Visibility III / V
(7763) Crabeels (1990 UT5,1994 RE1) A mid-main belt 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 asteroid was discovered by Belgian astronomer Eric Walter Elst at the ESO La Silla Observatory (809 European Southern Observatory, La Silla) on 16 October 1990. Elst has found a total of 3868 asteroids and comet/asteroid 7968 Elst-Pizarro. Source Wikipedia https://en.wikipedia.org/wiki/Eric_Walter_Elst . The asteroid got its name from the Dutch, Antwerp organist Henri Crabeels (b. 1904). The size of the asteroid is 7.79 km. Spectral class spec_B=>L . When photographing, the asteroid was at a distance of 1.9000au and at its closest on November 29, 2022 at 1.887au.
1Fig. first image of the series L120s measured, 2022-11-18T 21:21:25UT 2459902.38987JDUT 04h38m50.19s +16d55'48.8" 16.871mag Std Dev 257.545 SNR34.090 FWHM3.2" ,JPL Horizon 21:21.21m50.19s +16d55'48.8" 16d55'48.3" 17.261mag .
2Fig. last image in series L120s measured, 2022-11-18T 21:42:04UT 2459902.40421JDUT 04h38m49.41s +16d55'47.8" 16.961mag Std Dev 236.670 SNR31.320 FWHM3.845" , JPL Horizon 21:402h49.41s +16d55'47.8" 16d55'47.3" 17.261mag .
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 (5951) Alicemonet 14.986mag, movement is 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 19.475 mag, movement is visible. There are no other asteroids under 20.0 mag in the picture.
TYC 1270-1000-1 11.63mag star used for brightness measurement calibration.