Phenomena for March 2010
Selected astronomical phenomena:
| Day | Time | Phenomenon |
| 7 | 15:41 | Last Quarter |
| 14 | 13:16 | Mercury at superior conjunction |
| 15 | 21:01 | New Moon |
| 17 | 06:49 | Uranus at conjunction |
| 20 | 17:32 | Spring Equinox |
| 22 | 00:37 | Saturn at opposition |
| 23 | 11:00 | First Quarter |
| 30 | 02:25 | Full Moon |
Times are in Coordinated Universal Time (UTC).
Notice to small-body ephemeris users
Due to recent computer issues at Harvard's Center for Astrophysics, no new orbital data has been gathered from it since Feb. 12, 2010. It is recommended that JPL orbits are selected for recent comets, if you use our online ephemeris system. Note that latest IMCCE orbits are still older, from January 2010, so JPL orbits are the most up-to-date for now.
Meteor shower prediction for tonight
Ephemerides for meteor radiants active at 0h UTC of March 10, 2010:
Right ascension and declination are referred to ICRS. Vg is the geocentric velocity in km/s, and ZHR is the Zenith Hourly Rate. Read the explanation for additional information. Percentage of illuminated Moon at 0h TT is 28%.
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