September

For terms in boldface, see Astronomical Terms.

Day	Phenomenon	Hour
1	Antares, the brightest star in the constellation Scorpius, is 0° 5' north of the Moon. Occultation of Antares by the Moon.	0200
1	Mercury is in superior conjunction.	0500
2	The asteroid Juno is in conjunction with the Sun.	0600
5	Pluto appears to be motionless in the sky as it goes from retrograde to direct motion.	1100
5	Uranus is at opposition.	1100
5	Neptune is 3° north of the Moon.	2200
5	Venus is 0° 8' north of Regulus, the brightest star in the constellation Leo.	2300
7	Uranus is 0° 4' north of the Moon. Occultation of Uranus by the Moon.	1500
7	FULL MOON. Partial eclipse of the Moon.	1900
8	The Moon is at perigee.	0300
11	Vesta, the third largest asteroid, is in conjunction with the Sun.	0100
14	LAST QUARTER	1100
15	Mercury is 0° 2' south of Mars.	2100
19	Saturn is 2° south of the Moon.	0300
22	The Moon is at apogee.	0500
22	NEW MOON. Annular eclipse of the Sun.	1200
23	Equinox	0400
24	Mercury is 1° 8' north of the Moon.	0400
24	Spica, the brightest star in the constellation Virgo, is 0° 5' north of the Moon. Occultation of Spica by the Moon.	1400
26	Jupiter is 5° north of the Moon.	1600
27	Mercury is 1° 3' north Spica, the brightest star in the constellation Virgo.	1500
28	Antares, the brightest star in the constellation Scorpius, is 0° 5' north of the Moon. Occultation of Antares by the Moon.	0800
30	FIRST QUARTER	1100