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Astrometry.net job: 2881325
RA center: 19h 59' 36"
DEC center: +22° 42' 57"
Pixel scale: 0.485 arcsec/pixel
Orientation: 358.364 degrees
Field radius: 0.209 degrees
Resolution: 1824x1824
Data source: Backyard
Belichtungsarbeit : Wolfgang Mandl -- PixInsight Processing : Franz Gruber
Spiegelteleskop:
16 Zoll f4,5 Newton Eigenbau Standort : Brentenriegel / Sieggraben - Burgenland
Kamera: Canon EOS 400Da
Belichtung:
6 x 900 sec H_alpha
6 x 900sec OIII
800ASA / Herbst 2011
Reprocessing: 25. Aug. 2019
Allgemein:
Im Zuge des Experimentes wurde das Objekt M27 - Hantelnebel auch mit Schmalbandfilter aufgenommen.
Schmalbandfilter wie OIII und H_alpha lassen nur Wellenlängen des sichtbaren Lichtes bei 501 nm und 656 nm auf den Sensor auftreffen.
Diese Emissionslinien können dem ionisiertem Sauerstoff (blau-grün) und Wasserstoff (rot) zugeordnet werden.
Diese Gase werden von einem Weißem Zwerg zentral zum Leuchten angeregt.
Dieser physikalische Vorgang ist im Bild deutlich erkennbar.
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