Calendar of Astronomical Events

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
	1 Mercury at highest altitude in evening sky The Great Globular Cluster in Hercules is well placed	2 The Moon at perigee	3 Venus at inferior solar conjunction Messier 12 is well placed	4 Mercury at greatest elongation east	5 Full Moon Penumbral lunar eclipse Messier 10 is well placed	6 Messier 62 is well placed The Moon at aphelion
7	8 Conjunction of the Moon and Jupiter Close approach of the Moon and Jupiter Conjunction of the Moon and Saturn Close approach of the Moon and Saturn	9	10 Daytime Arietid meteor shower 2020 Messier 92 is well placed	11	12 Conjunction of Mars and Neptune Conjunction of the Moon and Mars Close approach of the Moon and Mars Moon at Last Quarter	13
14 The Moon at apogee	15 NGC 6388 is well placed	16 The Butterfly cluster is well placed NGC 6397 is well placed	17	18 Comet C/2019 U6 (Lemmon) passes perihelion The cluster IC 4665 is well placed	19 Close approach of the Moon and Venus Lunar occultation of Venus Conjunction of the Moon and Venus	20 The Moon at perihelion June solstice The Ptolemy cluster is well placed Annular solar eclipse New Moon
21	22 Conjunction of the Moon and Mercury Comet C/2019 U6 (Lemmon) reaches peak brightness The Lagoon Nebula is well placed Neptune enters retrograde motion Mercury at aphelion	23 NGC 6541 is well placed	24	25	26	27 June Bootid meteor shower 2020 Asteroid 7 Iris at opposition
28 Moon at First Quarter Comet C/2019 U6 (Lemmon) passes perigee Conjunction of Jupiter and Pluto The cluster NGC 6633 is well placed	29 The Moon at perigee	30 Messier 22 is well placed Mercury at inferior solar conjunction