The Moon and the stars — June 2028

Lunar occultations of stars to magnitude 9.5, computed for your location

Every night the Moon slides in front of stars. A star doesn't fade behind it — it switches off, then switches back on at the other edge, often an hour later. Pick your place and what you observe with; the list keeps what you can realistically see.

Naked eye Binoculars Small telescope (80 mm) Telescope (200 mm)

12 occultations you can see from New Delhi with small telescope (80 mm) this month, on 9 nights · 1183 in all from there

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 5

1 18

1 25

Times in IST. A night runs from noon to noon, so an event at 01:30 stays with the evening before. On each Moon, the numbered marks show where on the limb each star disappears or reappears.

Night of Sun 4 Jun

1
21:28:01 HIP 70961 V 7.1
Disappears at the dark limb
40° up in the S · dark sky · PA 107° · cusp 82°

Night of Mon 5 Jun

1
00:11:17 HR 5765 V 7.0
Disappears at the dark limb
34° up in the SSW · dark sky · PA 118° · cusp 61°

Night of Thu 8 Jun

1
22:20:50 λ Sgr V 3.0
Disappears at the bright limb · reappears 23:37:46 at the dark limb
18° up in the SE · dark sky · PA 65° · cusp 61°
2
00:05:25 HR 6929 V 6.5
Reappears at the dark limb
31° up in the SSE · dark sky · PA 341° · cusp 22°

Night of Mon 12 Jun

1
02:28:10 HIP 108018 V 6.9
Reappears at the dark limb
38° up in the SE · dark sky · PA 231° · cusp 72°
2
03:11:04 HR 8355 V 6.6
Reappears at the dark limb
44° up in the SE · dark sky · PA 261° · cusp 78°

Night of Sat 17 Jun

1
03:01:58 101 Psc V 6.2
Reappears at the dark limb
18° up in the E · dark sky · PA 192° · cusp 30°

Night of Sun 18 Jun

1
03:29:29 Gaia …3021824 V 8.2
Reappears at the dark limb
16° up in the ENE · dark sky · PA 204° · cusp 38°

Night of Sat 24 Jun

1
20:12:35 85 Gem V 5.4
Disappears at the dark limb
8° up in the WNW · dusk · PA 60° · cusp 47°

Night of Sun 25 Jun

1
21:00:43 TYC 817-302-1 V 8.0
Disappears at the dark limb
7° up in the WNW · dark sky · PA 127° · cusp 72°

Night of Thu 29 Jun

1
23:23:06 HIP 61042 V 7.9
Disappears at the dark limb
7° up in the WSW · dark sky · PA 122° · cusp 81°
2
23:32:15 HIP 61077 V 8.1
Disappears at the dark limb
5° up in the WSW · dark sky · PA 106° · cusp 83°

Reading the list

The Moons are drawn from LRO LOLA topography (a 40 KB relief map), lit by the Sun as it is at that moment and turned to the Moon's real libration: north up, east to the left. A dark-limb event — the star vanishing into, or popping out of, the unlit edge of the Moon — is easy to see. At the bright limb only bright stars show against the glare. PA is where on the limb it happens, measured from north through east; the cusp angle is the distance from the nearest horn of the crescent. graze marks a star passing within 3″ of the edge from your place: a few kilometres from a graze line, where it may blink several times behind mountains.

Instrument	dark limb	bright limb
Naked eye	V ≤ 3.0	V ≤ 1.0
Binoculars	V ≤ 6.5	V ≤ 3.5
Small telescope (80 mm)	V ≤ 8.5	V ≤ 5.5
Telescope (200 mm)	V ≤ 9.5	V ≤ 7.0

Those limits are rules of thumb: the dark-limb limit drops by 2.5 magnitudes × (lit fraction − 0.4) in moonglare and by 1 in twilight; events with the Moon under 5° are left out, and daylight events except for the brightest stars. Stars are from Gaia DR3 to G 9.5, with Hipparcos-2 for the brightest and the Yale Bright Star Catalogue for names; the Moon is from the JPL DE431 ephemeris. Times are for the Moon's mean limb, ±2 s — mountains at the edge can move a contact by a few seconds, and much more near a graze.