Ross 154
Photo: ESO Online Digitized Sky Survey.
Ross 154 is a nearby red dwarf. Ross 154, also known as V1216 Sagittarii, lies in the eastern part of the constellation Sagittarius, northeast of Kaus Borealis (Lambda Sagittarii) at a distance of only 9.7 light-years (3.0 parsecs). It was discovered in 1925 by Frank Elmore Ross who first reported it in his "Second List of New Proper-Motion Stars," Astronomical Journal (36:856). Its closest neighbor is Barnard's Star, 5.41 light-years (1.66 parsecs) away.
| visual magnitude | 10.43 |
| absolute magnitude | 13.07 |
| spectral type | M3.5Ve |
| luminosity | 0.0005 Lsun |
| surface temperature | 2,700 Ksun |
| radius | 0.24 Rsun |
| mass | 0.17 Msun |
| distance | 9.68 light-years (2.96 pc) |
| position | RA 18h 49m 49.4s, Dec -23° 50' 10" |
| other designations | GCTP 4338, GJ 729, LHS 3414, AC-24 2833-183, HIP 92403 |
