Astronomy Calendar

• 1
  Moon at Last Quarter  Remind MeThe Moon reaches last quarter phase – rising in the east at around midnight and appearing high in the sky by sunrise.
• 3
  Conjunction of the Moon and Saturn  Remind MeThe Moon and Saturn share the same right ascension, at a separation of 50'.
  Close approach of the Moon and Saturn  Remind MeThe Moon and Saturn pass close to each other.
  Lunar occultation of Saturn  Remind MeThe Moon will pass in front of Saturn, creating a lunar occultation visible from Antarctica.
• 4
  Close approach of the Moon and Neptune  Remind MeThe Moon and Neptune pass close to each other.
  Lunar occultation of Neptune  Remind MeThe Moon will pass in front of Neptune, creating a lunar occultation visible from countries and territories including Australia, New Zealand, Tasmania and Lord Howe Island amongst others.
  Close approach of the Moon and Mars  Remind MeThe Moon and Mars pass close to each other.
  Lunar occultation of Mars  Remind MeThe Moon will pass in front of Mars, creating a lunar occultation visible from countries and territories including Madagascar, Mauritius, Reunion and Seychelles amongst others.
  Conjunction of the Moon and Mars  Remind MeThe Moon and Mars share the same right ascension, at a separation of 11'.
• 5
  Comet 479P/Elenin passes perihelion  Remind MeComet 479P/Elenin makes its closest approach to the Sun.
  η-Aquariid meteor shower 2024  Remind MeThe η-Aquariid meteor shower reaches its peak.
  The Moon at perigee  Remind MeThe Moon makes its monthly closest approach to the Earth, making it appear fractionally larger than at other times of the month.
• 6
  Conjunction of the Moon and Mercury  Remind MeThe Moon and Mercury share the same right ascension, at a separation of 3°49'.
  The Moon at perihelion  Remind MeThe Moon passes its orbit's closest point to the Sun, which happens each month around the time of new moon.
• 7
  New Moon  Remind MeThe Moon disappears into the Sun's glare for a few days.
• 8
  η-Lyrid meteor shower 2024  Remind MeThe η-Lyrid meteor shower reaches its peak.
  Mars at perihelion  Remind MeMars passes its orbit's closest point to the Sun.
• 9
  Mercury at greatest elongation west  Remind MeMercury is bright and well placed in the dawn sky.
• 10
  Lunar occultation of Beta Tauri  Remind MeThe Moon will pass in front of Beta Tauri (Elnath), creating a lunar occultation visible from Sub-Saharan Africa.
• 11
  Messier 5 is well placed  Remind MeThe globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time.
• 12
  Uranus at solar conjunction  Remind MeUranus is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next.
• 14
  Conjunction of Mercury and Eris  Remind MeMercury and Eris share the same right ascension, at a separation of 8°07'.
  Mercury at highest altitude in morning sky  Remind MeMercury is bright and well placed in the dawn sky.
  Mercury at dichotomy  Remind MeMercury reaches half phase in the dawn sky.
• 15
  Moon at First Quarter  Remind MeThe Moon reaches first quarter phase – appearing high in the sky at sunset and setting in the west at around midnight.
• 17
  Asteroid 2 Pallas at opposition  Remind MeAsteroid 2 Pallas makes closest approach to the Earth.
  The Moon at apogee  Remind MeThe Moon recedes to its orbit's furthest point from the Earth, making it appear fractionally smaller than at other times of the month.
• 18
  Jupiter at solar conjunction  Remind MeJupiter is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next.
• 19
  Comet 46P/Wirtanen passes perihelion  Remind MeComet 46P/Wirtanen makes its closest approach to the Sun.
• 20
  Jupiter at apogee  Remind MeJupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun.
• 23
  Full Moon  Remind MeThe Moon reaches full phase and is visible for much of the night.
  Lunar occultation of Antares  Remind MeThe Moon will pass in front of Antares (Alpha Scorpii), creating a lunar occultation visible from the Americas, Western Africa, Middle Africa, Bonaire, Saint Eustatius and Saba, Grenada and Navassa Island.
• 24
  The Moon at aphelion  Remind MeThe Moon recedes to its orbit's furthest point from the Sun, which happens each month around the time of full moon.
• 28
  Messier 4 is well placed  Remind MeThe globular cluster M4 (NGC 6121; mag 5.4) in Scorpius culminates at around midnight local time.
• 30
  Moon at Last Quarter  Remind MeThe Moon reaches last quarter phase – rising in the east at around midnight and appearing high in the sky by sunrise.
  Conjunction of Mercury and Uranus  Remind MeMercury and Uranus share the same right ascension, at a separation of 1°21'.
• 31
  Conjunction of the Moon and Saturn  Remind MeThe Moon and Saturn share the same right ascension, at a separation of 22'.
  Close approach of the Moon and Saturn  Remind MeThe Moon and Saturn pass close to each other.
  Lunar occultation of Saturn  Remind MeThe Moon will pass in front of Saturn, creating a lunar occultation visible from countries and territories including Argentina, Chile, Brazil and Uruguay amongst others.
  Close approach of the Moon and Neptune  Remind MeThe Moon and Neptune pass close to each other.
  Lunar occultation of Neptune  Remind MeThe Moon will pass in front of Neptune, creating a lunar occultation visible from Sub-Saharan Africa.