Galaxy · Barred spiral
IC 1684
IC 1684 is a galaxy in the direction of the constellation Pisces, 187.2 million light-years away.
| Type | Barred spiral (estimated) |
|---|---|
| Constellation | Pisces |
| Distance | 187.2 million light-years (57.40 Mpc) |
| Diameter | 70,100 light-years · 0.8 × the Milky Way |
| Absolute magnitude | magnitude −19.49 |
| Apparent magnitude | magnitude 14.30 |
| Luminosity | 0.27 × the Milky Way |
| Right ascension (J2000) | 1h 22m 53.1s |
| Declination (J2000) | +33° 24′ 49″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.30. Visible from the whole Northern Hemisphere and south to latitude 57° S. North of latitude 57° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 187 million years ago. At that time dinosaurs ruled the Earth. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3,321.0 billion years.