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Comet C/2017 S3 PANSTARRS in outburst, 


            José J. Chambó
Comet C/2017 S3 PANSTARRS in outburst

Comet C/2017 S3 PANSTARRS in outburst

Technical card

Imaging telescope or lens:GSO Newton 8" f/4

Imaging camera:Atik 383L+

Resolution: 1200x900

Dates:July 5, 2018

Integration: 0.0 hours

Avg. Moon age: 21.36 days

Avg. Moon phase: 58.32% job: 2145385

RA center: 3h 23' 2"

DEC center: +59° 15' 7"

Pixel scale: 4.293 arcsec/pixel

Orientation: 357.968 degrees

Field radius: 0.894

Locations: Vallés - Valencia (Spain), Vallés, Valencia, Spain

Data source: Backyard


Image of comet C/2017 S3 (PANSTARRS) taken during an outburst that happened at the beginning of July 2018, in wich its brightness increased from magnitude 12 to 9 meanwhile its coma expanded so from 2.5 to 5 arcminutes of appearent size (nearly from 150.000 to 300.000 Km. real diameter). The intense greenish tone of coma suggest that major part of emitted material is about C2 gas (diatomic carbon).

Telescope GSO 8" N f/3.8 & Camera Atik 383L+.
14.5 min. total exposure. Non-composite stacking.
Locally from Vallés, Valencia (Spain).

More info at 



José J. Chambó
License: None (All rights reserved)

Sky plot

Sky plot


Comet C/2017 S3 PANSTARRS in outburst, 


            José J. Chambó

In these public groups

Comets Imaging