🌌 NGC 6239
Object data
| Type | Galaxy |
|---|---|
| Constellation | Hercules |
| Right ascension | 16h50m04.9s (252.5205°) |
| Declination | +42°44'23" (+42.7397°) |
| Magnitude | mag 12.4 |
| Apparent size | 2.3′ × 1.07′ |
| Other designations | NGC 6239 |
A galaxy in Hercules.
Midnight transit date (best season to observe and image)
Location: Tokyo (change)
The date it transits around midnight (transit altitude about 83°)
This date has already passed this year. Next year (2027) it will be around May 31.
For about 2–3 weeks either side of this date, the object stays high from evening to dawn — its observing season.
Next best time to observe
Tomorrow night (Oct 11 evening – Oct 12 dawn) · Location: Tokyo (full darkness = end of astronomical dusk to start of dawn, altitude ≥ 15°)
There is no good time left tonight, so the next chance — tomorrow night (Oct 11 evening – Oct 12 dawn) — is shown.
Moon tonight: New moon (age 29.2 days, 0% illuminated) — Little moonlight — a good time for faint objects
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 17:11 → Dusk 18:36 → Dawn 4:19 → Sunrise 5:44