A table listing some of the Astronomical Phenomena for June 2018:
| Day (UT) | Time (UT) | Event |
|---|---|---|
| 1 | 01:04 | Saturn (mag. +0.2) 1.6 degrees south of Moon. |
| 2 | 16:27 | Moon at apogee approx. 405,314 kilometres or 251,850 miles from the Earth. |
| 3 | 12:01 | Mars (mag. -1.3) 3.2 degrees south of Moon. |
| 6 | 03:38 | Mercury reaches superior conjunction. |
| 6 | 10:25 | Mercury at perihelion 0.307 AU (approx. 45.9 million kilometres or 28.5 million miles) from the Sun. |
| 6 | 17:34 | Neptune (mag. +7.9) 2.4 degrees north of Moon. |
| 6 | 18:32 | Last quarter moon. |
| 9 | 01:16 | Venus (mag. -4.0) 4.8 degrees south of Pollux (mag. +1.1). |
| 10 | 03:15 | Uranus (mag. +5.9) 4.9 degrees north of Moon. |
| 13 | 19:44 | New moon. |
| 14 | 23:46 | Moon at perigee approx. 359,506 kilometres or 223,386 miles from the Earth. |
| 16 | 13:12 | Venus (mag. -4.0) 2.3 degrees north of Moon. |
| 18 | 07:50 | Moon 1.7 degrees north of Regulus (mag. +1.4). |
| 19 | 06:56 | Neptune (mag. +7.9) begins retrograde motion. |
| 20 | 00:45 | Vesta (mag. +5.3) at opposition 1.142 AU (approx. 170.8 million kilometres or 106.2 million miles) from the Earth. |
| 20 | 10:51 | First quarter moon. |
| 21 | 10:08 | NH Summer Solstice, SH Winter Solstice. |
| 22 | 02:59 | Moon 7.6 degrees north of Spica (mag. +1.0). |
| 23 | 18:47 | Jupiter (mag. -2.4) 4.2 degrees south of Moon. |
| 25 | 15:54 | Mercury (mag. -0.4) 4.9 degrees south of Pollux (mag. +1.1). |
| 25 | 21:23 | Moon 9.1 degrees north of Antares (mag. +1.0). |
| 27 | 09:16 | Vesta (mag. +5.4) 0.3 degrees south of Moon. |
| 27 | 13:27 | Saturn (mag. 0.0) at opposition 9.049 AU (approx. 1,354 million kilometres or 841.2 million miles) from the Earth. |
| 28 | 03:43 | Saturn (mag. 0.0) 1.8 degrees south of Moon. |
| 28 | 04:53 | Full moon. |
| 28 | 13:35 | Mars (mag. -2.1) begins retrograde motion. |
| 30 | 02:30 | Moon at apogee approx. 406,059 kilometres or 252,313 miles from the Earth. |