The Heart Nebula in Cassiopia - IC1805
9/29/23

 
A
            new shot of IC1805 and the surrounding region from our dark high
            altitude observatory in Happy Jack, Arizona. This 2.5h integration
            time image reveals a huge amount of background nebulosity around
            the Heart, delicate dark nebula and Bok globules in the core
            region, and a rich red and pink coloration. Stars are balanced
            for G2V so the nebula is very close to its correct colors. To
            the upper right is the Fish head nebula IC1795 and a very interesting
            feature on the upper left - a twisted ray of nebulosity cutting
            from the upper left corner to the middle of the Heart. This celstial
            Twizzler is reminicent of something I would expect to see in
            the Veil nebula. On the upper left edge we see a small group
            of tiny red nebula, this is Sharpless 2-194. Technical data:
            80mm f/4.6 Stellarvue SV80s, ASI071mc CMOS camera, 2.5h RGB.

            
Select an image size for a larger view:

1400 x 1200


Instrument:  SV80S Astrograph with Televue 0.8x FF
Mount:  Home Made GEM
Camera:  ZWO ASI071MC Pro Color CMOS
Guider: ZWO ASI120 mini  w/4" f/10 SCT guidescope
Exposure:  2.5h
Location:  Happy Jack, Arizona, Elevation:  7000 ft.
Sky:  Seeing FWHM = 1 arcsec , Transparency 9/10
Outside Temperature:  55 F

Image Processing Tools: 
Maxim DL6:  Calibration, Color Conversion
PixInsight:  DBE, Curves, Stacking
Photoshop CS2:  Cleanup

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