September Moon & Planet Diary for 2015


The follwing table lists various solar system object events during September. A list of astronomical terms used in may be found after the table.

September 1 Neptune at opposition
Uranus 1.0 degrees north of the Moon Occn
September 4 Mercury greatest elong E(27)
September 5 Aldebaran 0.6 degrees south of the Moon Occn
Moon last quarter
Venus stationary
September 6 Moon northern most declination (18.2 degrees)
September 10 Venus 2.6 degrees south of the Moon
Mars 4.6 degrees north of the Moon
September 11 Regulus 3.2 degrees north of the Moon
September 12 Jupiter 3.1 degrees north of the Moon
September 13 Moon new Eclipse
September 14 Moon at apogee
September 15 Mercury 5.1 degrees south of the Moon
September 16 Spica 4.1 degrees south of the Moon
September 17 Mercury stationary
September 19 Saturn 2.7 degrees south of the Moon
September 21 Moon first quarter
Moon southern most declination (-18.1 degrees)
September 22 Pluto 3.3 degrees south of the Moon
September 23 Equinox
September 24 Pluto stationary
September 25 Mars 0.8 degrees north of Regulus
September 26 Neptune 2.9 degrees south of the Moon
September 28 Moon full Eclipse
Moon at perigee
September 29 Uranus 0.9 degrees north of the Moon Occn
September 30 Mercury inferior conjunction
  • apogee: Furtherest point in the orbit of a body orbiting the Earth
  • declination: 'Latitude' for celestial objects. The distance in degress above (north) or below (south) the celestial equator.
  • inferior conjunction: Conjunction where a solar system object is between the Earth and the Sun
  • perigee: Nearest point in the orbit of a body orbiting the Earth