Sharpless 2-115 in Cygnus
with 10" f/3.9 Astrograph
Uploaded 9/24/23
| This
week I would like to share with you another new image, a deep
shot of the field of Sharpless 2-115 in Cygnus, which I beleive
to be one of the most beautiful areas of the sky I have ever
imaged. Look carefully at the central open cluster (OCL390) and
see that the majority of its stars are a gorgeous golden yellow
hue. A brilliant orange star accompanmied by a blue supergiant
is on its right edge completing the scene. The surrounding clumpy
red nebulosity is riddled with large numbers of dark veins and
bok globules,and the entire nebula is sitting in a field filled
with an ocean of red background nebulosity. Note as well the
huge long diagonal rift of nebulosity similar to a twisting rope
of licorice candy cutting across the top of the main nebula.
Finally, look at the Abell planetary to the upper right (A71)
and see that it for all the world resembles a face on spiral
galaxy with two complete arms! This nebula is actually not a
planetary but is a Stromgren sphere. Technical data: 10"
f/3.9 GSO astrograph, 8 hours of RRGB exposure time, Atik 16200
CCD, from Payson Arizona. |
Instrument: 10" f/3.9 Orion Astrograph Newtonian with Baader MPCC
Mount: Astrophysics 1200 QMD
CCD Camera: ATIK 16200
Guider: ASI290 w/80mm WO Zenithstar 81 piggyback refractor
Exposure: 8 hours HaRGB
Astronomik RGB Combine Ratio: 1: 1.05: 1.5
Location: Payson, Arizona, Elevation: 5150 ft.
Sky: Seeing FWHM = 3 arcsec , Transparency 9/10
Outside Temperature: 65 F
CCD Temperature: -30 C
Image Processing Tools:
Maxim DL6: Calibration, PixInsight: All Remaining processing, Photoshop CS2: Production finishing
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