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Ursa Astronomical Association
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00130 Helsinki

Ursa Astronomical Association

Telescopic comet ZTF - 13.8.2022 at 01.36 - 13.8.2022 at 01.59 Orimattila, Artjärvi, Tähtikallio Observation number 109200

Visibility III / V

Comet C/2020 V2 (ZTF) was imaged on the first night of the 2022 August talcos. A comet on a hyperbolic orbit was discovered by the Palomar Mountain ZTF variable object search program (I41 Palomar Mountain ZTF) on November 2, 2020. The Zwicky Transient Facility (ZTF) is a wide-field search program for supernovae and other rapidly changing objects based on the Samuel Oschin telescope, a 48" Schmidt telescope and a wide-field camera. The perihelion comet arrives on 2023-05-08 2.235au from the sun. When photographing the comet, it was 4.4146au away in Ursa Major, it will be closest to 1.855au on September 17, 2023. The comet will be at its brightest between June and September 2023 at an estimated T9-10mag We have imaged this comet several times.

1Fig. stacked 1-11 images L120s sum image according to stars, movement is visible. There are no asteroids below 24.0 mag in the picture.

2Fig. first image measured, 2022-08-12T 22:36:30UT 2459804.44201JDUT 10h10m42.75s +52d48'58.1" N14.929mag Std Dev 594.356 SNR100.468 FWHM9.179" ,JPL Horizon 22:36:30UT42d480m +52d480s '58.2" T13.401ag/N15.053mag .

3Fig. last image measured, 2022-08-12T 22:58:59UT 2459804.45762JDUT 10h10m43.29s +52d48'56.8" N13.976mag Std Dev 575.831 SNR133.435 FWHM9.348" ,JPL Horizon 22:58:59UT +52d48'56.8" '56.6" T13.401ag/N15.053mag .

TYC 3815-1164-1 12.03mag star used for brightness measurement calibration.

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Additional information
  • Observation target
    • Comet
  • Visibility of the comet
    • Telescopic comet
  • Name of the observation target
    • C/2020 V2 (ZTF)
  • Tail length
  • 49 arc seconds
  • Coma diameter
  • 26 kaarisekuntia
Technical information

Alluna RC16, C415/3320, Moravian G4-16000EC MkII, filter L, bin3 11 x 120s

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