Sky Events
May 2025
May 3: Conjunction of the Moon and Mars, with an angular separation of 2°04′
May 4: First Quarter Moon
May 6: The η-Aquariid meteor shower reaches its peak activity of about 40 meteors per hour.
May 11: Globular cluster M5 in Serpens is well-placed for observation.
May 12: Full Moon
May 20: Third Quarter Moon
May 22: Conjunction of the Moon and Saturn in the early morning, with an angular separation of 2°49′
May 23: Conjunction of the Moon and Venus in the early morning, with an angular separation of 3°59′
May 28: The globular cluster M4 in Scorpius is well-placed for observation.
May 31: Venus at greatest western elongation
Planets in May
Mercury: Morning planet, too low to be seen properly.
Venus: Morning planet, lowering so hard to see before sunrise.
Mars: Evening planet, best at start of May
Jupiter: Evening planet in Taurus, compromised by twilight mid-month onwards
Saturn: Poorly placed morning planet forming a compact triangle with Venus and Neptune early in May.
June 2025
June 1: Conjunction of the Moon and Mars, with an angular separation of 1°23′
June 2: The Great Globular Cluster in Hercules (M13) is well-placed for observation.
June 2: First Quarter Moon
June 3: The globular cluster M12 in Ophiuchus is well-placed for observation.
June 5: The globular cluster M5 in Ophiuchus is well-placed for observation.
June 10: The Daytime Arietid meteor shower reaches its peak activity of about 50 meteors per hour.
June 11: Full Moon
June 11: The globular cluster M92 in Hercules is well-placed for observation.
June 18: Third Quarter Moon
June 18: Conjunction of the Moon and Saturn, with an angular separation of 3°23′
June 20: Summer Solstice
June 22: Conjunction of the Moon and Venus, with an angular separation of 7°10′
June 29: Conjunction of the Moon and Mars, with an angular separation of 12′
Planets in June
Mercury: Best placed at end of June in evening sky.
Venus: Morning planet. Greatest western elongation on June 1.
Mars: Low altitude morning planet. Conjunction with Regulus on June 16.
Jupiter: Evening planet, near the Sun. Solar conjunction on June 24, thereafter a morning planet.
Saturn: Another poorly located morning planet, currently close to Neptune.