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1
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Mercury at inferior conjunction with the Sun at 23h UT. The innermost planet passes into the morning sky.
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4
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Moon near Spica at 5h UT (evening sky).
• Spica (Wikipedia)
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5
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Penumbral Lunar Eclipse from 15:14 to 19:32 UT, mid-eclipse at 17:23 UT. Best seen at mid-eclipse as a slight dimming of the Full Moon. Visible from Africa, Asia and Australia.
• NASA Lunar Eclipses: 2021-2030 (NASA)
• Penumbral Lunar Eclipse of 2023 May 05 (PDF) (NASA)
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5
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Full Moon at 17:36 UT.
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6
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Eta Aquarid meteor shower peaks. Most active for 7 days around this date. Associated with Comet Halley. Very fast, bright meteors, up to 40 per hour. Best seen from the tropics and southern hemisphere a few hours before dawn. Moonlight interferes this year.
• Eta Aquarids (Wikipedia)
• AMS Meteor Shower Calendar 2022-2023 (IMO)
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7
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Moon near Antares at 14h UT (morning sky).
• Antares (Wikipedia)
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9
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Venus 1.8° N of M35 star cluster at 17h UT (44° from Sun, evening sky). Mag. −4.2.
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9
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Venus at northernmost declination (26.1°) at 22h UT. Mag. −4.2.
• Venus (Wikipedia)
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11
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Moon at perigee (closest to Earth) at 5:07 UT (distance 369,343km; angular size 32.4').
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12
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Last Quarter Moon at 14:28 UT.
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13
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Moon near Saturn at 16h UT (morning sky). Mag. 1.0.
• Saturn (Wikipedia)
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17
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Moon near Jupiter at 13h UT (morning sky). Mag. −2.1. Occultation visible from North America, Canada and Greenland.
• Jupiter (Wikipedia)
• Occultation of Jupiter (IOTA)
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18
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Moon near Mercury at 0h UT (morning sky). Mag. 1.7.
• Mercury (Wikipedia)
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19
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New Moon at 15:55 UT. Start of lunation 1242.
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22
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Moon near M35 star cluster at 8h UT (evening sky).
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23
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Moon near Venus at 13h UT (41° from Sun, evening sky). Mag. −4.2. Look out for this spectacular pairing!
• Venus (Wikipedia)
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23
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Moon near Castor at 21h UT (evening sky).
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24
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Moon near Pollux at 2h UT (evening sky).
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24
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Moon near Mars at 20h UT (evening sky). Mag. 1.5.
• Mars (Wikipedia)
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25
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Moon near Beehive cluster M44 at 7h UT (evening sky).
• Beehive Cluster (Wikipedia)
• M44: The Beehive Cluster (APOD)
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26
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Moon at apogee (farthest from Earth) at 2h UT (distance 404,509km; angular size 29.5').
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27
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Moon near Regulus at 5h UT (evening sky).
• Regulus (Wikipedia)
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27
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First Quarter Moon at 15:23 UT.
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29
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Mercury at greatest elongation west at 5h UT (25° from Sun, morning sky). Mag. 0.6.
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31
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Moon near Spica at 14h UT (evening sky).
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All times Universal Time (UT).
- US Eastern Daylight Time = UT − 4 hours.
- US Pacific Daylight Time = UT − 7 hours.
- Australian Eastern Standard Time = UT + 10 hours
- Singapore Standard Time = UT + 8 hours.
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