Chi¹ Orionis

Chi¹ Orionis
Chi1 Orionis A
Chi 1 orionis diagram vectorized.svg
Star map of the Bayers Stars in Orion. Chi1 Orionis is indicated.
Observation data
Epoch J2000      Equinox J2000
Constellation Orion
Right ascension 05h 54m 22.98s [1]
Declination +20° 16′ 34.2″ [1]
Apparent magnitude (V) 4.39
Characteristics
Spectral type G0 V
U−B color index 0.07
B−V color index 0.59
Variable type None
Astrometry
Radial velocity (Rv) -13.4 km/s
Proper motion (μ) RA: -162.54 ± 0.28[1] mas/yr
Dec.: -99.51 ± 0.16[1] mas/yr
Parallax (π) 115.43 ± 0.27[1] mas
Distance 28.26 ± 0.07 ly
(8.66 ± 0.02 pc)
Absolute magnitude (MV) 4.67
Details
Mass 1 M☉
Radius 1.45 R☉
Luminosity 1.08 L☉
Temperature 5,955 ± 6.1[2] K
Metallicity 89-178%
Rotation 24.5 days
Rotational velocity (v sin i) 6 km/s km/s
Age 3–4 × 108[3] years
Other designations
54 Ori, Gl 222 A, HR 2047, BD +20°1162, HD 39587, LTT 11743, GCTP 1354.00, SAO 77705, HIP 27913.

Chi1 Orionis (χ1 Ori, χ1 Orionis) is a star about 28 light years away.[1] It is in the constellation Orion.

χ1 Ori is a main sequence dwarf star of spectral type G0V. It has a faint companion with a mass estimated at about 15% of the mass of the Sun, an orbital period of 14.1 years, and an estimated stellar class of M6. The companion orbits an average distance of 6.1 AU from the primary, but has a fairly high orbital eccentricity, ranging from 3.3 AU out to 8.9 AU from the primary. Because of this red dwarf companion, the likelihood of habitable planets in this system is low.

χ1 Ori is believed to be a stream star member of the Ursa Major Moving Group.

References

  1. ^ a b c d e f van Leeuwen, F. (2007). "HIP 27913". Hipparcos, the New Reduction. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=27842. Retrieved 2009-12-16. 
  2. ^ Kovtyukh et al. (2003). "High precision effective temperatures for 181 F-K dwarfs from line-depth ratios". Astronomy and Astrophysics 411 (3): 559–564. arXiv:astro-ph/0308429. Bibcode 2003A&A...411..559K. doi:10.1051/0004-6361:20031378. http://www.aanda.org/articles/aa/full/2003/46/aa3944/aa3944.html. 
  3. ^ Mamajek, Eric E.; Hillenbrand, Lynne A. (November 2008). "Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics". The Astrophysical Journal 687 (2): 1264–1293. Bibcode 2008ApJ...687.1264M. doi:10.1086/591785. 

External links

v · d · eStars of Orion
Bayer
α (Betelgeuse) • β (Rigel) • γ (Bellatrix) • δ (Mintaka) • ε (Alnilam) • ζ (Alnitak) • η (Algjebba) • θ¹ (Trapezium Cluster: θ¹ A • θ¹ B • θ¹ C • θ¹ D) • θ² • ι (Hatsya) • κ (Saiph) • λ (Meissa) • μ • ν • ξ • ο¹ • ο² • π¹ • π² • π³ (Tabit) • π4 • ρ • σ • τ • υ (Thabit) • φ¹ • φ² • χ¹ • χ² • ψ • ω • b • c • d • e • f¹ • f² • g • h • i • k • l • m • n¹ • n² • o • p • A
Flamsteed
1 (π³, Tabit) • 2 (π²) • 3 (π4) • 4 (ο¹) • 5 • 6 (g) • 7 (π¹) • 9 (ο²) • 11 • 12 • 13 • 14 (i) • 15 • 16 (h) • 17 (ρ) • 18 • 19 (β, Rigel) • 20 (τ) • 21 • 22 (o) • 23 (m) • γ (Bellatrix) • 25 • 26 • 27 (p) • 28 (η, Algjebba) • 29 (e) • 30 (ψ) • 31 • 32 (A) • 33 (n¹) • 34 (δ, Mintaka) • 35 • 36 (υ, Thabit) • 37 (φ¹) • 38 (n²) • 39 (λ, Meissa) • 40 (φ²) • 41 (θ¹, Trapezium Cluster: θ¹ A • θ¹ B • θ¹ C • θ¹ D) • 42 (c) • 43 (θ²) • 44 (ι, Hatsya) • 45 • 46 (ε, Alnilam) • 47 (ω) • 48 (σ) • 49 (d) • 50 (ζ, Alnitak) • 51 (b) • 52 • 53 (κ, Saiph) • 54 (χ¹) • 55 • 56 • 57 • 58 (α, Betelgeuse) • 59 • 60 • 61 (μ) • 62 (χ²) • 63 • 64 • 65 • 66 • 67 (ν) • 68 • 69 (f¹) • 70 (ξ) • 71 • 72 (f²) • 73 • 74 (k) • 75 (l)
Nearby
GJ 3379 • Gliese 205 • Ross 47 • Gliese 223.2 • GJ 1087 • π³ (Tabit) • χ¹
Other
S • HD 36960



Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Chi Orionis — (Chi Ori, χ Orionis, χ Ori) is the name of two stars: Chi1 Orionis (54 Orionis, HD 39587) Chi2 Orionis (62 Orionis, HD 41117) All of them were member of asterism 司怪 (Sī Guài), Deity in Charge of Monsters, Turtle Beak mansion.[1] References ^… …   Wikipedia

  • Chi² Orionis — χ2 Orionis Observation data Epoch J2000.0      Equinox J2000.0 (ICRS) Constellation Orion Right ascension 06h 03m 55.1849s …   Wikipedia

  • Chi Draconis — A/B Location of Chi Draconis …   Wikipedia

  • Chi-Orioniden — Chi Orioniden[1] Aktivitätszeitraum 26. November 15. Dezember Aktivitätsmaximum 2. Dezember Radiantenposition des Maximums RA: 5h 28m DE: +23° ZHR 3 …   Deutsch Wikipedia

  • Orionis — Daten des Sternbildes Orion Deutscher Name Orion Lateinischer Name Orion Lateinischer Genitiv Orionis Lateinische Abkürzung Ori Lage auf Himmelsäquator Rektaszensio …   Deutsch Wikipedia

  • Chi1 Orionis — A Données d observation (Époque J2000.0) Ascension droite 05h 54m 23,0s Déclinaison 20° 16′ 34″ Constellation Orion Magnitude apparente 4,39 …   Wikipédia en Français

  • Chi1 Orionis — Datenbanklinks zu χ1 Orionis Doppelstern χ1 Orionis …   Deutsch Wikipedia

  • Fomalhaut — This article is about the star. For the extrasolar planet, see Fomalhaut b. Fomalhaut Debris ring around Fomalhaut showing location of planet Fomalhaut b imaged by Hubble Space Telescope s coronagraph …   Wikipedia

  • Delta Eridani — δ Eridani Observation data Epoch J2000      Equinox J2000 Constellation Eridanus Right ascension 03h 43m 14.90s [1] …   Wikipedia

  • Mu Herculis — Aa/B/C Historical view of the Hercules constellation showing Mu Herculis (μ Her) as one of stars in the hero s elbow. Observation data Epoch J2000   …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”