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Contact information

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

Ursa Astronomical Association

Telescopic comet Pons-Winnecke - 11.4.2021 at 01.43 - 11.4.2021 at 02.05 Orimattila, Artjärvi, Tähtikallio Observation number 97945

Visibility I / V


7P / (Pons-Winnecke) (1819 III) A comet from the NEO Jupiter family was filmed on the second night of the April 2021 campaign. A comet was discovered by Jean Louis Pons on June 12, 1819, at the Marseille Observatory. The comet was again discovered by Friedrich August Theodor Winnecke at the Bonn Observatory on March 9, 1858. We photographed this comet a month earlier in March. When photographing the comet was 0.725au and comes to the nearest 0.441au on June 12, 2021. In Perihel the comet is May 27 and the sun is 1.234au. When measuring the brightness of a comet from the last image, no
obtained measured when Koma brightness.
1Picture. First image measured, 2021-04-10T 22: 43: 26UT 2459315.44682JDUT 18h22m29.26s + 08d09'03.9 "T16.465mag Std Dev 92.411 SNR24.735 FWHM5.320", JPL Horizon 22: 43: 26UT 18h22m29.11s + 08d09 '04 .7 "T16.101 mag.
2Picture. Last image measured, 2021-04-10T 23: 04: 35UT 2459315.46151JDUT 18h22m32.09s + 08d08'58.0 "N17.463mag Std Dev 77.055 SNR3.922 FWHM2.472", JPL Horizon 23: 04: 35UT 18h22m31.96s + 08d08 '58 .3 "T16.101 mag.
3Picture summary image according to the stars, fast movement is displayed. No other detectable asteroids below 21.7mag. TYC 1010-2506-1 v.11.84 stars used to calibrate the brightness measurement.



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Additional information
  • Observation target
    • Comet
  • Name of the observation target
    • 7P/ (Pons-Winnecke)
    • Erittäin heikosti näkyvä
  • Brightness in magnitudes
    • 16.5
  • Weather
    • Säätila erinomainen.
  • Title for the comet
    • Telescopic comet
Technical information

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

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