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Image of the day 02/23/2018

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    Sh2-174 (LBN 598) Valentine Rose Nebula, 



    
        

            Marcel Drechsler
    Sh2-174 (LBN 598) Valentine Rose Nebula
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    Sh2-174 (LBN 598) Valentine Rose Nebula

    Technical card


    Dates:Feb. 13, 2018Feb. 14, 2018Feb. 15, 2018

    Frames:
    Baader f/2 Highspeed 2" H-Alpha Filter: 333x100" (gain: 139.00) -40C bin 1x1
    Baader f/2 Highspeed 2" OIII Filter: 256x100" (gain: 139.00) -40C bin 1x1
    Baader Luminance 2": 120x30" (gain: 139.00) -40C bin 1x1

    Integration: 17.4 hours

    Darks: ~100

    Flats: ~100

    Bias: ~200

    Avg. Moon age: 28.27 days

    Avg. Moon phase: 2.40%

    Bortle Dark-Sky Scale: 4.00


    Basic astrometry details

    Astrometry.net job: 3811971

    RA center: 23h 47' 5"

    DEC center: +81° 0' 46"

    Pixel scale: 1.264 arcsec/pixel

    Orientation: 101.839 degrees

    Field radius: 1.025 degrees


    Resolution: 4656x3520

    Locations: Sternwarte am Bärenstein, Bärenstein, Sachsen, Germany

    Data source: Backyard

    Description

    Sh2-174 is the most northern Sharpless object. Sh2-174 is an unusual ancient planetary nebula. Usually the white dwarf can be found very near the center of the planetary nebula. But in the case of Sh2-174 it off to the right. (It is the very blue star near the center of the blue gas). This asymmetry is due to the planetary nebula's interaction with the interstellar medium that surrounds it.

    Comments

    Author

    Marcel_Drechsler
    Marcel Drechsler
    License: Attribution-NoDerivs Creative Commons
    146426
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    Sh2-174 (LBN 598) Valentine Rose Nebula, 



    
        

            Marcel Drechsler