Sky Events 2021

June 2021

June 1: Conjunction of the Moon and Jupiter, with an angular separation of 4°37′.

June 2: Third Quarter Moon

June 2: The Hercules Globular Cluster M13 is well-placed for obseration.

June 3: The globular cluster M12 in Ophiuchus is well-placed for observation.

June 5: The globular cluster M10 in Ophiuchus is well-placed for observation.

June 10: New Moon

June 10: Annular Solar Eclipse

June 11: The globular cluster M92 in Hercules will be well-placed for observation.

June 12: Conjunction of the Moon and Venus, with an angular separation of 1°28′ 

June 13: Conjunction of the Moon and Mars, with an angular separation of 2°48′

June 17: First Quater Moon

June 20: Jupiter enters retrograde motion

June 20: Summer Solstice

June 24: Full Moon

June 25: Neptune enters retrograde motion

June 27: Conjunction of the Moon and Saturn, with an angular separation of 4°01′ 

June 27: The June Bootid meteor shower reaches peak activity.

June 28: Conjunction of the Moon and Jupiter, with an angular separation of 4°27′

 

Planets in June

Mercury is visible in the southwestern sky after sunset the first week of the month. It is in inferior conjunction on the 11th, and then will re-emerge in the morning sky the last week of the month.

Venus now visible for up to 90 minutes after sunset. Thin waxing lunar crescent Moon is nearby on 11th and 12th of the month.

Mars very low in the southwestern twilight.  Look for it on the 11th when it is close to a very young crescent Moon and the planet Venus.

Jupiter rises just after 11:00 pm in the east and is visible until just before sunrise.

Saturn rises around 10:30 am and is near a bright Moon on the 28th.

July 2021

July 1: Third Quarter Moon

July 1: M22 in Sagittarius and IC4756 in Serpens are well-placed for observation

July 3: Close approach of Venus and M44, just after sunset

July 5: Mercury at greatest western elongation

July 7: Comet 15P/Finlay is forecast to reach its brightest.

July 8: Conjunction of the Moon and Mercury, with the Moon passing 3°45′ to the north of Mercury

July 9: New Moon

July 12: Conjunction of the Moon, Venus, and Mars

July 17: First Quarter Moon

July 23: New Moon

July 24: Conjunction of the Moon and Saturn, with the Moon passing 3°48′ to the south of Saturn

July 25: Conjunction of the Moon and Jupiter, with the Moon passing 4°10′ to the south of Jupiter

July 30: The Southern δ-Aquariid meteor shower reaches its peak activity of about 25 meteors per hour.

July 31: Third Quarter Moon

 

Planets in July

Mercury rises one hour before the Sun at the start of July and is visible until around the 18th in the morning skies before being lost in the glare of the Sun.

Venus and Mars are poorly positioned low in the southwest as sunset.

Jupiter is visible the bulk of the night, rising around 10pm and being visible until sunrise

Saturn is approaching opposition and the rings will brighten at the end of July due to the Seeliger effect.