| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ursa Minor |
| Right ascension | 15h 29m 34.5775s[2] |
| Declination | +78° 38′ 00.2742″[2] |
| Apparent magnitude (V) | 7.5-<13.2[3] |
| Characteristics | |
| Spectral type | M6e-M9e[3] |
| Variable type | long period variable[3] |
| Astrometry | |
| Proper motion (μ) | RA: −30.986±0.303[2] mas/yr Dec.: 7.006±0.309[2] mas/yr |
| Parallax (π) | 2.5455 ± 0.1578 mas[2] |
| Distance | 1,280 ± 80 ly (390 ± 20 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
S Ursae Minoris (S UMi) is a long period variable star in the constellation Ursa Minor, ranging from magnitude 7.5 to fainter than 13.2 over a period of 331 days.[3]
- ^ Cite error: The named reference
aavsowas invoked but never defined (see the help page). - ^ a b c d e Cite error: The named reference
Gaia DR2was invoked but never defined (see the help page). - ^ a b c d Watson, Christopher (4 January 2010). "S Ursae Minoris". AAVSO Website. American Association of Variable Star Observers. Retrieved 10 March 2015.
- ^ Cite error: The named reference
Simbadwas invoked but never defined (see the help page).