Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  52 Cyg  ·  NGC 6960  ·  PGC 90374  ·  Sh2-103  ·  The star 52 Cyg  ·  Veil Nebula
Getting plate-solving status, please wait...
West Veil Nebula, Caldwell 34 in OHS and SHO, George  Yendrey
Powered byPixInsight

West Veil Nebula, Caldwell 34 in OHS and SHO

Getting plate-solving status, please wait...
West Veil Nebula, Caldwell 34 in OHS and SHO, George  Yendrey
Powered byPixInsight

West Veil Nebula, Caldwell 34 in OHS and SHO

Equipment

Loading...

Acquisition details

Loading...

Description

This is a narrowband OHS and SHO presentation of the West Veil Nebula (Caldwell 34), a part of the Cygnus Loop.
Integration time is approximately 10 hrs over two nights.  It is still a bit early in the season for my location for this object so imaging doesn't start until almost 11pm while waiting for it to clear my eastern horizon limit.  

While I continue to be please with my monochrome narrowband imaging, I am constantly amazed at the increase detail and color/spectrum variation that is available vs my prior result with an OSC imaging train.  I'm also quite happy with my Antlia 3nm NB filters (Ha, Sii, OIII).  the brightness of 52 Cygni is will managed without halos, at least relative to the halos that are present in my OSC version of this target. 

That doesn't mean that I don't recommend starting out with an OSC camera.  I think the astrophotography process has many variables and a steep learning curve, so starting with an OSC camera just makes sense as a way to minimize the variables at the start of the learning process.

I have created a mosaic in the past to put both the East and West Veil components in a single image.  Oddly, I found I didn't really care for that presentation of this object, preferring separate images of hte primary components.

Of note is that Pickering's Triangle is part of both my East and West Veil Astro images although the orientation of the image is not similar.  I find it difficult to say which palette (OHS or SHO) that I prefer, although for this object but I do lean toward the OHS version which I set as the final image.  

Please enjoy, like and let me know what you think in the comments.

CS,
Clayton


From Wikipedia:

The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.It constitutes the visible portions of the Cygnus Loop,  a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago. At the time of the explosion, the supernova would have appeared brighter than Venus in the sky, and visible in the daytime.  The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, and 36 times the area, of the full Moon).  While previous distance estimates have ranged from 1200 to 5800 light-years, a recent determination of 2400 light-years is based on direct astrometric measurements.  (The distance estimates affect also the estimates of size and age.) 

The Hubble Space Telescope captured several images of the nebula. The analysis of the emissions from the nebula indicates the presence of oxygensulfur, and hydrogen. The Cygnus Loop is also a strong emitter of radio waves and x-rays.  On 24 September 2015 new images and videos of the Veil Nebula were released by the Space Telescope Science Institute, with an explanation of the images.

In modern usage, the names Veil NebulaCirrus Nebula, and Filamentary Nebula generally refer to all the visible structure of the remnant, or even to the entire loop itself. The structure is so large that several NGC numbers were assigned to various arcs of the nebula.  There are three main visual components: 
  • The Western Veil (also known as Caldwell 34), consisting of NGC 6960 (the "Witch's Broom", Lacework Nebula, "Filamentary Nebula"[) near the foreground star 52 Cygni;
  • The Eastern Veil (also known as Caldwell 33), whose brightest area is NGC 6992, trailing off farther south into NGC 6995 (together with NGC 6992 also known as "Network Nebula") and IC 1340; and
  • Pickering's Triangle (or Pickering's Triangular Wisp), brightest at the north central edge of the loop, but visible in photographs continuing toward the central area of the loop.

Comments

Revisions

  • West Veil Nebula, Caldwell 34 in OHS and SHO, George  Yendrey
    Original
  • Final
    West Veil Nebula, Caldwell 34 in OHS and SHO, George  Yendrey
    C

Sky plot

Sky plot

Histogram

West Veil Nebula, Caldwell 34 in OHS and SHO, George  Yendrey