Sharpless 2-155, The Cave Nebula in Cepheus
with 10" f/3.9 Astrograph
Uploaded 11/24/20

 
This
            extremely faint nebula in Cepheus lies not too far from the border
            to Cassiopiea. Complete with both emisssion nebulosity, reflection
            nebulosity and dark obscuring nebula, this stunning object has
            an incredible variety of detail and color. Photos with the Schmidt
            camera years ago revealed very little here, but this new image
            shows it better than Ive ever recorded it before. This is with
            the 10 inch f/3.9 Orion astrograph and a total of 4 hours of
            exposure time.

            
Select an image size for a larger view:

1400 x 1200


Instrument:  10" f/3.9 Orion Astrograph Newtonian with Baader MPCC
Mount:  Astrophysics 1200 QMD
Camera:  ZWO ASI071MC Pro Color CMOS
Guider: ZWO ASI mini  w/80mm piggyback refractor
Exposure:  4h RGB+OIII+Ha
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 2 arcsec , Transparency 9/10
Outside Temperature:  45 F

Image Processing Tools: 
Maxim DL6:  Calibration, Color Conversion, aligning, stacking
PixInsight:  Saturation Curves
Photoshop CS2:  Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup

HOME   GALAXIES     EMISSION NEBS     REFLECTION NEBS   COMETS  
   GLOBULARS     OPEN CLUST     PLANETARIES     LINKS