LDN1622 - the "Boogey Man Nebula" in Orion
with 10" f/3.9 Astrograph
Uploaded 4/11/25

 

            
LDN1622 in Orion is
            actually a dark globule of dust superimposed on top of Barnards
            loop, which is glowing red in the background. In fact, there
            is no dark sky anywhere in this image, it is all nebulosity.
            Recording this shadowy figure is not easy, as it is very faint
            and required 4h of Luminance and 4h of 2x2 binned RGB data to
            get a noise free composition.

            
Technical Data: 10"
            f/3.9 Newtonian astrograph, Atik 16200 CCD, LRGB = 8 hours total,
            Payson, Az.

            
Select an image size for a larger view:

1600 x 1290


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:  5 F
CCD Temperature:  -30 C
Image Processing Tools: 
Maxim DL6:  Calibration, PixInsight:  All Remaining processing, Photoshop CS2: Production finishing 

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