Re: [APML] New M42 picture posted

["bert katzung" <katzung1@home.com>]

VERY nice image, Eric! How did you combine the images---that is, what
algorithm did you use to hold the detail in the trapezium when combining the
short exposure with the longer ones? If Bobby Middleton is listening in,
perhaps he could contribute his approach to this problem. I know Jerry has a
great (but complex) routine for masking. Is this the procedure you guys
used?  Thanks....

Bert

Bert Katzung
katzung1@home.com
www.astronomy-images.com

----- Original Message -----
From: "Eric Royer" <eroyer@club-internet.fr>
To: <astro-photo@seds.org>
Sent: Monday, 26 February, 2001 12:39 PM
Subject: [APML] New M42 picture posted


> Hello,
> I have a new M42 picture on my web site. I thought M42 was an easy target,
> but it is not. I had to combine a short exposure with longer ones to get
> detail in every part of the nebula. You can see the result at
> http://perso.club-internet.fr/eroyer/M42T200.html
> Elite Chrome 200
> 8" Newtonian f/4.6 with Vixen coma corrector. Manually guided.
> Composite of 3x 30min exposures and one 10 min for the central part.
>
> Any comments are welcome,
> Eric
>
>
> --  APML Archives at <http://www.system.missouri.edu/apml/>  ---
>                 Unsubscribe at <majordomo@seds.org>


--  APML Archives at <http://www.system.missouri.edu/apml/>  ---
                Unsubscribe at <majordomo@seds.org>