NGC281 Emission Nebula in Cassiopia
with NEXUS coma corrector
with 10" f/3.9 Astrograph @ f/2.9
Uploaded 1/10/24

 
Here
            is our latest shot of NGC281 in Cassiopiea to show the extensive
            outer nebulosity. Well over 10 hours with our 10 inch f/2.8 Astrograph,
            it not only reveals the wealth of dust lanes in the center, but
            on the left a few blue reflection nebula as well. The outer nebulosity
            is in the form of waves and ripples, and is concentric with the
            inner core of the nebula. Many golden and blue stars in the rich
            fall Milkyway fill the field, which is just over 2 degrees wide.
            Technical Data: 10" f/2.8 Newtonian Astrograph, 10h 15m
            total RRGB, Atik 16200 CCD, Payson, Az.

            
Select an image size for a larger view:

1600 x 1290


Instrument:  10" f/2.9 Orion Astrograph Newtonian with Nexus 0.75x CC
Mount:  Astrophysics 1200 QMD
CCD Camera:  ATIK 16200 
Guider: ASI290  w/80mm WO Zenithstar 81 piggyback refractor
Exposure:  10h 15m total HaRGB
Astronomik  RGB Combine Ratio:  1: .9: 1.6 = G2V  calibrated
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 3 arcsec , Transparency 9/10
Outside Temperature:  35 F
CCD Temperature:  -30 C
Image Processing Tools: 
Maxim DL6:  Calibration, PixInsight:  All Remaining processing, Production finishing: Photoshop CS2

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