✨ M2
Object data
| Type | Globular cluster |
|---|---|
| Constellation | Aquarius |
| Right ascension | 21h33m27.0s (323.3625°) |
| Declination | -0°49'24" (-0.8233°) |
| Magnitude | mag 6.5 |
| Apparent size | 16′ |
| Other designations | NGC 7089 |
A bright globular cluster in Aquarius. Made up of about 150,000 stars, it is easy to find even with binoculars.
Midnight transit date (best season to observe and image)
Location: Tokyo (change)
The date it transits around midnight (transit altitude about 53°)
This date has already passed this year. Next year (2027) it will be around Aug 11.
For about 2–3 weeks either side of this date, the object stays high from evening to dawn — its observing season.
Best time to observe tonight
Tonight (Oct 10 evening – Oct 11 dawn) · Location: Tokyo (full darkness = end of astronomical dusk to start of dawn, altitude ≥ 15°)
Moon tonight: Waning crescent (age 28.6 days, 1% illuminated) — Little moonlight — a good time for faint objects
Hours of full darkness (end of astronomical dusk to start of dawn) when it is above 15° — the darkest sky, mostly clear of buildings and trees.
Sunset 17:13 → Dusk 18:37 → Dawn 4:19 → Sunrise 5:43