🌌 IC 305
Object data
| Type | Galaxy |
|---|---|
| Constellation | Perseus |
| Right ascension | 3h15m04.0s (48.7665°) |
| Declination | +37°51'36" (+37.8600°) |
| Magnitude | mag 15.57 |
| Apparent size | 0.79′ × 0.64′ |
| Other designations | IC 305 |
A galaxy in Perseus.
Midnight transit date (best season to observe and image)
Location: Tokyo (change)
Around Nov 5, 2026
The date it transits around midnight (transit altitude about 88°)
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 13 evening – Oct 14 dawn) · Location: Tokyo (full darkness = end of astronomical dusk to start of dawn, altitude ≥ 15°)
Moon tonight: Waxing crescent (age 2.0 days, 5% illuminated) — Little moonlight — a good time for faint objects
Oct 13 18:51 – Oct 14 4:21
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 17:09 → Dusk 18:33 → Dawn 4:21 → Sunrise 5:46