May

For terms in boldface, see Astronomical Terms.

Day	Phenomenon	Hour
2	Mars is 4° south of the Moon.	1100
3	Pallas, the second-largest asteroid, appears to be motionless in the sky as it goes from direct motion to retrograde motion.	0300
4	Saturn is 4° south of the Moon.	0900
4	Jupiter is at opposition.	1500
5	FIRST QUARTER	0500
7	The Moon is at apogee.	0700
11	Spica, the brightest star in the constellation Virgo, is 0° 3' south of the Moon. Occultation of Spica by the Moon.	0000
12	Jupiter is 5° north of the Moon.	1600
13	FULL MOON	0700
14	Antares, the brightest star in the constellation Scorpius, is 0° 1' north of the Moon. Occultation of Antares by the Moon.	1500
18	Mercury is in superior conjunction.	2000
19	Neptune is 4° north of the Moon.	1500
20	LAST QUARTER	0900
21	Uranus is 1° 0' north of the Moon. Occultation of Uranus by the Moon.	1000
22	The Moon is at perigee.	1500
22	Neptune appears to be motionless in the sky as it goes from direct motion to retrograde motion.	1700
24	Venus is 4° south of the Moon.	0800
25	Mars is 5° south of Pollux, the brightest star in the constellation Gemini.	0500
27	NEW MOON	0500
31	Mars is 3° south of the Moon.	0300
31	Vesta, the third-largest asteroid, is 0° 9' south of the Moon. Occultation of Vesta by the Moon.	1200
31	Saturn is 4° south of the Moon.	2100