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The Fiery Red California Nebula, Deep Blue Pleiades and a Green Comet 46P Wirtanen APOD 12/20/2018 | by TransientAstronomer
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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.

 

www.grandmesaobservatory.com

 

Grand Mesa Observatory, Whitewater (Purdy Mesa) Colo., U.S.A.

38.963365, -108.237225

12/17/2018 1:52-2:34am MDT

 

RGGB 300sec x 8

Camera: QHY367C

 

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

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Uploaded on December 17, 2018