Ross 248
From Wikipedia, the free encyclopedia
| Observation data Epoch J2000 |
|
|---|---|
| Constellation (pronunciation) |
Andromeda |
| Right ascension | 23h 41m 54.7s |
| Declination | +44° 10' 30" |
| Apparent magnitude (V) | 12.29 |
| Characteristics | |
| Spectral type | M5.5V |
| U-B color index | 1.49 |
| B-V color index | 1.91 |
| Variable type | Flare star |
| Astrometry | |
| Radial velocity (Rv) | -77.7 km/s |
| Proper motion (μ) | RA: 85 mas/yr Dec.: -1615 mas/yr |
| Parallax (π) | 316.00 ± 1.10 mas |
| Distance | 10.32 ± 0.04 ly (3.16 ± 0.01 pc) |
| Absolute magnitude (MV) | 14.79 |
| Other designations | |
Ross 248 is a red dwarf star approximately 3.2 pc or 10.33 light years from Earth's Solar System. It is the eighth closest star system, and the closest in the constellation Andromeda. This is a flare star that occasionally increases in luminosity. Its nearest neighbor is the Gl 15 Star System (GX and GQ Andromedae), a mere 0.47 pc or 1.54 ly away.
The spacecraft Voyager 2 is travelling on a path headed roughly in the direction of Ross 248. In approximately 40,000 years the spacecraft will make its closest pass to the star, at a distance of ~1.7 light years.
