🌌 IC 3421
Object data
| Type | Galaxy |
|---|---|
| Constellation | Coma Berenices |
| Right ascension | 12h29m38.8s (187.4115°) |
| Declination | +26°13'50" (+26.2306°) |
| Magnitude | mag 15.48 |
| Apparent size | 0.69′ × 0.53′ |
| Other designations | IC 3421 |
A galaxy in Coma Berenices.
Midnight transit date (best season to observe and image)
Location: Tokyo (change)
The date it transits around midnight (transit altitude about 81°)
This date has already passed this year. Next year (2027) it will be around Mar 26.
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 20 evening – Oct 21 dawn) · Location: Tokyo (full darkness = end of astronomical dusk to start of dawn, altitude ≥ 15°)
Moon tonight: First quarter (age 8.3 days, 59% illuminated) — Bright moonlight this night (faint objects may be hard to shoot)
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 17:00 → Dusk 18:25 → Dawn 4:27 → Sunrise 5:52