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Contact information

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

Ursa Astronomical Association

Telescopic comet Shoemaker - 14.3.2020 at 22.38 - 14.3.2020 at 22.57 Orimattila, Artjärvi, Tähtikallio Observation number 89758

Visibility Unclassified


155P / (Shoemaker 3) The periodic comet of the Jupiter family was filmed on the second night of the March work. The comet was discovered on the Near Earth Asteroid Tracking (NEAT) search program on January 10, 1986. The discovery was made by Caroline and Eugene Shoemaker with a 0.46m Schmidt telescope at the Palomar Observatory, source GARY W. KRONK'S COMETOGRAPHY https://cometography.com/pcomets/155p.html . the comet was 1.2404au away, the nearest 1,026au on February 4, 2020. The comet is already moving away and clearly dimmer than when we filmed it in January 2020. In Perihel, the comet has been 15-28 November 2019. The next time the comet will be so well photographed 17 years from now, Outside the orbit of Saturn. 1Picture. stacked Average by comet. A little tail at 7 p.m.
2Picture. stacked Summit by the stars. The movement is poorly visible. Asteroid (31472) 1999 CT36 18.2mag, motion shown. (64308) 2001 UJ30 19.32mag, motion shown. (214652) 2006 SR75 20.30mag, motion shown. (426577) 2013 SL22 20.38mag, poorly visible? No other asteroids below 20.8 mag are shown.
3Picture. first image measured, 2020-03-14T 20: 38: 24UT 2458923.360000000JDUT 11h12m09.89s + 16d52'54.9 "N17.0mag Std Dev 52.894, JPL Horizon 20: 38: 24UT 11h12m09.80s + 16d52'53.5" T14.61mag.
4Picture. last image measured, 2020-03-14UT 20: 57: 12UT 2458923.37305JDUT 11h12m09.36s + 16d52'54.3 "N16.6mag Std Dev 41.476, JPL Horizon 20: 57: 12UT 11h12m09.38s + 16d52'55.2" T14.61mag. TYC 1430-1149-1 11.85mag stars used to calibrate the brightness measurement.



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Additional information
  • Observation target
    • Comet
  • Name of the observation target
    • 155P/Shoemaker
    • Heikosti näkyvä
  • Title for the comet
    • Telescopic comet
Technical information

Alluna RC16, C415 / 3320, SBIG 1001E, filter L, 10 x 120s

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