Galaxy · Spiral
NGC 5681
NGC 5681 is a galaxy in the direction of the constellation Boötes, 368.0 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Boötes |
| Distance | 368.0 million light-years (112.84 Mpc) |
| Diameter | 121,800 light-years · 1.4 × the Milky Way |
| Absolute magnitude | magnitude −21.37 |
| Apparent magnitude | magnitude 13.89 |
| Luminosity | 1.5 × the Milky Way |
| Right ascension (J2000) | 14h 35m 42.9s |
| Declination (J2000) | +8° 18′ 02″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.89. Visible from the whole Northern Hemisphere and south to latitude 82° S. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 368 million years ago. At that time complex animals were spreading through the seas and over the land; there were no dinosaurs yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6,528.7 billion years.