1 Centauri

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1 Centauri

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1 Centauri
Observation data Epoch J2000.0 Equinox J2000.0
Constellation	Centaurus
Right ascension	13^h45^m41.2^s
Declination	−33°02′38″
Apparent magnitude (V)	+4.23
Characteristics
Spectral type	F3IV
U−B color index	0.00
B−V color index	+0.38
Variable type	none
Astrometry

Radial velocity (R_v)	−22 km/s
Proper motion (μ)	RA: −461.85 mas/yr Dec.: −146.17 mas/yr
Parallax (π)	51.91 ± 0.75 mas
Distance	62.83 ly (19.26 pc)
Absolute magnitude (M_V)	+2.81^[1]

Details

Mass	1.35^[1] M_☉
Rotation	9.9 days^[1]
Rotational velocity (v sin i)	86^[1] km/s

Other designations
i Centauri, HR 5168, HD 119756, Gl 525.1, CD−32°9603, FK5 506, HIP 67153, SAO 204812, GC 18593
Database references
SIMBAD	data

1 Centauri is a star in the constellation Centaurus.

1 Centauri is a yellow-white F-type subgiant with an apparent magnitude of +4.23. It is approximately 62.83 light years from Earth.

References

^ ^a ^b ^c ^d Pizzolato, N.; Maggio, A.; Sciortino, S. (September 2000), "Evolution of X-ray activity of 1-3 Msun late-type stars in early post-main-sequence phases", Astronomy and Astrophysics 361: 614–628, Bibcode 2000A&A...361..614P

← «Bright» star systems within 60–70 light-years →

Star systems within 60–70 light-years from Earth with brightest member's absolute magnitude of +8.5 or brighter.

Giant
star

F III	Rho Puppis «Tureis» (62.7 ± 0.8 ly; 1 star)

K III	Theta Centauri «Menkent» (60.9 ± 0.9 ly; 1 star) • Aldebaran (65.1 ± 1.3 ly; 2 stars) • Epsilon Scorpii «Wei» (65.4 ± 1.1 ly; 1 star) • Alpha Arietis «Hamal» (65.9 ± 1.3 ly; 1 star, 1 planet: planet b)

A V (White)	Beta Arietis «Sheratan» (59.6* ± 0.8 ly; 2 stars)‡* • Beta Pictoris (62.9 ± 0.6 ly; 1 star, 1 planet: planet b)

F
(Yellow-
white)

IV	Psi Velorum (59.7* ± 1.0 ly; 2 stars)‡* • Mu Virginis (60.9 ± 1.1 ly; 1 star)‡ • Alpha Chamaeleontis (63.5 ± 0.6 ly; 1 star) • Alpha Trianguli «Metallah» (64.1 ± 1.0 ly; 2 stars) • Eta Crucis (64.2 ± 0.6 ly; 2 stars) • Tau Cygni (66.4 ± 0.8 ly; 4 stars) • Theta Draconis (68.3 ± 0.8 ly; 2 stars) • Iota Virginis «Syrma» (69.8 ± 1.3 ly; 1 star)‡

V	Chi Cancri (59.2* ± 1.0 ly; 1 star)‡* • Eta Corvi «Avis Satyra» (59.4* ± 0.7 ly; 1 star)‡* • Delta Equulei «Pherasauval» (60.0 ± 1.0 ly; 2 stars)‡ • Theta Cygni (60.7 ± 0.5 ly; 2 stars) • HR 1249 (62.7 ± 0.9 ly; 1 star) • 1 Centauri (62.8 ± 0.9 ly; 2 stars) • Omicron Aquilae (63.3 ± 0.9 ly; 3 stars) • c (45) Boötis (64.3 ± 1.0 ly; 2 stars) • Alpha Caeli (65.7 ± 0.7 ly; 2 stars) • Kappa Tucanae (66.04 ± 1.2 ly; 4 stars) • Gamma Doradus (66.2 ± 0.7 ly; 1 star) • Sigma² Ursae Majoris (66.7 ± 0.9 ly; 3 stars) • HR 1686 (68.4 ± 0.8 ly; 2 stars, 1 planet: planet b) • B Carinae (69.8+5.4 −4.7 ly; 1 star)‡

G
(Yellow)

IV	94 Aquarii (67.6+8.3 −6.6 ly; 2 stars)‡ • Gliese 848.4 (69.4 ± 1.2 ly; 1 star, 1 planet: planet b)‡

V	HD 217107 (64.3 ± 1.0 ly; 1 star, 2 planets: planet b • planet c) • 53 Aquarii (65.5 ± 3.5 ly; 2 stars) • GJ 3255 (67.4 ± 1.5 ly; 1 star, 1 planet: planet b) • 51 Arietis (69.0 ± 1.3 ly; 1 star)‡ • c (16) Cygni (69.8 ± 0.8 ly; 2 stars, 1 planet: planet Bb)‡

K
(Orange)

IV	Epsilon Reticuli (59.5* ± 0.5 ly; 1 star, 1 planet: planet b)‡* • Eta Serpentis «Tang» (61.8 ± 0.9 ly; 1 star) • Nu² Canis Majoris (64.7 ± 0.9 ly; 1 star, 1 planet: planet b)

V	GJ 4130 (62.8 ± 1.1 ly; 2 stars, 1 planet: planet b) • Gliese 710 (63.0 ± 1.8 ly; 1 star) • HD 192263 (64.9 ± 1.5 ly; 1 star, 1 planet: planet b) • GJ 3769 (66.6 ± 1.5 ly; 1 star, 1 planet: planet b) • GJ 3651 (69.5 ± 1.5 ly; 1 star, 1 planet: planet b)‡ • GJ 4291 (70.2* ± 2.0 ly; 1 star, 1 planet: planet b)‡*

In left column are stellar classes of primary members of star systems. ‡Distance error margin extends out of declared distance interval. Italic are systems possibly located within declared distance interval, but probably not.

v t e Stars of Centaurus

Bayer	α (Rigil Kent) β (Hadar/Agena) γ δ ε ζ η θ (Menkent) ι κ λ μ ν ξ¹ ξ² ο¹ ο² π ρ σ τ υ¹ υ² φ χ ψ a b c¹ c² d e f g h i j k l m n p r u v w x¹ x² y z A B C¹ C² C³ D E F G H J K M N Q

Flamsteed	1 (i) 2 (g) 3 (k) 4 (h) 5 (θ, Menkent)

List

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