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Ursa Astronomical Association
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Ursa Astronomical Association

(5951) Alicemonet - 18.11.2022 at 23.22 - 18.11.2022 at 23.43 Orimattila, Artjärvi, Tähtikallio Observation number 111439

Visibility III / V

(5951) Alicemonet (1973 SJ5,1983 XE1,1986 TZ1) A main belt inner rim asteroid imaged on the first night of the 2022 November talcos. When we photographed comet C/2021 Y1 (ATLAS), this was included in the pictures. The Flora family asteroid was discovered by the American astronomer Edward LG "Ted" Bowell (b.1943) at the Anderson Mesa station of the Lowel observatory (699) on October 7, 1986. The asteroid is named after the American astronomer Alice K. (Babcock) Monet (b.1954). He was an astronomer at the Flagstaff Station of the US Naval Observatory and past chairman of the Dynamical Astronomy Section of the American Astronomical Society. Source MPC naming rationale Wikipedia . The asteroid has a size of 5.89 km and a rotation speed of 3.8871 h/r. Spectral class by family S (stone) . When photographed, the asteroid was at a distance of 0.8525au and at its closest on November 21, 2022 at 0.852au.

1Fig. first image of the series L120s measured, 2022-11-18T 21:21:25UT 2459902.38987JDUT 04h38m01.89s +17d04'18.6" 14.614mag Std Dev 1630.673 SNR195.757 FWHM3.387" ,JPL Horizon 21:09m01.35s +17d04'18.6" 17d04'17.9" 14.986mag .

2Fig. last image in series L120s measured, 2022-11-18T 21:42:04UT 2459902.40421JDUT 04h38m00.92s +17d04'20.6" 14.455mag Std Dev 1642.594 SNR227.610 FWHM3.906" , JPL Horizon 17d04'19.7" 14.986mag .

3Fig. sum picture L120s 1-11 from a stack of pictures, movement is visible. Comet C/2021 Y1 (ATLAS) 14.5 mag, motion visible. Asteroid (23968) 1998 XA13, motion visible. Asteroid (7763) Crabeels 17.261mag , motion visible . Asteroid (363113) 2000 XU1 19.204mag, motion visible. Asteroid (171158) 2005 GN110 19.396mag, motion visible. Asteroid 2015 XY366 19.520mag, motion not visible. Asteroid (269621) 2010 UX96 19.475mag, motion visible. There are no other asteroids below 20.0 mag in the picture.

TYC 1270-1000-1 11.63mag star used for brightness measurement calibration.

Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • (5951) Alicemonet
  • Seeing
    • Good
Technical information

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

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