The Fiery Red California Nebula, Deep Blue Pleiades and a Green Comet 46P Wirtanen APOD 12/20/2018
This image was featured on APOD 12/20/2018: apod.nasa.gov/apod/ap181220.html
Over the past couple months Comet 46P Wirtanen has been moving closer to us on it's current orbit around the Sun. Yesterday 12/16/2018 was it's closest approach to Earth, and it also happened to be close to some very beautiful deep sky objects, the Pleiades and California Nebula. This image captured at Grand Mesa Observatory highlights this beautiful scene taken in the early morning hours of 12/17/2018.
Grand Mesa Observatory, Whitewater (Purdy Mesa) Colo., U.S.A.
12/17/2018 1:52-2:34am MDT
RGGB 300sec x 8
Gain 2850, Offset 170, Calibrated with flat, Dark & Bias
Optics: Rokinon 135mm F2 Telephoto Lens @ F4
Focusing: David Lane's Reveal Focus Filter
Mount: Piggyback on 12" RC, Paramount ME
Image Acquisition software Maxim DL5
Pre Processed in PixInsight, Deep Sky Stacker
Post Processed in Photoshop, Straton