Galaxy · Irregular
BTS146
BTS146 is a galaxy in the direction of the constellation Canes Venatici, 27.7 million light-years away.
| Type | Irregular |
|---|---|
| Constellation | Canes Venatici |
| Distance | 27.7 million light-years (8.50 Mpc) |
| Diameter | 2,740 light-years · 0.031 × the Milky Way |
| Absolute magnitude | magnitude −12.80 |
| Apparent magnitude | magnitude 16.85 |
| Luminosity | 5.8 × 10⁻⁴ × the Milky Way |
| Right ascension (J2000) | 12h 40m 02.1s |
| Declination (J2000) | +38° 00′ 02″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 16.85. Visible from the whole Northern Hemisphere and south to latitude 52° S. North of latitude 52° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 28 million years ago. At that time the dinosaurs were gone and mammals were diversifying; there was no human lineage yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 491.8 billion years.