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Jon Greif

Location of Photo:

La Jolla, CA, USA

Date/Time of photo:

February 11, 2022, between 10 pm and midnight, PST


Takahashi FSQ-85ED with 0.85 Reducer, ZWO ASI533MC Pro imaging camera, Optolong L-Pro filter, ZWO 30 mm guide scope, ZWO ASI292MM mini guide camera, Rainbow Astro RST-135 mount, Ekos capture software on a Raspberry Pi 4B and Pixinsight 1.8.8 processing software on a Macbook Pro


IC 2118/NGC 1909 (also known as the Witch Head Nebula) is an extremely faint reflection nebula believed to be an ancient supernova remnant illuminated by nearby supergiant star Rigel (Orion's left foot). It lies about 900 light-years from Earth. The nature of the dust particles, reflecting blue light better than red, is a factor in giving the Witch Head its bluish color. The image is from last night, in the light of a waxing gibbous moon and Bortle 7 sky.