[AZ-Observing] Re: A nice view of the Veil Nebula region...
- From: Albert Barr <ajbarr@xxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Thu, 26 Jun 2014 12:42:10 -0700
Very nice David. Looks great.
Albert
On Jun 26, 2014, at 12:39 PM, David M. Douglass <dmdouglass@xxxxxxxxxxxxxxx>
wrote:
> I have been working on an Astronomical League project, the "Bright Nebulae"
> observing program. Interestingly, most of the objects are very very (as in
> "VERY") dim. But there are some "real" bright ones. Four of the "targets"
> for this program are in the Veil Nebulae region. Normally, I think we are
> all used to "seeing" (visual or imaging) the Veil objects separately, but a
> colleague of mine in Minnesota, who is also working on this project, gave me
> an idea. He imaged the region in "Ha" (Hydrogen Alpha Filter) and did a
> "mosaic' of the larger "region". I was very impressed with his results. You
> can see his image here:
> http://devenne.home.comcast.net/~devenne/ALBN/veil.html
>
> So, even though I have previous images of the East and West Veil areas, I
> decided to invest the time to image the entire region in Ha, and also create
> a mosaic. No small task! This is a large area, covering about 210x160
> ArcMins (3.5 x 2.6 degrees). With the 80mm (wide field), it took four
> separate images. Each image was a "stack" of 3 - 20 min exposures (it takes
> some time when working with Ha). That is a total of 4 hours of imaging last
> night. Finished up about 3:00 AM this morning (Yawn).
>
> I think I am pleased with the result. Thanks to David Venne for suggesting
> this (via his posted image).
>
> Here are three links:
> 1. Regular observation sheet, with image, and all the normal observing
> log information.
> Fully annotated.
> http://www.az-dahut.net/Obs-Log-Sheets/ngc-6992-06252014.jpg
> 2. Just the image, but with the annotations.
>
> http://www.az-dahut.net/Obs-Log-Sheets/veilnebulaarea2014-annotated.jpg
> 3. Just the image (for the purest in the group.).
> http://www.az-dahut.net/Obs-Log-Sheets/veilmergedpass2basic.jpg
>
> If you might be interested, please have a look. All comments are
> appreciated.
>
> David M. Douglass
> dmdouglass@xxxxxxxxxxxxxxx (secondary)
> david@xxxxxxxxxxxxxxx (main)
> Cell (602) 908-9092
>
>
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