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Uploaded 21-Jul-20
Taken 20-Jul-20
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Dimensions1473 x 1920
Original file size2.45 MB
Image typeJPEG
Color spacesRGB
Date modified21-Jul-20 07:48
Comet C/2020 F3 Neowise Mt. Tolmie

Comet C/2020 F3 Neowise Mt. Tolmie

Here's an initial cut of Comet C/2020 F3 Neowise around midnight/morning of July 20/21. In spite of thin cloud the comet was still visible to the unaided eye, if you knew where to look. The ion tail is visible wiith some more detail of both tails around the head area. Through the camera the head of the comet was very green. I provided an inset of a single frame to show this. This is a work in progress. I would like to produce an image where these elements are integrated soon perhaps under darker skies than Mt. Tolmie's urban setting.

Camera: Nikon Z6 with FTZ adapter
Lens: Nikkor 300/4 AFS with 1.4 TC for an equivalent 420mm (cropped)
Sensor ISO: 1600
Exposure: Stack of 20 light images of 6 seconds at f/5.6; image of head single shot
Tracking: Skywatcher Star Adventurer
Processing: Stacking with Pixinsight (no calibration frames aligned by stars); Final adjustments Adobe Photoshop 2020