Contact information

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

Ursa Astronomical Association

Telescopic comet ZTF - 8.9.2021 at 23.38 - 9.9.2021 at 00.20 Orimattila, Artjärvi, Viestikallio Observation number 101089

Visibility I / V

Jorma Ryske, Etelä-Suomen kosmol. seura

Comet C/2021 E3 (ZTF) is another dim mag 16.5 comet so quite challenging to observe also because it's in star rich area in Milky Way in constellation Hercules. Good "second light" object for new remote controlled observatory. Coma 15", tail 25" towards PA 90°.

Image 1) 20x2min exposure, tracking comet, stacked to comet optocenter, LPS filter, FoV 12'x10', north up, east left


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Additional information
  • Observation target
    • Comet
  • Title for the comet
    • Telescopic comet
  • Name of the observation target
    • C/2021 E3 (ZTF)
  • Brightness in magnitudes
    • 16,5
  • Tail length
  • 25 arc seconds
  • Coma diameter
  • 15 kaarisekuntia
  • Weather
    • 12C
Technical information

TS 305/1200mm Newton, TS KomakorrrF4, QSI690, bin2, filter Hutech IDAS LPS-P2, CEM60. North up, east left.

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