A table listing some of the Astronomical Phenomena for May 2015:
Phenomena May
| Day | Event |
|---|---|
| 2 | Moon passes 3.5 degrees north of Spica mag +1.0 (12 UT) |
| 2 | Asteroid (18) Melpomene mag +10.3 is at opposition in Libra |
| 4 | Full Moon (3:43 UT) |
| 5 | Moon passes 2 degrees north of Saturn mag +0.1 (16 UT) |
| 6 | Eta Aquariid meteor shower peaks ZHR = 55 (13 UT) |
| 6 | Moon passes 9 degrees north of Antares mag +1.0 (3 UT) |
| 7 | Mercury mag +0.2 is at greatest elongation east 21 degrees (5 UT) |
| 11 | Last quarter Moon (10:37 UT) |
| 12 | Mercury mag. +1.0 passes 8 degrees north of Aldebaran mag +0.9 (1 UT) |
| 12 | Moon passes 4 degrees north of Neptune mag +7.9 (21 UT) |
| 12 | Asteroid (349) Dembowska mag +10.2 is at opposition in Libra |
| 15 | Moon is at perigee 366,026 km or 227,438 miles from Earth (0:10 UT) |
| 15 | Moon passes 0.2 degrees north of Uranus mag +5.9, occultation is visible from central South America, west and central Africa (11:55 UT) |
| 17 | Asteroid (532) Herculina mag +9.1 is at opposition in Serpens |
| 18 | New Moon (4:14 UT) |
| 19 | Mercury mag +2.5 is stationary in Taurus, afterwards begins retrograde motion (11 UT) |
| 20 | Saturn's moon Iapetus is at greatest western elongation mag +10.1 (10 UT) |
| 21 | Moon passes 8 degrees south of Venus mag -4.3 (19 UT) |
| 22 | Moon passes 12 degrees south of Pollux mag +1.1 (13 UT) |
| 23 | Saturn mag +0.1 is at opposition 8.967 AU (approx. 1341 million kms or 833.5 million miles) from the Earth (2 UT) |
| 24 | Moon passes 5 degrees south of Jupiter mag -2.0 (7 UT) |
| 25 | Moon passes 4 degrees south of Regulus mag +1.4 (12 UT) |
| 25 | First quarter Moon (17:19 UT) |
| 26 | Moon is at apogee 404,245 km or 251,186 miles from Earth (22:10 UT) |
| 28 | Asteroid (405) Thia mag +10.4 is at opposition in Scorpius |
| 29 | Moon passes 4 degrees north of Spica mag +1.0 (19 UT) |
| 30 | Mercury is at inferior conjunction (22 UT) |
| 30 | Venus mag -4.4 passes 4 degrees south of Pollux mag +1.1 (17 UT) |