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Jon Greif

Location of Photo:

La Jolla, CA, USA

Date/Time of photo:

January 30, 2022, at 10 pm PST


Takahashi FSQ-85ED with 0.85 Reducer, ZWO ASI533MC Pro imaging camera, 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


The Orion Nebula (aka Messier 42, M42)) is a diffuse nebula situated south of Orion's Belt in the constellation of Orion. It is one of the brightest night sky objects and is visible to the naked eye, even in a light polluted sky, as the "middle star" of the sword which hangs from Orion's belt. It is 1,344 light-years away and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light-years across and has a mass of about 2,000 times that of the Sun. In this wide field image you can also see the Running Man Nebula (Sh2-279), below and to the left of M42 -- picture the running man lying on his back and running toward the upper right corner of the image. The image is a stack of 60 three-minute exposures (two hours of integration time).