Iota Persei
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Perseus |
| Right ascension | 03h 09m 04.02s[1] |
| Declination | +49° 36′ 47.8″[1] |
| Apparent magnitude (V) | 4.05 |
| Characteristics | |
| Spectral type | G0 V |
| U−B color index | 0.12 |
| B−V color index | 0.60 |
| Variable type | None |
| Astrometry | |
| Radial velocity (Rv) | +50.0 km/s |
| Proper motion (μ) | RA: +1262.41[1] mas/yr Dec.: –91.50[1] mas/yr |
| Parallax (π) | 94.87 ± 0.23[1] mas |
| Distance | 34.38 ± 0.08 ly (10.54 ± 0.03 pc) |
| Absolute magnitude (MV) | 3.94 |
| Details | |
| Mass | 1.35 ± 0.08[2] M☉ |
| Radius | 1.412 ± 0.009[3] R☉ |
| Luminosity | 2.181 ± 0.032[3] L☉ |
| Surface gravity (log g) | 4.31[2] cgs |
| Temperature | 5,963 ± 5.1[4] K |
| Metallicity [Fe/H] | +0.09[5] dex |
| Rotational velocity (v sin i) | 4.1[2] km/s |
| Age | 3.2–4.1[2][5] Gyr |
| Other designations | |
Iota Persei (Iota Per, ι Persei, ι Per) is a main sequence dwarf star in the constellation Perseus. It is somewhat larger and greater in mass than the Sun, and is located about 34 light years distant. Iota Persei has a relatively high proper motion across the sky, and moves at a net velocity of 92 km/s, relative to the Sun.
No sub-stellar companions to this star have yet been found. There is a 12th-magnitude line-of-sight companion star that is not believed to be gravitationally associated with Iota Persei.
Naming
In Chinese, 大陵 (Dà Líng), meaning Mausoleum, refers to an asterism consisting of ι Persei, 9 Persei, τ Persei, κ Persei, β Persei, ρ Persei, 16 Persei and 12 Persei. Consequently, ι Persei itself is known as 大陵三 (Dà Líng sān, English: the Third Star of Mausoleum.).[6]
Cultural references
- The planet Grainne in the book Freehold, by Michael Z. Williamson, is described as orbiting Iota Persei.
References
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- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found. Vizier catalog entry
- ↑ 2.0 2.1 2.2 2.3 Lua error in package.lua at line 80: module 'strict' not found. Note: see VizieR catalogie J/ApJS/159/141.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.. See Table 10.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 11 日
