Sky Events 2021

September 2021

September 6: New Moon

September 13: First Quarter Moon

September 14: Neptune at Opposition

September 16: Conjunction of the Moon and Saturn, with an angular separation of 3°45′.

September 18: Conjunction of the Moon and Jupiter, with an angular separation of 3°57′.

September 20: Full Moon

September 22: Fall Equinox

September 24: Conjunction of the Moon and Uranus, with an angular separation of 1°14′.

September 28: Third Quarter Moon

Planets in September

Mercury challenging to see in the evening sky after sunset this month, best chance for it is the first two weeks of September.

Venus is low in the western sky setting an hour after sunset. A thin Moon is nearby on 9th and 10th.

Mars is too close to the Sun to be seen this month.

Jupiter and Saturn are visible the bulk of the month, starting the evening low in the southeastern sky, setting around 2:30 am.

October 2021

October 1: Galaxy M110 in Andromeda is well-placed for observation

October 2: Galaxies M31 and M32 in Andromeda are well-placed for observation

October 5: October Camelopardalid meteor shower reaches its peak activity

October 6: New Moon

October 8: Draconid meteor shower reaches its peak activity

October 9: Conjunction of the Moon and Venus, with an angular separation of 2°51′

October 10: Southern Taurid meteor shower reaches its peak activity

October 10: Saturn ends retrograde motion

October 12: First Quarter Moon

October 14: Conjunction of the Moon and Saturn, with an angular separation of 3°56′

October 15: Conjunction of the Moon and Jupiter, with an angular separation of 4°08′ 

October 15: The galaxy M33 in Triangulum is well-placed for observation

October 18: Jupiter ends retrograde motion

October 20: Full Moon

October 21: Orionid meteor shower reaches peak activity

October 21: Conjunction of the Moon and Uranus, with an angular separation of 1°14′

October 24: Mercury at greatest western elongation

October 28: Third Quarter Moon

October 29: Venus at greatest eastern elongation

Planets in October

Mercury returns to the morning sky before sunrise for a good display from mid-month onwards.

Venus remains low after sunset and a thin waxing crescent Moon lies nearby on the ninth.

Mars is in solar conjunction on the 8th and not visible.

Jupiter and Saturn reach greatest altitude early evening and are visible until just after midnight.