🌌 IC 247
Object data
| Type | Galaxy |
|---|---|
| Constellation | Cetus |
| Right ascension | 2h40m08.8s (40.0365°) |
| Declination | -11°44'02" (-11.7338°) |
| Magnitude | mag 14.74 |
| Apparent size | 0.88′ × 0.64′ |
| Other designations | IC 247 |
A galaxy in Cetus.
Midnight transit date (best season to observe and image)
Location: Tokyo (change)
Around Oct 27, 2026
The date it transits around midnight (transit altitude about 43°)
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 12 evening – Oct 13 dawn) · Location: Tokyo (full darkness = end of astronomical dusk to start of dawn, altitude ≥ 15°)
Moon tonight: Waxing crescent (age 1.1 days, 1% illuminated) — Little moonlight — a good time for faint objects
Oct 12 20:49 – Oct 13 4:20
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 17:10 → Dusk 18:35 → Dawn 4:20 → Sunrise 5:45