|2||Moon near Antares (morning sky) at 11h UT.|
|2||Venus 6.4° N of Aldebaran (28° from Sun, evening sky) at 18h UT. Mags. −3.9 and 0.9.|
|4||Moon near Saturn (morning sky) at 20h UT. Mag. 0.3.|
|6||Eta Aquarid meteor shower peaks. Most active for 7 days around this date. Associated with Comet Halley. Very fast, bright meteors, up to 30 per hour. Favors skywatchers in the tropics observing a few hours before dawn. Unfavorable viewing conditions this year due to bright moonlight.
• The Eta Aquarids (Gary Kronk)
• Meteor Shower Calendar (American Meteor Society)
|6||Moon at apogee (farthest from Earth) at 1h UT (distance 404,457 km; angular size 29.5′).|
|6||Moon near Mars (morning sky) at 7h UT. Mag. −0.5.|
|8||Last Quarter Moon at 2:10 UT.|
|9||Jupiter at opposition at 0h UT. Best time to observe the largest planet in the solar system. Mag. −2.5.
• Opposition (Wikipedia)
|13||Moon near Mercury (23° from Sun, morning sky) at 19h UT. Mag. −0.2.|
|15||New Moon at 11:49 UT. Start of lunation 1180.
• Lunation Number (Wikipedia)
|16||Moon near Aldebaran (15° from Sun, evening sky) at 13h UT.|
|17||Moon near Venus (31° from Sun, evening sky) at 19h UT. Mag. −4.0.|
|17||Moon at perigee (closest to Earth) at 21h UT (363,776 km; angular size 32.8′).|
|19||Moon near Pollux (evening sky) at 13h UT.|
|20||Moon near Beehive cluster M44 (evening sky) at 12h UT.
• Beehive Cluster (Wikipedia)
• M44: The Beehive Cluster (APOD)
|21||Venus 0.7° N of M35 cluster (32° from Sun, evening sky) at 10h UT. Mags. −4.0 and 5.1.|
|22||Moon near Regulus (evening sky) at 2h UT.|
|22||First Quarter Moon at 3:50 UT.|
|26||Moon near Spica (evening sky) at 2h UT.|
|27||Moon near Jupiter (evening sky) at 20h UT. Mag. −2.5.|
|29||Full Moon at 14:20 UT.|
|29||Moon near Antares (midnight sky) at 19h UT.|
|May 2018 Sky All times Universal Time (UT).|