M4 and NGC6144
Globular cluster pair in Scorpius
Uploaded 5/29/25

 

            
This carefully composed
            image highlights the closest known globular cluster to Earth
            - M4 resting in a dark dusty void in the Milky Way. Notice that
            it is composed of blue and golden supergiants. To the upper left
            we find the smaller cluster NGC6144 immersed in the golden dust
            of LBN1103 - the Antares Nebula.

            
Technical Data: 10"
            f/3.9 Newtonian astrograph, Atik 16200 CCD, LRGB = 1h 24m 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:  1.4h hours RGB
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:  45 F
CCD Temperature:  -30 C
Image Processing Tools: 
Maxim DL6:  Calibration, PixInsight:  All Remaining processing, Photoshop CS2: Production finishing 

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