket Pooch on Feb 21, 2010, 19:07:30
Hi,

This is a 6x10 minute stack ED80 QSI583 Skywatcher FF, no darks, flats or bias, of the Rosette in Ha, taken from swampville campsite, my guiding was all over the place, in the morning I found out my mount level had changed (must have been the excellent road building).

(http://farm3.static.flickr.com/2751/4376783230_2f39f4bc3c_b.jpg)
Title: Re: Very poor Rosette
Post by: JohnP on Feb 21, 2010, 19:18:43
looks 'king good to me..... love the fov - John
Title: Re: Very poor Rosette
Post by: Fay on Feb 21, 2010, 21:56:24
Well, i would be well pleased with that Chris. I think it is great!

My guiding was well off too, must have been the uneven ground.
Title: Re: Very poor Rosette
Post by: Tony G on Feb 21, 2010, 22:20:24
How can you be disappointed with an image like that. :-?
I would be more hacked off that someone was cleaning my caravan carpet with Chilli Bean soup, while I was out in sub zero temperatures, taking great images. ;)

Tony G

PS.........3 (great images) out of 3
Title: Re: Very poor Rosette
Post by: MarkS on Feb 22, 2010, 05:32:39

Chris,

That looks good to me - very crisp detail there.

Mark
Title: Re: Very poor Rosette
Post by: Carole on Feb 22, 2010, 08:19:00
I don't know why you describe this as "poor", I think it's a very good Rosette.
Especially considering
Quoteno darks, flats or bias

Carole

Title: Re: Very poor Rosette
Post by: Mike on Feb 22, 2010, 09:47:42
It's an excellent Rosette. I'd be chuffed with that.
Title: Re: Very poor Rosette
Post by: Mac on Feb 22, 2010, 09:49:57
Nice and crisp.

what are you using to stack the image, and what are the settings you are using.?

I would have sent you my rosett so you could combine the images, but i forgot to reset t :roll:he chip to full size.
Title: Re: Very poor Rosette
Post by: RobertM on Feb 22, 2010, 09:58:08
That's a very good Rosette Chris, nice and sharp.  A smidgen of drift maybe due to the PA changing through the night but I certainly can't see any traces of poor guiding from that frame size.  I must say I'm impressed with the flattener, it seems to have done a really excellent job.

Robert
Title: Re: Very poor Rosette
Post by: Rocket Pooch on Feb 23, 2010, 11:24:38
Hi all,

Thanks for the kind comments, but I really do know I could have done a lot better with this, the guiding went odd after the 1st 3 frames and the raw data was about 20% of what I would expect, but it gives me a benchmark for next year.

Mac, I stacked this in AIP, but Maxim and AA will dot he same, it was a Sigma combine. 

Chris


P.S. Tony you will get the bill.