DocumentationGallery

Sh2-106 in Cygnus

Click Image for full size view
Warning: Full size images can be very large
By
Catalog
Obj Type
Location
Date Taken:
Don Goldman
Sharpless 106
Nebula
Sierra-Remote Observatories, Shaver Lake, CA
08-18-2007
Description

Sharpless 2-106 lies between Sadr and the Veil SNR in Cygnus.  At first glance, it appears like a bipolar planetary nebula.  That is what attracted my attention.  However, it is not a PN.  It is an emssion nebula. 600 pc distant and quite small at 0.5 pc long (~2000 and 1.6 light-years, respectively), and is ionized by an  O8 star, S106IR. More details can be found here based upon radio data.

2 hours of NIR-blocked Luminance and 70 min of each R,G,B,  augmented with 90 min of H-a and 90 min of OIII using Astrodon filters.  The upper circular object is deficient in OIII, most of which is concentrated in the bright portion of the lower object.  There is considerable surrounding nebulosity, as expected in Cygnus near Sadr.  The deep luminance show a large circular region centered around the object with less emssion than the surrounding areas.  You can see a bit of this arc in the colored version above.

An expanded image of the object is shown below:

 


Technical Details
Exposure Time:
~6.8 hrs
Camera:
SBIG STL11000
Telescope:
RC Optical 16" f/8.9 Ritchey-Chretien
Mount:
Software Bisque Paramount ME
© 2010 Don Goldman
Used with permission, No reproduction of these images are permitted without written approval from Don Goldman.