Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  LDN 1299
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Dobashi 3729, Aka LDN 1299 and some other obsure designations..., Alan Brunelle
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Dobashi 3729, Aka LDN 1299 and some other obsure designations...

Revision title: With star improvement and better stretch.

Getting plate-solving status, please wait...
Dobashi 3729, Aka LDN 1299 and some other obsure designations..., Alan Brunelle
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Dobashi 3729, Aka LDN 1299 and some other obsure designations...

Revision title: With star improvement and better stretch.

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Description

I have been reviewing Aladin, on the lookout for reflection nebulae that I might get images of.  In this particular time of year, and with luck (really?), I fell upon this object.  It is rarely presented on AstoBin with intention.  But it is not that far from the PacMan Nebula, and thereby it gets imaged in wider field images of that nebula.  Some are nice, but resolution sometimes fails on those wide fields.  Here, I present a rather narrow field of view with my small sensored QHY5III462C, using IR cut and UV cut filter, which then operates as a OSC camera.  I had hoped to push the stretch on this one to see if I could place this object within embedded IFN.  But the wind kept me a bay and I only got 68 usable 90 second subs out of this.  These small cameras have very low well depth, so I went with gain zero on this to not saturate the nearby not-that-big stars.  I wish I was able to get 10 times the subs and also at better guiding.  But given the low probability of seeing this again this season, here it is!

I would like to point to @David Koslicki's fine image of "Pacman nebula (and friends!) in HaLRGB and @Antonio F. Sánchez's image titled "NS2, Magakian 13, LDN1299" that includes a fine writeup with descriptions of literature explanations for this object that mostly seem to get it wrong.  I agree with Antonio on that point.  I imaged this because I wanted reflection nebulae and I believe that is what this is.  It is the result of the stars that are partially embedded in this smallish cloud of dust that appears as a loose ball with chambers that highlight various sections of reflection.  The colors here are mostly blue, but I could detect a bit of red, so there may be some emissions going on here.  But I believe the stars associated with this object are too small and cool to generate the UV induced emission from hydrogen, etc. at a level that would cause this to be rated as an emission nebula.  These stars also cannot seem to clear their immediate environment of the dust, which is typical of the more dramatic bright star clusters that we typically image.  This nebula appears to have a high percentage of radio sources.  It also has a couple young stellar objects.  It also has what Simbad lists as an Interstellar Medium Object.  Hmm, not sure that this means.  But it is defined as something that is not a star.  Maybe an interstellar ferry that moves aliens between the stars in this neighborhood?  The nebula contains what is listed as a star cluster.  Certainly it is an obscure designation.  The fact that there are not many stars visible in the NIR or IR, and that there are not many YSO, means that this is not really a hotbed of activity.   I am hoping this narrow field of view offers a little better resolution and detail than is available via the wide field images.  I do believe that I could have produced better if my hfr on guiding was half of what I was able to get.  And a lot more subs would have allowed me to collect the IFN environment a bit better.  But if you look up the images I refer to above, you will get the picture...

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