🌌 IC 2143
Object data
| Type | Galaxy |
|---|---|
| Constellation | Lepus |
| Right ascension | 5h46m52.7s (86.7195°) |
| Declination | -18°43'35" (-18.7264°) |
| Magnitude | mag 13.42 |
| Apparent size | 1.9′ × 0.92′ |
| Other designations | IC 2143 |
A galaxy in Lepus.
Midnight transit date (best season to observe and image)
Location: Tokyo (change)
Around Dec 14, 2026
The date it transits around midnight (transit altitude about 36°)
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 17 evening – Oct 18 dawn) · Location: Tokyo (full darkness = end of astronomical dusk to start of dawn, altitude ≥ 15°)
Moon tonight: Waxing crescent (age 5.6 days, 31% illuminated)
Oct 18 0:05 – 4:24
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.
Night (sunset – sunrise)
Full darkness (dusk – dawn)
Moon up (darker = brighter moon)
Best time to observe (thick line)
Now
Sunset 17:03 → Dusk 18:28 → Dawn 4:24 → Sunrise 5:49