Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Rocket Pooch on Nov 13, 2004, 19:39:00

Title: A Horse and Crab Nebula
Post by: Rocket Pooch on Nov 13, 2004, 19:39:00
Quick process of the Horse Head Nebula (no Ha used) and Crab Nebula.  Both need to be worked on :smile:  They have worms.


(http://www.jumpers4goalposts.org.uk/images/Astronomy/Trash/hh_20041113a.jpg)

(http://www.jumpers4goalposts.org.uk/images/Astronomy/Messier/M1_20041113.jpg)

Title: A Horse and Crab Nebula
Post by: Whitters on Nov 13, 2004, 22:23:00
Nice one Chris, What did you use to take the images?
Title: A Horse and Crab Nebula
Post by: JohnP on Nov 13, 2004, 23:06:00
Tremendous...... :smile:

I love the 'horse head' - I have to get that - I may need to borrow your LP filter though.

John
Title: A Horse and Crab Nebula
Post by: Rocket Pooch on Nov 14, 2004, 00:58:00
Hi Paul,

It was the Skywatcher piggy backed onto the LX90 mitt vedge again at prime with a LPR filter.  I was surprised to see how big the horse head was, it would never have fitted if I'd used the LX90.  

Hmm
Title: A Horse and Crab Nebula
Post by: Rocket Pooch on Nov 14, 2004, 02:06:00
Image fixed: -

(http://www.jumpers4goalposts.org.uk/images/Astronomy/Nebula/hh_20041113_final.jpg)

[ This Message was edited by: csuddell on 2004-11-13 18:06 ]
Title: A Horse and Crab Nebula
Post by: JohnP on Nov 14, 2004, 02:29:00
Wow! Even better - How did you fix the dark shadows under the stars?

John.
Title: A Horse and Crab Nebula
Post by: Whitters on Nov 14, 2004, 11:15:00
A very nice image Chris. Have you been out this evening?
Title: A Horse and Crab Nebula
Post by: Rocket Pooch on Nov 15, 2004, 17:31:00
No I did not go out Alec had a football match at 9am in Benfleet so we have to leave at 8am.

I removed the shadows using the rubber stamp in photoshop.  You can do it with the pre-stacked frames using a van critteron (or something like that) filter but it would involve selecting and processing every frame selerately.

So I cheated.
Title: A Horse and Crab Nebula
Post by: JohnP on Nov 15, 2004, 17:43:00
Chris,

I came across this S/W which might be of interest:

English Instructions here:

http://www.petevasey.btinternet.co.uk/help.html

Software (French Web Page) here:

http://www.astrosurf.com/hfosaf/fr/tdownload.htm

Cheers,  John

Title: A Horse and Crab Nebula
Post by: Rocket Pooch on Nov 15, 2004, 21:55:00
I'll give that a go.