Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: JohnP on Aug 19, 2012, 22:10:10

Title: Centre of Heart neb ic1805 - Bromley
Post by: JohnP on Aug 19, 2012, 22:10:10
Took this last night after a day out at sunny Whitstable with the kids... Actually totally knackered & ended up falling asleep till gone 3.00am so got more subs than I had planned for :-) Anyway details as follows:

Atik 314L+ at -5degC (It was damn hot last night)
ED80
7nm Baader Ha
Off Axis Guider
15 X 10mins
No darks, Flats or Bias - Just a quick process & stretch in Pshop...

I love this neb - the centre is so intricate with lots of twists & swirls - always reminds me of a gnarled old tree...I also got a few subs on Crescent which I will process & post up later...

Cheers,  John

(http://jpastronomy.co.uk/graphics/OAS/ic1805-rev2.jpg)
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: MarkS on Aug 20, 2012, 05:35:15

Very nice.  You're right about the swirling clouds - they really do look good.  The dust clouds have also come out very well. 

The image as a whole looks very clean, contrasty and noise-free.

Mark
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: JohnP on Aug 20, 2012, 09:34:43
Thks Mark - Appreciate comments - It's amazing what you get when you fall asleep on the job... ;-)  John
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: MarkS on Aug 20, 2012, 10:11:31
Quote from: JohnP
It's amazing what you get when you fall asleep on the job... ;-)  John

I was doing the Helix Nebula last night.  I set it all running at 11:30pm then fell asleep in a chair in the conservatory until 5am.  However I did wake up at 1am, so I went outside for a quick check.

I had already checked the scope wouldn't collide with the tripod or my equipment table during the night.
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: Fay on Aug 20, 2012, 13:04:51
Trust you dont always fall asleep on the job, John! ;)

you are taking some nice images with your new camera John. some more nice detail to the right of centre, as well, that has a lot more you could bring out 
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: RobertM on Aug 20, 2012, 18:01:19
Looks really good John but is the black a bit clipped (looks like that on my monitor).

So the secrets out - you produce these images in your sleep under thought control :)

Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: JohnP on Aug 20, 2012, 21:00:09
Thks Fay & Robert.

Fay - I tried not to push it too hard in the processing to keep the noise down - On my 24inch monitor I can see tons of detail so didn't want to push anymore.

Robert - Are you sure it is not your monitor - I definitely don't think its clipped (at least not according to Phshop). It may be that it is a little too dark but again I was trying to be careful with noise. Below is a marginally brighter image - maybe this is better on your display. Let me know?

Thks for comments,  John

(http://jpastronomy.co.uk/graphics/OAS/ic1805-rev4.jpg)
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: RobertM on Aug 20, 2012, 21:40:11
Hi John,

I think you might be right about my monitor.  I think I've historically made that comment quite a lot before, possibly unjustifyably, and so I'm thinking the same thing.  In fact after I posted I remembered that you'd got yourself a well decent monitor so it should be right (I know you're fussy about that type of thing!).  May be it's time to get a decent monitor or get this one set up correctly with a Spyder or the like.

Robert

Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: Fay on Aug 20, 2012, 21:43:51
that looks good on my screen Robert.
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: MarkS on Aug 20, 2012, 21:47:36
Looks absolutely correct on my monitor.

Mark
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: JohnP on Aug 21, 2012, 08:21:27
Thks Fay/ Mark for clarification - John
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: The Thing on Aug 21, 2012, 19:25:15
Looks super on my monitor. Lovely capture John.

Want to borrow a Spyder Robert?
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: JohnP on Aug 21, 2012, 19:54:32
cheers Dunc - appreciate that - John
Title: Re: Centre of Heart neb ic1805 - Bromley
Post by: RobertM on Aug 21, 2012, 21:08:25
Could be a good idea Duncan, I might be able to appreciate the posted images a bit more :)