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Ursa Astronomical Association
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Ursa Astronomical Association

Binocular comet ZTF - 29.1.2023 at 01.34 Helsinki Observation number 111737

Visibility I / V

The conditions were not ideal, but the Weather Report promised that it would clear up a bit for a couple of hours. The moment was right, because a raft of clouds from the northwest covered the sky around two o'clock. Otava and Pohjantähti (mag. approx. 2) somehow stood out, so I pointed the camera almost to the zenith half-blindly between Otava and Pohjantähti. Two frames were hit well enough by the comet and I combined them to improve the noise. After all, stars up to magnitude 9 stood out with the camera. Judging from the top 7-star group as a reference, the brightness of the comet is about as bright, if not even brighter.

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Additional information
  • Observation target
    • Comet
  • Visibility of the comet
    • Binocular comet
  • Name of the observation target
    • C/2022 E3 (ZTF)
  • Brightness in magnitudes
    • 5
  • Weather
    • Utuinen, valkoista LED-valosaastetta

Technical information

D7100 4.0 sec at f/6.3, 140mm, ISO 500

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