Contact information

Ursa Astronomical Association
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Ursa Astronomical Association

Telescopic comet Helin-Roman-Alu1 - 7.10.2015 at 00.38 Lumijoki Observation number 44112

Visibility II / V

Veijo Kallio, Oulun Arktos

Despite the lightened background of the northern lights, this comet distinguishes the tail in the image for at least a couple of arc minutes. In addition, numerous small and low-light galaxies stand out in the background; at the bottom right is IC 1681, m = 14.8 and at the bottom left is an elongated faint LED 90541, m = 16.3. In addition, the galaxy LEDA 144077, just to the left of the comet, is named in the Sky map.

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Additional information
  • Observation target
    • Comet
  • Name of the observation target
    • 117P/Helin-Roman-Alu1
    • Heikosti näkyvä
  • Tail length
  • 2 arc minutes
  • Weather
    • Revontulipurkausten laannuttua taustataivas jäi vielä vaaleahkoksi
  • Visibility of the comet
    • Telescopic comet
Technical information

Newton 40cm / 3.1 (Coma corrector + Reducer), CCD Atik 314L +

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