[AZ-Observing] Re: Faint nebulosities surrounding M42

Frank,

The exposures ranged from 5 seconds to 10 minutes.  My camera is anti 
blooming but even with 15 second exposures the trapezium shows a little 
blooming with my camera.

The trick I do is to use photoshop to feather portions of bright areas from 
short exposure images on top of the bloomed or saturated parts of the 
longer, deeper images I took.  I don't know how you can do it with a non 
anti-blooming camera, though.  It may not be possible if the blooms wipe out 
the whole picture.  A camera like mine does really good on a picture like 
this but on the faint galaxies it's not as good.


Jon Christensen

----- Original Message ----- 
From: "Frank Martin" <fmartin@xxxxxxxxx>
To: <az-observing@xxxxxxxxxxxxx>
Sent: Friday, December 16, 2005 8:20 AM
Subject: [AZ-Observing] Re: Faint nebulosities surrounding M42


> Jon, beautiful shot!  Great job.  I tried shooting it also with my E210 
> and
> my ST8E.  I was taking 120 sec. exposures and got so much bleeding from 
> the
> bright stars (which most of them are) that I can't even use it.  How long
> exposures did you use to stack and is your 1100 an anti-blooming camera? 
> My
> ST8E is not an anti-blooming.  I could only run 15 sec. without getting
> blooming that would wipe out the whole picture, but if I only run 15 sec. 
> I
> get way to much noise to use them.
>
> Thanks,
> Frank Martin
>
> -----Original Message-----
> From: az-observing-bounce@xxxxxxxxxxxxx
> [mailto:az-observing-bounce@xxxxxxxxxxxxx]On Behalf Of Jon Christensen
> Sent: Thursday, December 15, 2005 9:37 PM
> To: EVAC -- The List
> Cc: az-observing@xxxxxxxxxxxxx
> Subject: [AZ-Observing] Faint nebulosities surrounding M42
>
>
> Hello fellow Arizona stargazers,
> This is a photo of the Orion Nebula I took out at Vekol the night of
> December 4th/5th.  My goal for this picture was to concentrate on bringing
> out the faint nebulosities that surround the nebula.  I got a hint of them
> with last year's picture and I've been waiting a year to have another go 
> at
> it and see what I found.
>
> http://members.cox.net/jonc97/images/astro/nebula/m42_2005.htm
>
>
>
> Happy Holidays,
>
>
>
> Jon Christensen

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