Selected astronomical phenomena:
| Day | Time | Phenomenon |
|---|---|---|
| 5 | 18h | Maximum of eta-Aquarids |
| 6 | 03:35 | Full Moon |
| 8 | 17h | Maximum of eta-Lyrids |
| 12 | 21:46 | Last Quarter |
| 13 | 13:22 | Jupiter at conjunction |
| 20 | 23:47 | New Moon |
| 27 | 11:19 | Mercury at superior conjunction |
| 28 | 20:16 | First Quarter |
Times are in Coordinated Universal Time (UTC). You may need to apply the relevant timezone to get the official time in your area.
Ephemerides for meteor radiants active at 0h UTC of May 20, 2012:
| Shower | R.A. | Decl. | Vg | ZHR |
|---|---|---|---|---|
| eta-Aquarids | 349° | 5° | 66 | 5 |
| Anthelion Source | 249° | -22° | 25 | 3 |
Right ascension and declination are referred to ICRS. Vg is the geocentric velocity in km/s, and ZHR is the Zenith Hourly Rate. You can read the meteor area for additional information. The percentage of illuminated moon at 0h UTC is 1%.
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