<templatestyles src="Template:Sky/styles.css" />Coordinates: Sky map 03h 09m 04s, +49° 36′ 48″

Iota Persei

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Template:Short description

Iota Persei
Template:Location mark
Location of ι Persei (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Perseus
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 4.062[2]
Characteristics
Evolutionary stage Main sequence
Spectral type G0V[3] or F9.5 V[4]
U−B Template:Engvar +0.119[2]
B−V Template:Engvar +0.595[2]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[1] km/s
Proper motion (μ) RA: +1,265.475 mas/yr[1]
Dec.: −91.50 mas/yr[1]
Parallax (π)94.5412±0.1448 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)[1]
Absolute magnitude (MV)3.94[5]
Details[6]
Mass1.08Template:Snd1.1 Template:Solar mass
Radius1.417 Template:Solar radius
Luminosity2.22 Template:Solar luminosity
Surface gravity (log g)4.17 cgs
Temperature5,921 K
Metallicity [Fe/H]+0.09 dex
Rotational velocity (v sin i)4.1[7] km/s
Age3.2–4.1[7][8] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[9]
Database references
SIMBADdata

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ι Persei, Latinized as Iota Persei, is a single[10] star in the northern constellation Perseus. This object is visible to the naked eye as a faint, yellow-white hued point of light with an apparent visual magnitude of 4.1.[2] It is located 34.5 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +49 km/s.[1] Iota Persei has a relatively high proper motion across the sky.[9]

File:Iota Persei.jpg
ι Persei in optical light

This is a late F- or early G-type main-sequence star with a stellar classification of around G0V.[3] It is about 3–4[7][8] billion years old and is spinning slowly with a projected rotational velocity of 4 km/s.[7] The star has 1.1 times the mass of the Sun and 1.4 times the Sun's radius. It is radiating more than double the luminosity of the Sun from its photosphere at an effective temperature of 5,921 K.[6]

There is a 12.4-magnitude line-of-sight companion star that is not believed to be gravitationally associated with Iota Persei.[10] This object is located at an angular separation of Script error: No such module "val". from the primary along a position angle of 125°, as of 2014.[11]

Naming

In Chinese, Script error: No such module "Lang". (Script error: No such module "Lang".), 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, the Chinese name for ι Persei itself is Script error: No such module "Lang". (Script error: No such module "Lang"., Template:Langx).[12]

References

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  1. ↑ a b c d e f g Template:Cite DR3
  2. ↑ a b c d Script error: No such module "citation/CS1".
  3. ↑ a b Script error: No such module "citation/CS1".
  4. ↑ Script error: No such module "citation/CS1".
  5. ↑ Script error: No such module "citation/CS1".
  6. ↑ a b Script error: No such module "Citation/CS1". Iota Persei's database entry at VizieR.
  7. ↑ a b c d Script error: No such module "Citation/CS1". Note: see VizieR catalogie J/ApJS/159/141 Script error: No such module "webarchive"..
  8. ↑ a b Script error: No such module "Citation/CS1".
  9. ↑ a b Template:Cite simbad
  10. ↑ a b Script error: No such module "citation/CS1".
  11. ↑ Script error: No such module "citation/CS1".
  12. ↑ Template:In lang AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 11 日 Script error: No such module "webarchive".

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External links

  • Script error: No such module "citation/CS1".
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  • Script error: No such module "citation/CS1".

Template:Stars of Perseus

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