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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

Binocular comet Iwamoto - 24.2.2019 at 23.30 - 25.2.2019 at 00.05 Järvenpää Observation number 81416

Visibility III / V

Toni Veikkolainen, Keski-Uudenmaan Altair

The clouds had given way appropriately at dusk so I decided to go photograph Iwamoto. The movement of the target in the sky had slowed and stacking with respect to the stars was possible without the comet stretching. The tripod had been erected in a reasonably load-bearing solid project and apparently weighed only slightly at the time of filming. The subject showed a green coma but no tail. After the drive home, the Skywardens then arrived but it didn't bother me anymore.

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Additional information
  • Observation target
    • Comet
  • Name of the observation target
    • C/2018 Y1 (Iwamoto)
    • Keskitaso
  • Brightness in magnitudes
    • 7
  • Coma diameter
  • 12 kaariminuuttia
  • Weather
    • Selkeää, länsituulta ja hieman lämpöasteita.
  • Visibility of the comet
    • Binocular comet
Technical information

Canon EOS 600d mod + Nikkor 300mm f / 2.8, total exposure 30 min, as tracking device Astrotrac TT-320X

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