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Contact information

Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

Kaukoputkella näkyvä komeetta ATLAS - 10.4.2020 klo 22.07 - 10.4.2020 klo 23.00 Helsinki, Maunula Observation number 89827

Visibility III / V

Jorma Ryske, Etelä-Suomen kosmol. seura

Comet C/2019 Y4 (ATLAS) is disintegrated and preceding fragment is visible in this R-channel image. Fragment is 10" from comet's main optocenter towards PA 285°. Main image is 25x120s frame stack and two other 12x120s image stacks 30 minutes between.


Image 1) R filter 25x120s 2020-04-10 19:07UT
Image 2) R filter 12x120s 2020-04-10 19:07UT
Image 3) R filter 12x120s 2020-04-10 19:35UT


Image 4) Added strongly stretched version of Image 1. Three fragments can be seen, second fragment preceding first most behind fragment of 7" PA260° and third fragment preceding first most behind of 12" PA290°


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Additional information
  • Havainnon kohde
    • Komeetta
  • Kohteen nimi
    • C/2019 Y4 (ATLAS)
  • Kirkkaus magnitudeina
    • 9
  • Pyrstön pituus
  • 6 kaariminuuttia
  • Pään läpimitta
  • 2 kaariminuuttia
  • Sää
    • +2C, wind gusts
  • Komeetan otsikko
    • Kaukoputkella näkyvä komeetta
Technical information

TS 305/1200mm Newton, TS KomakorrF4, QSI690, Astrodon R, CEM60. FoV 9' x 7'. North up, east left.

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