Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Fay on Nov 02, 2014, 09:24:26

Title: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Fay on Nov 02, 2014, 09:24:26
This is taken with QSI583ws and Leitz Telyt 180mm lens @ F4, 7nm ha filter

Next time out I will get OIII for it

(https://farm6.staticflickr.com/5616/15690461142_1cf3113dea_h.jpg)

Larger size

https://www.flickr.com/photos/moondust/15690461142/in/photostream/lightbox/
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: The Thing on Nov 02, 2014, 12:52:32
That's looking good Fay. I like the bokeh on the brighter stars, a real sparkle!
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: julian on Nov 02, 2014, 13:04:28
Nice image Fay
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Fay on Nov 02, 2014, 13:37:12
thanks.  hopefully ccolour will follow asap!!!!!!!!
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Canadian Roger on Nov 02, 2014, 13:51:18
Nice work, Faye.  That's some good glass you have there...do you have any mechanical aids to achieve critical focus, or do you turn the focussing collar by hand?

Also, when you say 15x600 and 7x1200, did conditions not allow 1200 second exposures, or are you using the shorter ones to try to retain detail in the brighter portions of the nebula?

Finally (well, at least for now!), what sort of exposure will you use for the OIII images?
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Fay on Nov 02, 2014, 13:56:01
Hello Roger. it is a good lens made in Canada, for the navy.  i have to manually focus and select the settings. well I just happened to do 600 secs first time around and then did 1200 and added them all together. OIII i will probably do 600 sec exposures.
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Canadian Roger on Nov 02, 2014, 14:42:45
After the OIII, will you be using an SII filter for the Hubble palette?
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Fay on Nov 02, 2014, 14:45:53
No will do bi colour, see how I go   
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: MarkS on Nov 02, 2014, 15:15:20
Very nice.  You've captured some subtle variations in there.

Mark
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Fay on Nov 02, 2014, 15:49:39
Thanks Mark
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Carole on Nov 02, 2014, 19:22:47
Great FOV Fay.  Lots more extended nebulosity than I can recall having seen in other images of the CN.

Carole
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Fay on Nov 02, 2014, 23:28:24
thanks Carole
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: JohnP on Nov 03, 2014, 14:06:28
nice Fay - very milky...
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Fay on Nov 03, 2014, 14:10:06
ive done a bit more processing  on it now, so little more defined  on FB
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: RobertM on Nov 03, 2014, 18:17:09
Good start Fay :)
Title: Re: NGC1499 Californian Nebula 15x600 and 7x1200
Post by: Fay on Nov 03, 2014, 22:29:01
Thanks Robert, i have processed a bit more since that picture, a bit sharper