Diary of Astronomical Phenomena
All times are in UTC, the civil “wall-clock” time-scale (without daylight savings)
September 2023
dd hh
01 10 Neptune 1.7° north of the Moon
03 08 Moon at ascending node
04 18 Jupiter 2.1° south of the Moon
05 09 Uranus 2.3° south of the Moon
05 20 Pleiades 2.1° north of the Moon
06 11 Mercury at inferior conjunction
06 22 Last quarter Moon
08 13 Moon furthest north (+28.2°)
09 22 Castor 5.8° north of the Moon
10 03 Pollux 2.1° north of the Moon
11 08 Beehive cluster 3.4° south of the Moon
12 16 Moon at apogee (406289 km)
13 04 Regulus 3.3° south of the Moon
15 02 New Moon
16 20 Mars 0.3° north of the Moon
17 18 Spica 1.2° south of the Moon
17 19 Moon at descending node
19 10 Neptune at opposition
21 08 Antares 0.5° south of the Moon
22 13 Mercury at greatest elongation (17.9° west)
22 20 First quarter Moon
23 04 Moon furthest south (-28.3°)
23 07 Autumnal equinox
23 18 Mercury at perihelion
27 05 Saturn 2.8° north of the Moon
28 01 Moon at perigee (359911 km)
28 18 Neptune 2.3° north of the Moon
29 10 Full Moon
30 17 Moon at ascending node
October 2023
dd hh
02 01 Jupiter 2.6° south of the Moon
02 16 Uranus 1.8° south of the Moon
03 07 Pleiades 1.4° north of the Moon
05 21 Moon furthest north (+28°18.2'); max. 2023
06 14 Last quarter Moon
07 04 Castor 5.2° north of the Moon
07 11 Pollux 2.0° north of the Moon
08 16 Beehive cluster 3.0° south of the Moon
09 06 Venus 2.3° south of Regulus
10 04 Moon at apogee (405426 km)
10 14 Regulus 3.1° south of the Moon
10 16 Venus 5.0° south of the Moon
14 18 New Moon
14 18 Annular Solar Eclipse; mag=0.952
15 01 Moon at descending node
18 14 Antares occulted by the Moon
20 05 Mercury at superior conjunction
20 09 Moon furthest south (-28°19.0'); max. 2023
22 00 Orionid meteor shower
22 03 First quarter Moon
23 22 Venus at greatest elongation (46.4° west)
24 09 Saturn 3.2° north of the Moon
26 03 Moon at perigee (364873 km)
26 04 Neptune 1.7° north of the Moon
28 03 Moon at ascending node
28 20 Partial Lunar Eclipse; mag=0.122
28 20 Full Moon
29 08 Jupiter 2.3° south of the Moon
30 00 Uranus 2.2° south of the Moon
30 16 Pleiades 2.0° north of the Moon