Global InformationIota1 Muscae information
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Musca |
| Right ascension | 13h 25m 07.11942s[1] |
| Declination | −74° 53′ 16.1512″[1] |
| Apparent magnitude (V) | 5.05[2] |
| Characteristics | |
| Spectral type | K0 III[3] |
| U−B color index | +1.01[2] |
| B−V color index | +1.11[2] |
| Astrometry | |
| Radial velocity (Rv) | 27.5±0.8[4] km/s |
| Proper motion (μ) | RA: −107.80[5] mas/yr Dec.: −132.25[5] mas/yr |
| Parallax (π) | 14.7839 ± 0.1205 mas[1] |
| Distance | 221 ± 2 ly (67.6 ± 0.6 pc) |
| Absolute magnitude (MV) | +0.88[6] |
| Details | |
| Radius | 11.78+0.22 −0.47[1] R☉ |
| Luminosity | 56.5±0.6[1] L☉ |
| Temperature | 4,610+96 −42[1] K |
| Other designations | |
ι1 Mus, CPD−74°1057, FK5 3070, HD 116244, HIP 65468, HR 5042, SAO 257041[7] | |
| Database references | |
| SIMBAD | data |
ι1 Muscae, Latinised as Iota1 Muscae, is a solitary[8] star in the southern constellation of Musca, near the southern constellation border with Chamaeleon. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude is 5.05.[2] The star is located around 222 light-years distant from the Sun based on parallax, and is drifting further away with a radial velocity of 27.5 km/s.[4]
This object is an aging giant star with a stellar classification of K0III;[3] a star that has used up its core hydrogen and is cooling and expanding. At present it has nearly 12[1] times the girth of the Sun. The star is radiating 56.5 times the luminosity of the Sun from its swollen photosphere at an effective temperature of about 4,610 K.[1]
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