Event between (472235) Zhulong and star GA0720:05332119 with event index number of 2310034
Geocentric closest approach at 2026/01/10 09:32:12 UTC
J2000 position of star is 14:53:43.7 -17:25:38
Equinox of date position of star is 14:55:06.1 -17:31:33
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 29 degrees from the moon.
Moon is 53% illuminated.
Apparent brightness V=21.9
Object is 32.8 AU from the Sun
and 33.3 AU from the Earth.
Apparent velocity is 19.7
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 109 seconds.
The 1-sigma cross-track error in the shadow position is
1345 km.
The object has an absolute magnitude Hv=6.5
Diameter=295.1 km assuming a 5% albedo -- 15.3 sec chord
Diameter=120.5 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is 5:2EEE
Star training set for 472235, (2026/01/10 09:37UT) Object RA Dec mag sep mel Spica 13:26:34.1 -11:17:47 1.0 22.33 7 27Bet Lib 15:18:24.7 -09:28:38 2.6 9.83 34 PPM 229408 14:53:19.2 -18:27:40 6.2 1.03 29 PPM 229513 14:57:47.2 -16:54:17 7.5 0.88 29 PPM 229487 14:56:46.0 -17:32:50 9.7 0.38 29 472235 14:55:11.3 -17:31:56 15.6 29 Positions are for equinox of date
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 472235, (2026/01/10 09:37UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 22.33 7 27Bet Lib 15:17:00.3 -09:22:59 2.6 9.83 34 PPM 229408 14:51:51.3 -18:21:19 6.2 1.03 29 PPM 229513 14:56:19.8 -16:48:04 7.5 0.88 29 PPM 229487 14:55:18.4 -17:26:35 9.7 0.38 29 472235 14:53:43.7 -17:25:38 15.6 29 Positions are for J2000
Event circumstances last updated at 2024/06/18 21:23:52 UT
Marc W. Buie, Southwest Research Institute