Contact information

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

Ursa Astronomical Association

Telescopic comet LONEOS - 4.3.2017 at 23.47 Helsinki, Maunula Observation number 61710

Visibility I / V

Jorma Ryske, Etelä-Suomen kosmol. seura

Comet 315P / 2013 V6 (LONEOS) moves as a very dim target between Otava and Leijona. Despite the opacity, however, the comet clearly distinguishes between a small coma and a short tail. In the lower left corner is the galaxy IC2978 mag14.60, below the comet is the galaxy PGC37389 mag15.84. The brightness of the comet is of the same order. The diameter of the coma is 20 "and the tail 80" in the direction PA 240 °.



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Additional information
  • Observation target
    • Comet
  • Name of the observation target
    • 315P/LONEOS
    • Erittäin heikosti näkyvä
  • Brightness in magnitudes
    • 15
  • Tail length
  • 80 arc seconds
  • Coma diameter
  • 20 kaarisekuntia
  • Weather
    • -6C
  • Title for the comet
    • Telescopic comet
Technical information

SW 200mm / F4, Atik314L +, MPCC, CLS filter, CEM60. FOV 38'x 28 '. Exposures 31x90s = 46min from March 4, 2017 11:47 PM EET. North at the top, east at the left.

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