Event between (456826) 07TH422 and star GA1120:02005594 with event index number of 2287977
Geocentric closest approach at 2025/04/17 19:57:59 UTC
J2000 position of star is 06:18:46.3 +23:12:26
Equinox of date position of star is 06:20:15.4 +23:11:44
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 165 degrees from the moon.
Moon is 80% illuminated.
Apparent brightness V=22.7
Object is 30.6 AU from the Sun
and 30.9 AU from the Earth.
Apparent velocity is 16.8
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 458 seconds.
The 1-sigma cross-track error in the shadow position is
4215 km.
The object has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 10.9 sec chord
Diameter=75.3 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 456826, (2025/04/17 19:58UT) Object RA Dec mag sep mel Betelgeuse 05:56:32.5 +07:24:35 0.4 16.79 157 Alhena 06:39:10.4 +16:22:32 1.9 8.13 158 9 Gem 06:18:31.3 +23:43:48 6.1 0.67 166 PPM 095769 06:20:54.8 +23:15:44 7.7 0.15 165 456826 06:20:18.5 +23:11:42 16.7 165 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 456826, (2025/04/17 19:58UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 16.79 157 Alhena 06:37:42.8 +16:23:57 1.9 8.13 158 9 Gem 06:16:58.7 +23:44:27 6.1 0.67 166 PPM 095769 06:19:22.5 +23:16:28 7.7 0.15 165 456826 06:18:46.3 +23:12:26 16.7 165 Positions are for J2000
Event circumstances last updated at 2024/06/13 03:45:11 UT
Marc W. Buie, Southwest Research Institute