Galaxy · Irregular
DDO 187
DDO 187 is a galaxy in the direction of the constellation Boötes, 7.18 million light-years away.
| Type | Irregular |
|---|---|
| Constellation | Boötes |
| Distance | 7.18 million light-years (2.20 Mpc) |
| Diameter | 3,588 light-years · 0.041 × the Milky Way |
| Absolute magnitude | magnitude −13.00 |
| Apparent magnitude | magnitude 13.71 |
| Luminosity | 6.9 × 10⁻⁴ × the Milky Way |
| Right ascension (J2000) | 14h 15m 56.5s |
| Declination (J2000) | +23° 03′ 19″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.71. Visible from the whole Northern Hemisphere and south to latitude 67° S. North of latitude 67° N it never sets. 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 7.2 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 127.3 billion years.