Event between (54598) Bienor and star GA1100:03347694 with event index number of 2753052
Geocentric closest approach at 2029/05/08 23:04:50 UTC
J2000 position of star is 09:29:33.4 +20:51:39
Equinox of date position of star is 09:30:56.3 +20:45:10
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 139 degrees from the moon.
Moon is 18% illuminated.
Apparent brightness V=19.0
Object is 13.2 AU from the Sun
and 13.2 AU from the Earth.
Apparent velocity is 10.1
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 69 seconds.
The 1-sigma cross-track error in the shadow position is
726 km.
The object has an absolute magnitude Hv=7.4
Diameter=195.0 km assuming a 5% albedo -- 19.4 sec chord
Diameter=79.6 km assuming a 30% albedo -- 7.9 sec chord
Dynamical classification is CENTAURR
Star training set for 54598, (2029/05/08 23:05UT) Object RA Dec mag sep mel Regulus 10:09:56.0 +11:49:21 1.3 12.86 151 4Lam Leo 09:33:23.4 +22:50:13 4.3 2.17 138 PPM 099647 09:33:13.8 +20:08:23 8.1 0.76 139 PPM 099610 09:31:02.0 +20:47:06 8.7 0.07 138 54598 09:31:12.7 +20:43:52 16.4 139 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 54598, (2029/05/08 23:05UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 12.86 151 4Lam Leo 09:31:43.2 +22:58:04 4.3 2.17 138 PPM 099647 09:31:34.8 +20:16:14 8.1 0.76 139 PPM 099610 09:29:22.7 +20:54:53 8.7 0.07 138 54598 09:29:33.4 +20:51:39 16.4 139 Positions are for J2000
Event circumstances last updated at 2024/06/26 21:35:11 UT
Marc W. Buie, Southwest Research Institute