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Comet C/2018 W2 (Africano), 


            Molly Wakeling

Comet C/2018 W2 (Africano)

Technical card

Resolution: 3873x2636

Dates:Oct. 5, 2019

Frames:Astronomik Luminance 2-inch Type 2c: 31x120" (gain: 120.00) -15C bin 1x1

Integration: 1.0 hours

Bias: ~100

Avg. Moon age: 7.19 days

Avg. Moon phase: 47.91%

Bortle Dark-Sky Scale: 7.00

Locations: East Bay Area, CA, Berkeley, CA, United States

Data source: Backyard


I don't currently have a light pollution filter, but I threw my color camera on the scope anyway with a luminance filter to help block un-focused UV & IR light. I haven't had success doing a double-process to have both comet and stars steady yet, but I'll keep playing with it and see what I can get! Not bad for imaging from the city without a light pollution filter! I'll also be making a GIF of it moving across the stars when I get a chance.

Currently it is in the constellation Aquarius, and was magnitude +10.0 when I imaged it.
Discovered last November by B.M. Africano at the Mt. Lemmon Observatory, the closest it drew to the sun was 1.5 AU (Earth-Sun distance) in early September. On Saturday night, it was moving against the background of stars at 6.9 arcminutes per hour, or the width of a full moon every 4.3 hours. It's on a hyperbolic trajectory, meaning that this is the last time it will visit the inner planets, having passed Earth at just under 0.5 AU away.



Molly Wakeling
License: None (All rights reserved)


Comet C/2018 W2 (Africano), 


            Molly Wakeling

In these public groups

Broadband under Bortle 7/8/9