Iota Andromedae
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(Redirected from Ι Andromedae)
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 Location of ι Andromedae (circled) |
|
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 38m 08.20130s[1] |
| Declination | +43° 16′ 05.0649″[1] |
| Apparent magnitude (V) | +4.29[2] |
| Characteristics | |
| Spectral type | B8 V[3] |
| U−B color index | –0.29[4] |
| B−V color index | –0.11[4] |
| Astrometry | |
| Radial velocity (Rv) | –0.5[2] km/s |
| Proper motion (μ) | RA: +27.64[1] mas/yr Dec.: -1.02[1] mas/yr |
| Parallax (π) | 6.53 ± 0.16[1] mas |
| Distance | 500 ± 10 ly (153 ± 4 pc) |
| Details | |
| Surface gravity (log g) | 3.35[5] cgs |
| Temperature | 12,620[6] K |
| Metallicity [Fe/H] | –0.19 ± 0.14[5] dex |
| Rotational velocity (v sin i) | 70[7] km/s |
| Other designations | |
Iota Andromedae (ι And, ι Andromedae) is a star in the constellation Andromeda. It has an apparent magnitude of +4.29[2] and is approximately 500 light years from Earth.[1]
Iota Andromedae is a B-type main sequence star with a stellar classification of B8 V. It is among the least variable stars observed during the Hipparcos mission.[5]
Name
- In the catalogue of stars in the Calendarium of Al Achsasi Al Mouakket, this star was designated Keff al-Salsalat (كف المسلسلة - kaf al-musalsala), which was translated into Latin as Manus Catenata, meaning palm of chained woman.[8]
- In Chinese, 螣蛇 (Téng Shé), meaning Flying Serpent, refers to an asterism consisting of ι Andromedae, α Lacertae, 4 Lacertae, π2 Cygni, π1 Cygni, HD 206267, ε Cephei, β Lacertae, σ Cassiopeiae, ρ Cassiopeiae, τ Cassiopeiae, AR Cassiopeiae, 9 Lacertae, 3 Andromedae, 7 Andromedae, 8 Andromedae, λ Andromedae, κ Andromedae and ψ Andromedae. Consequently, ι Andromedae itself is known as 螣蛇二十二 (Téng Shé èrshíèr, English: the Twenty Second Star of Flying Serpent)[9]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 7 日
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