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Comet 21P/Giacobini-Zinner, 


            Alan Pham

Comet 21P/Giacobini-Zinner

Technical card

Resolution: 2500x1482

Dates:Aug. 20, 2018Aug. 27, 2018

Astrodon B Tru-Balance E-Series Gen 2: 30x60" (gain: 76.00) -15C bin 1x1
Astrodon G Tru-Balance E-Series Gen 2: 30x60" (gain: 76.00) -15C bin 1x1
Astrodon L Tru-Balance E-Series Gen 2: 210x60" (gain: 76.00) -15C bin 1x1
Astrodon R Tru-Balance E-Series Gen 2: 30x90" (gain: 76.00) -15C bin 1x1

Integration: 5.2 hours

Avg. Moon age: 12.54 days

Avg. Moon phase: 84.86%

Bortle Dark-Sky Scale: 7.00

Locations: Home, San Jose, California, United States

Data source: Backyard


Couldn't get much of the tail due to a smoky sky, severe light pollution, and a quarter moon. A bit frustrating processing this RGB data. 😤 Not too happy with the result, but it is time to go back to narrowband. 😄



Alan Pham
License: None (All rights reserved)


Comet 21P/Giacobini-Zinner, 


            Alan Pham