Event between (5145) Pholus and star GA0740:24278041 with event index number of 1717643
Geocentric closest approach at 2027/06/30 21:06:12 UTC
J2000 position of star is 18:51:20.1 -14:59:02
Equinox of date position of star is 18:52:43.8 -14:57:11
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 130 degrees from the moon.
Moon is 15% illuminated.
Apparent brightness V=22.0
Object is 30.8 AU from the Sun
and 29.8 AU from the Earth.
Apparent velocity is 26.0
km/sec on the sky relative to the star, or,
4.3 arcsec/hr.
The 1-sigma error in the time of the event is 127 seconds.
The 1-sigma cross-track error in the shadow position is
1517 km.
The object has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 8.9 sec chord
Diameter=93.5 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
Star training set for 5145, (2027/06/30 21:06UT) Object RA Dec mag sep mel Antares 16:31:05.9 -26:29:26 0.9 34.97 164 Nunki 18:56:58.1 -26:15:36 2.0 11.35 132 PPM 235210 18:56:17.6 -15:34:00 4.8 1.02 129 PPM 235132 18:52:57.6 -14:38:58 8.4 0.30 130 PPM 235137 18:53:13.5 -15:08:57 9.5 0.21 130 5145 18:52:54.2 -14:56:57 16.7 130 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 5145, (2027/06/30 21:06UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 34.97 164 Nunki 18:55:15.9 -26:17:49 2.0 11.35 132 PPM 235210 18:54:43.1 -15:36:12 4.8 1.02 129 PPM 235132 18:51:23.7 -14:41:02 8.4 0.30 130 PPM 235137 18:51:39.3 -15:11:02 9.5 0.21 130 5145 18:51:20.1 -14:59:02 16.7 130 Positions are for J2000
Event circumstances last updated at 2024/06/21 21:29:32 UT
Marc W. Buie, Southwest Research Institute