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Image of the day 10/05/2018

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    HFG 1, PK 136.3+05.5, 


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    HFG 1, PK 136.3+05.5

    Imaging telescopes or lenses: Orion Optics UK CT10

    Imaging cameras: Atik 4000

    Mounts: Skywatcher AZ EQ6 GT

    Guiding telescopes or lenses: Omegon Modul Finder 50/230

    Guiding cameras: Lacerta M-Gen

    Focal reducers: Tele Vue Parracor 1.15

    Software: Guide 9.0  ·  Artemis Capture  ·  Pixinsight 1.8

    Filters: Astronomik LRGB 1.25" Type IIc  ·  Astronomik O III 12nm 1.25"  ·  Astronomik Ha 12nm CCD EOS Clip Filter

    Accessory: Atik EFW2-1 9x1.25"

    Dates:Sept. 30, 2018

    Astronomik H Alpha 12 nm 1.25": 60x600" bin 1x1
    Astronomik LRGB 1.25" Type IIc: 64x300" -10C bin 1x1
    Astronomik O III 12nm 1.25": 174x600" bin 1x1

    Integration: 44.3 hours

    Darks: ~20

    Flats: ~120

    Bias: ~150

    Avg. Moon age: 20.13 days

    Avg. Moon phase: 70.83% job: 3366601

    RA center: 3h 2' 41"

    DEC center: +64° 54' 18"

    Pixel scale: 1.148 arcsec/pixel

    Orientation: 2.174 degrees

    Field radius: 0.424 degrees

    Resolution: 1885x1877

    Locations: Homeobservatory , Roding, Bayern, Germany

    Data source: Backyard


    HFG 1 steht für Heckathorn, Fesen, Gull. Das sind die Namen der Astronomen die den Nebel 1982 entdeckt haben.Es handelt sich hierbei um einen sehr Lichtschwachen, jedoch Flächenmäßig relativ großen Planetarischen Nebel im östlichen Teil des Sternbildes Cassiopeia.
    Die Flächenhelligkeit beträgt 23,7 mag. Im Zentrum des Nebels entdeckten Astronomen ein
    Doppelsternsystem, dessen hellere Komponente (V664 Cas) ein Veränderlicher Stern ist.
    13,7 mag hell, Amplitude 1,1 mag in 14 Stunden.
    Erst 2009 wurde ein Kometenartiger Schweif mit ca. 5 Bogenminuten Breite und ca. 20
    Bogenminuten Länge entdeckt.
    Der etwa 15 Bogenminuten Große Nebel leuchtet nur schwach im Licht des zweifach
    Ionisierenden Sauerstoff (OIII). Der Schweif ist noch um einiges schwächer und leuchtet
    Im Spektrum des ionisierenden Wasserstoff (Halpha).
    Die Daten sind zwischen 18. August und 16. September 2018.

    HFG 1 stands for Heckathorn, Fesen, Gull. These are the names of the astronomers who discovered the fog in 1982. It is a very faint, but relatively large area
    Planetary nebula in the eastern part of the constellation Cassiopeia.
    The surface brightness is 23.7 mag. In the center of the nebula astronomers discovered
    Binary star system whose brighter component (V664 Cas) is a variable star.
    Amplitude 1.1 mag in 14 hours.
    Only in 2009 was a comet-like tail with about 5 arc minutes wide and about 20
    Arc minutes discovered length.
    The approximately 15 arc minute Great Mist only glows weakly in the light of the double
    Ionizing oxygen (OIII). The tail is still weaker and shining
    In the spectrum of ionizing hydrogen (Halpha).
    The dates are between 18th August and 16th September 2018.



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    HFG 1, PK 136.3+05.5,