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Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

Binocular comet Wirtanen - 9.12.2018 at 23.35 - 10.12.2018 at 00.00 Fregenal de la Sierra, Espanja Observation number 79716

Visibility III / V

Ari Jokinen, Etelä-Suomen kosmol. seura

Comet Wirtanen photographed from E-eye's sky on December 9, 2018.
So nimble guy that 60s exposures made a line so I ended up with 30s exposures.

1. The image is aligned with the comet itself

2. This was treated as a Larson-Sekan filter, with the idea that the tail could be excavated, i.e. with the same technique as the other graphs in the Sky Guard. I used this for the first time. I had to learn and I don't know how I succeeded in that, but yes there is at least a little tail in the picture and maybe another tail, which e.g. Tapio Lahtinen's picture is quite clear

3. Raw video description of the session



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Additional information
  • Observation target
    • Comet
  • Name of the observation target
    • 46P/Wirtanen
    • Keskitaso
  • Title for the comet
    • Binocular comet
Technical information

RiDk 300, SBIG STL-11000M, 20x30s Light

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