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Contains:  The star ζCep
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Comet 21P/Giacobini-Zinner, 


            José J. Chambó
Comet 21P/Giacobini-Zinner

Technical card

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

Imaging camera:Atik 383L+

Resolution: 1200x906

Dates:July 15, 2018

Integration: 0.0 hours

Avg. Moon age: 2.77 days

Avg. Moon phase: 8.46% job: 2220244

RA center: 333.608 degrees

DEC center: 57.954 degrees

Pixel scale: 4.295 arcsec/pixel

Orientation: 358.295 degrees

Field radius: 0.897 degrees

Locations: Hoya Redonda - Valencia (Spain), Enguera, Valencia, Spain

Data source: Traveller


Comet 21P/Giacobini-Zinner photographed on July 15, 2018. In this second image taken after one week and from more dark location the comet shows a enveloping greenish coma of 5' angular diameter with a tail 8' lenght. The brightest star is Zeta Cephei with magnitude 3.4, between it and comet can be peceived a faint nebulosty of redish emission, as well as a small red planetary nebula at image bottom.

Telescope GSO 8" N f/3.8 & Camera Atik 383L+.
9 min. total exposure.
From Hoya Redonda, Valencia (Spain).

More info at 



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

Sky plot

Sky plot


Comet 21P/Giacobini-Zinner, 


            José J. Chambó