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Ursa Astronomical Association

Telescopic comet Schwassmann-Wachmann - 3.10.2021 at 03.30 Pieksämäki Observation number 101692

Visibility III / V

Timo Kantola, Ursa (Itä-Suomi)

I spent the DS night and as the last target of the night at half past four I thought I would still take a picture of the comet 29P / Schwassmann-Wachmann, even though Cartes reported the target with a brightness of 15.4mag. The surprise was quite when the big blob was in the middle of a 4 second focus image! After a short google, it became apparent that there had been an eruption in the comet about weekly on September 25:

Definitely follow the comet if the weather allows. I estimate the brightness to be about 10mag, and the size of the Koma to be about 50 "

First image of the body hour exposure in minute clips, another size 12 "F4 + Atik314L field of view and the false color image shows a thin (hydrogen cloud?) With a size of 2'40"

The comet is delayed at a distance of 5.9AU from the Sun between the orbits of Jupiter 5.0AU and Saturn 9.9AU.

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Additional information
  • Observation target
    • Comet
  • Title for the comet
    • Telescopic comet
  • Name of the observation target
    • 29P/Schwassmann-Wachmann
  • Brightness in magnitudes
    • 10
  • Tail length
  • 2.6 arc minutes
  • Coma diameter
  • 50 kaarisekuntia
Technical information

ASADDM60, SPX300F4, Atik314L, BaaderMPCC.

24x60s exposures

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