Star cluster
NGC 1641
Open star cluster · 3.3 billion years
An open cluster of stars born together from the same gas cloud in the Milky Way’s disc; the Galaxy’s tidal forces will disperse it within a few hundred million years. Position, distance, age and member count come from the MWSC catalogue; the total brightness is roughly estimated from the member count.
| Type | Star cluster |
|---|---|
| Constellation | Reticulum |
| Distance | 985 pc (3.2 thousand ly) |
| Age | 3.3 billion years |
| Member stars (MWSC) | 78 |
| Reddening E(B−V) | 0.10 |
| Source | MWSC (Kharchenko et al. 2013) |
| Right ascension (J2000) | 4h 35m 25.8s |
| Declination (J2000) | −65° 44′ 24″ |
In the sky
Visible from the whole Southern Hemisphere and north to latitude 24° N. South of latitude 24° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around 1188 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 57 million years.