Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: JohnP on Jan 18, 2012, 21:46:49

Title: First in a while..
Post by: JohnP on Jan 18, 2012, 21:46:49
Well finally blew off all the cowebs after about 4 months of having scope & mount stored in my shed. Mount is as stiff as anything - definitely needs stripping & regrease etc. Took this on Sunday night - actually surprised everything worked first time & that I could actually remember what cable went where... Not the greatest image - too noisy. Due to trees etc. only have a small window when I can get this - ended up with 24 x 5mins (shame they weren't at a dark site..) - ED80 + Atik16ic (normal setup) - OAG.

Cheers,  John.

(http://jpastronomy.co.uk/graphics/web/HorseHead.jpg)
Title: Re: First in a while..
Post by: Mike on Jan 18, 2012, 22:16:22
That's great John. I always love seeing those streamers behind the horsehead. Nice to see you are back to imaging again like Jim.
Title: Re: First in a while..
Post by: MarkS on Jan 18, 2012, 23:00:52
I love it John!

That image is so reminiscent of the famous picture of the Horsehead taken by the Palomar 200" Hale Telescope back in 1951 - one of my all time favorite images which inspired me as a kid.

see
http://palomarskies.blogspot.com/2010/03/astrophoto-friday-horsehead-nebula.html

Mark
Title: Re: First in a while..
Post by: Rocket Pooch on Jan 19, 2012, 07:44:12
Very nice John, up close as personal with the horsey!

Perfect round stars as well.
Title: Re: First in a while..
Post by: Jim on Jan 19, 2012, 08:32:22
That is nice John, I know how hard it is with the small chip size of the Atik to get the object centred.
Title: Re: First in a while..
Post by: Carole on Jan 19, 2012, 08:44:54
That's really good John.

Carole
Title: Re: First in a while..
Post by: JohnP on Jan 19, 2012, 12:38:10
Thank you All... Mark thks for posting link - not bad I suppose considering I am missing 196.8 inches of aperture & was imaging through mag 3.5 skies... After seeing that image makes we want to try again with bigger aperture from a dark site.

Jim - I think it was one of those lucky nights - I did a one star alignment on Aldebaran & then a goto IC434 & what you see in the image is exactly how it lined up on my chip - I didn't even have to mess with rotating etc. Doesn't happen very often but nice when it does.... :-)

Cheers again,  John
Title: Re: First in a while..
Post by: mickw on Jan 19, 2012, 12:46:04
Very nice John
Title: Re: First in a while..
Post by: JohnP on Jan 19, 2012, 16:35:56
cheers Mick...
Title: Re: First in a while..
Post by: Tony G on Jan 19, 2012, 19:10:52
Nice image John, HIGH FIVE!!!!!!!
And there was me thinking that I might get an image in here before you again. :(

Tony G
Title: Re: First in a while..
Post by: JohnP on Jan 19, 2012, 22:23:33
Thks Tony - Well it has been 4 months since the last..... Have you got your scope out yet in your new garden? John
Title: Re: First in a while..
Post by: Tony G on Jan 19, 2012, 22:42:50
Not quite yet, I'm having a small patio area laid so I'm not traipsing in mud, and the blinding was only laid today, but hopefully this time next week it will all be set up. Fingers crossed.  ;)

Tony G
Title: Re: First in a while..
Post by: Fay on Jan 20, 2012, 08:59:08
well done John, nice horse, nice round stars. hope you get out there a few more times now
Title: Re: First in a while..
Post by: RobertM on Jan 20, 2012, 15:00:36
Just need more subs to make it a really impressive image John, everything else looks perfec to me.

Robert
Title: Re: First in a while..
Post by: JohnP on Jan 20, 2012, 19:15:15
thks Fay & Robert....
Title: Re: First in a while..
Post by: JohnP on Jan 22, 2012, 19:17:56
Whilst you were all boozing it up & DSC I spent sometime sorting out my hard-disks etc. I happened across the images I took down at Les Granges with Fay, Chris & Jim in 2008 & decided to have a quick look at the Ha I took of the Horsehead for comparison with my image the opther day. I did a quick stack & stretch, upscaled image 200% in PS & a few little tweaks & then resized to 1024 (remember size of my CCD is 640 X 480) so upscaling image shows all the warts & noise. Have to say I am pretty gobsmacked - Unbelievable how much easier good clean data is to process. This image was taken with my entry level 16ic & cheapo ZS66....

Bloody hell I want to go to Les Granges again !!!!!!!!! :-(

(http://jpastronomy.co.uk/graphics/web/LesGrange_HorseHead_Reprocess.jpg)


Title: Re: First in a while..
Post by: MarkS on Jan 23, 2012, 10:42:05

John,

The Les Granges version looks even more like the Hale Telescope image! 
Plus, it's facing the right way  :cheesy:

Mark
Title: Re: First in a while..
Post by: JohnP on Jan 23, 2012, 10:59:03
Cheers Mark - Makes me think imaging in Bromley is not really worth the effort even with NB filters... I need to move... :-( (just have to convince wife & kids).

John.

PS - from this day forward my horseheads will always face LEFT...! :-)
Title: Re: First in a while..
Post by: mickw on Jan 23, 2012, 11:26:55
That really is a good result John
Title: Re: First in a while..
Post by: JohnP on Jan 23, 2012, 12:14:33
Thks Mick - reckon once you moved to your nice dark skies you should be able to get better with your kit... John
Title: Re: First in a while..
Post by: RobertM on Jan 23, 2012, 12:21:54
That's very nice John.

QuoteMakes me think imaging in Bromley is not really worth the effort even with NB filters

Get 5nm/3nm filters or even better a remote setup down at Ollys if you want colour :)  Persuading the wife to move to a dark site might not be an easy option especially your's has an affinity to shopping like mine does :roll:

Title: Re: First in a while..
Post by: mickw on Jan 23, 2012, 12:56:12
Quotehas an affinity to shopping like mine does

Ashford has loads of nice shops  ;)

Title: Re: First in a while..
Post by: RobertM on Jan 23, 2012, 15:31:44
Quote from: mickw on Jan 23, 2012, 12:56:12
Quotehas an affinity to shopping like mine does

Ashford has loads of nice shops  ;)


Don't worry, she does know that ;)
Title: Re: First in a while..
Post by: Fay on Jan 23, 2012, 20:36:41
Gosh John, that is good! my M31 was only 8x300 from there, no darks or flats!!!!!!!!!! I did about 5 images in a night there! because they were so short, none of this 10 hour malarkey
Title: Re: First in a while..
Post by: JohnP on Jan 23, 2012, 20:54:00
Thks Fay - My horsehead was also only 16 X 5mins No flats & darks (don't even think I knew what a flat was then...) - It is amazing how easy it is to process good data. Only took me 5 mins to process (& its not because of any new skills I have) - not the normal 6 hrs I spend on an image... :-(

Ohhh for good skies....