🌌 IC 1984
Object data
| Type | Galaxy |
|---|---|
| Constellation | Horologium |
| Right ascension | 3h39m50.4s (54.9600°) |
| Declination | -47°04'33" (-47.0758°) |
| Magnitude | mag 16.39 |
| Apparent size | 0.75′ × 0.25′ |
| Other designations | IC 1984 |
A galaxy in Horologium.
Midnight transit date (best season to observe and image)
Location: Tokyo (change)
Around Nov 11, 2026
The date it transits around midnight (transit altitude about 7°)
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 15 evening – Oct 16 dawn) · Location: Tokyo (full darkness = end of astronomical dusk to start of dawn, altitude ≥ 15°)
Moon tonight: Waxing crescent (age 3.8 days, 16% illuminated) — Little moonlight — a good time for faint objects
It never reaches 15° at this location (maximum altitude at transit: about 7°).
Night (sunset – sunrise)
Full darkness (dusk – dawn)
Moon up (darker = brighter moon)
Best time to observe (thick line)
Now
Sunset 17:06 → Dusk 18:31 → Dawn 4:23 → Sunrise 5:47