NGC2451 & NGC2477
Double Cluster in Puppis
Uploaded 3/28/24

 
This
            magnificent contrasting pair of open clusters in southern Puppis
            was a perfect fit for the RASA on a night of exceptional transparency
            and darkness. This pair of clusters is pretty much due south
            of M46/47 and on a dark night is easy to confuse the two groups
            because of thier clusters similar appearance. My late friend
            Steve Coe once told me he calls these clusters the "False
            M46-M47". Take a look with binoculars at both pairs and
            you too will see what he meant! Technical Details: 8" f/2
            RASA, ASI071mcpro, 20 mins total, Happy Jack Arizona.

            


            
Select an image size for a larger view:

1400 x 1200


Instrument:  RASA 8" f/2
Mount:  Home Made GEM
Camera:  Color CMOS OSC
Guider: ASI mini  w/80mm piggyback refractor
Exposure:  20m 
Location:  Happy Jack, Arizona, Elevation:  7000 ft.
Sky:  Seeing FWHM = 2 arcsec , Transparency 9/10
Outside Temperature:  25 F

Image Processing Tools: 
Maxim DL6:  Calibration
PixInsight:  Alignment, Stacking, Star Removal
Photoshop CS2:  Curves, Color Correction, Cleanup

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