Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  25 Cep  ·  LBN 494  ·  LBN 496  ·  LBN 500  ·  LBN 505  ·  LBN 508  ·  LDN 1175  ·  LDN 1178  ·  LDN 1182  ·  LDN 1184  ·  LDN 1186  ·  LDN 1188  ·  LDN 1191  ·  LDN 1193  ·  LDN 1195  ·  LDN 1196  ·  LDN 1201  ·  LDN 1202  ·  LDN 1203  ·  LDN 1204  ·  PGC 97260  ·  Sh2-140  ·  Sh2-141  ·  The star 25 Cep  ·  VdB153
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Sh2-140, Complexity in Layers, Alan Brunelle
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Sh2-140, Complexity in Layers

Revision title: Yikes! Submitted this without color adjusting for my eye-relief glasses!

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Sh2-140, Complexity in Layers, Alan Brunelle
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Sh2-140, Complexity in Layers

Revision title: Yikes! Submitted this without color adjusting for my eye-relief glasses!

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Description

I believe this is the last of the data that I collected with my WO z61mm doublet.  It was last because after doing all the pre-processing on the various targets I generated this summer and fall, this one was the one that struck me as the least interesting.  Yes, there is Sh2-140, one of the least interesting of the emission nebulae.  Mostly its a less than dramatic cloud edge that has been illuminate to a relatively low amount by some local hot star(s), likely the small cluster that sits just right of the "edge"  I can gather proximity to these stars because the edge displays a considable amount of reflection component in addition to emission signal.  However, the story here is one of uncovering layers of complexity during processing.  That of the data leading the way.  I do believe in a natural way, and not of desperation from me to try to make something of "not that much"!  Similar to my last image of

Sh2-155, The Cave Nebula, Sh2-154, LDNs 1212, 1211 & 1210 in Wide Field in OSC
, which is very close by, the area is rife with a low level of reflection components.  Yes there are several more distinct RN that are stand outs, but I am talking about those reflection components that create a haze over certain large areas of these fields in this area.  Having reviewed a good number of Sh2-140 images here on AstroBin, I fear that many of those who attempted this object were led by the object and ignored all that which is not Sh2-140.  Or were limited by narrow band bias and loss of much information.  While I did stretch this to a significant degree, I did not do so to an extreme.  In fact all the stretching I did came straight from my STF, where I manually (sliders) brought up the black point and destretched the auto to dial things back a bit.  In all the time I have processed, I have never ever taken an STF (albeit slight manual slider adjusted) image and just used it as a final image.  It was not the stretch that brought me so deep into this image.  Unlike the other that I have imaged from this locale of the sky, it was the star reduction that brought out the details, both dark and light in this frame.  Yes there is a lot of H alpha nicely placed throughout the frame.  Yes, there are some neat areas of dark dense molecular cloud that contrast the brighter backgrounds.  But it is the various reflection nebulosity that appear to reside in the foregound that came out for me.  It may be more accurate to label these features IFN, since that is what they look like.  But IFN typically is not so visible in areas of emission.  I believe the unique thing about this field is that the emission features here are so muted compared to typical.  I.e. reminiscent of the Gecko, for example

LBN 437 as it Lies in the Foreground on the Very Edge of Sh2-126
.  I believe that for LBN 437, it is the muted Ha backdrop that makes the Gecko stand out so well.   It is interesting to see how this IFN melds together with the dark nebulosity in places such as this clip of the field: image.png
Thus demonstrating how the denser regions of these molecular clouds look dark.  In fact, you can find that some of these dark and lighter clouds become brighter reflection nebulae if they come close to illuminating stars.  There are 3 or 4 such areas in this field of view.  In any case, we should not forget that IFN is in fact reflection nebula.  The key difference is that IFN is illuminated by the collective light of the galaxy and RN illuminated more directly by one, or maybe a few nearby stars.  This area is a very dense star field and it is the very strong star reduction that brought out these features.  Using Bill Blanshan's star reduction methods (the old suite, not the new one, which is baffling for me to use) I went through many iterations of gradual star reduction to find the percent reduction that gave me the best isolation of these clouds.  It is the gentleness of his method that allowed for success here.

I left this frame on its side for this presentation.  North is left.  West is up.  Though I am happy with the outcome, my excitement is more directed to the potential.  I need more time, as with all these 61mm optic data.  If I come back to this, it may be with my wider field setup or nearly the same field and larger aperature.  On the other hand, if I do a RASA treatment...

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    Sh2-140, Complexity in Layers, Alan Brunelle
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Title: Yikes! Submitted this without color adjusting for my eye-relief glasses!

Description: Leaves the Original looking purple. Something I do on occasion!

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Sh2-140, Complexity in Layers, Alan Brunelle