1 Centauri

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Not to be confused with A centauri.

1 Centauri
Observation data Epoch J2000.0 Equinox J2000.0
Constellation	Centaurus
Right ascension	13^h 45^m 41.24^s^[1]
Declination	−33° 02′ 37.4″^[1]
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: -462.49 ± 0.18^[1] mas/yr Dec.: -146.49 ± 0.16^[1] mas/yr
Parallax (π)	51.54 ± 0.19^[1] mas
Distance	63.3 ± 0.2 ly (19.40 ± 0.07 pc)
Absolute magnitude (M_V)	+2.81^[2]

Details

Mass	1.35^[2] M_☉
Rotation	9.9 days^[2]
Rotational velocity (v sin i)	86^[2] 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 63 light years from Earth.

References

↑ 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
↑ 2.0 2.1 2.2 2.3 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

← Star systems within 60–65 light-years →

Star systems (including brown dwarf systems) within 60–65 light-years from Earth.

Giant star

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

K III	Theta Centauri «Menkent» (60.9 ± 0.9 ly; 1 star) Nu² Canis Majoris (64.7 ± 0.9 ly; 1 star, 1 planet: b)

A V (White)	Beta Pictoris (62.9 ± 0.6 ly; 1 star, 1 planet: b)

F
(Yellow-white)

IV	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)

V	Delta Equulei «Pherasauval» (60.0 ± 1.0 ly; 2 stars) HR 244 (60.6 ± 0.7 ly; 1 star) Theta Cygni (60.7 ± 0.5 ly; 2 stars) HR 8061 (61.1 ± 2.6 ly; 3 stars) Tau Piscis Austrini (61.1 ± 1.0 ly; 1 star) 6 Ceti (61.6 ± 0.9 ly; 1 star) 110 Herculis (62.3 ± 0.8 ly; 1 star) HR 3625 (62.4 ± 1.1 ly; 1 star) HR 1249 (62.7 ± 0.9 ly; 1 star) 1 Centauri (62.8 ± 0.9 ly; 1 star) Omicron Aquilae (63.3 ± 0.9 ly; 3 stars) c Ursae Majoris (63.8 ± 0.9 ly; 2 stars) 74 Orionis (64.0 ± 1.1 ly; 1 star) c (45) Boötis (64.3 ± 1.0 ly; 2 stars) 22 Lyncis (64.9 ± 1.1 ly; 2 stars)

G
(Yellow)

IV	HR 7683 (61.6 ± 0.6 ly; 2 stars) HD 217107 (64.3 ± 1.0 ly; 1 star, 2 planets: b c)

V	15 Leonis Minoris (60.1 ± 0.8 ly; 1 star) Gliese 161 (60.2 ± 0.9 ly; 1 star) HR 8148 (61.1 ± 1.3 ly; 2 stars) HD 4747 (61.4 ± 1.2 ly; 1 star, 1 brown dwarf) HR 2643 (62.3 ± 1.0 ly; 1 star) Gliese 292.2 (62.7 ± 2.3 ly; 1 star) HD 43587 (63.0 ± 1.0 ly; 4 stars) Gliese 775.1 (63.1 ± 1.0 ly; 1 star) Gliese 790 (63.3 ± 1.0 ly; 1 star) HR 6465 (63.5 ± 1.1 ly; 1 star) Gliese 204.1 (63.8 ± 0.6 ly; 1 star) GJ 3859 (63.9 ± 0.7 ly; 1 star) GJ 3383 (64.0+8.5 −6.7 ly; 1 star) GJ 3867 (64.2 ± 1.3 ly; 1 star) HD 59747 (64.2 ± 1.7 ly; 1 star) HD 220140 (64.4 ± 0.8 ly; 1 star) HR 3430 (65.0 ± 1.3 ly; 2 stars) Gliese 530 (65.0 ± 1.1 ly; 1 star)

K
(Orange)

IV	Eta Serpentis «Tang» (61.8 ± 0.9 ly; 1 star)

V	HD 53143 (60.0 ± 0.6 ly; 1 star) Gliese 339 (60.1 ± 1.3 ly; 2 stars) GJ 2102 (60.2 ± 1.2 ly; 1 star) HD 35329 (60.2 ± 1.2 ly; 1 star) GJ 4134 (60.4+9.0 −6.9 ly; 1 star) Gliese 315 (60.4 ± 1.2 ly; 1 star) Gliese 509 (60.4 ± 2.5 ly; 2 stars) HD 156985 (60.4 ± 0.8 ly; 1 star) Gliese 610 (60.5 ± 1.5 ly; 1 star) Gliese 106 (60.5 ± 2.8 ly; 1 star) Gliese 499 (60.7 ± 2.2 ly; 2 stars) Gliese 254 (60.8 ± 2.0 ly; 1 star) HD 152606 (60.9 ± 1.0 ly; 1 star) Gliese 902.1 (60.9 ± 1.3 ly; 1 star) GJ 1094 (61.0 ± 2.3 ly; 1 star) HD 206804 (61.1 ± 1.9 ly; 2 stars) Gliese 715 (61.2 ± 1.2 ly; 1 star) Gliese 249 (61.4 ± 1.4 ly; 1 star) HD 170573 (61.5 ± 1.4 ly; 1 star) Gliese 296 (61.5+ 14.3 ± 9.7 ly; 1 star) Gliese 583 (61.6 ± 1.8 ly; 1 star) GJ 4287 (61.6 ± 2.3 ly; 2 stars) Gliese 773 (61.6 ± 1.8 ly; 2 stars) Gliese 100 (61.7 ± 2.3 ly; 3 stars) Gliese 689 (62.0 ± 0.9 ly; 1 star) HD 139477 (62.2 ± 0.9 ly; 1 star) Gliese 646 (62.4 ± 2.4 ly; 3 stars) Gliese 576 (62.6 ± 2.5 ly; 1 star) GJ 1246 (62.6 ± 1.4 ly; 1 star) ADS 10075 (62.6 ± 1.4 ly; 2 stars) Gliese 825.3 (62.7 ± 1.5 ly; 1 star) GJ 3546 (62.7+11.4 −8.4 ly; 1 star) GJ 1283 (62.8 ± 1.4 ly; 1 star) HD 189733 (62.8 ± 1.1 ly; 2 stars, 1 planet: b) Gliese 710 (63.0 ± 1.8 ly; 1 star) Gliese 900 (63.0 ± 2.2 ly; 3 stars) GJ 1126 (63.1 ± 1.1 ly; 2 stars) Gliese 45 (63.1 ± 1.3 ly; 1 star) Gliese 816.1 (63.2 ± 0.9 ly; 2 stars) GJ 9126 (63.3+36.4 −16.9 ly; 1 star) Gliese 894.5 (63.5 ± 1.6 ly; 1 star) Gliese 59 (63.6 ± 1.1 ly; 2 stars) Gliese 571.1 (63.6 ± 2.3 ly; 1 star) HD 130004 (63.7 ± 1.2 ly; 1 star) Gliese 906 (64.2 ± 2.1 ly; 1 star) Gliese 81.2 (64.3 ± 1.0 ly; 1 star) Gliese 140.1 (64.4 ± 2.3 ly; 2 stars) GJ 3678 (64.4 ± 1.5 ly; 1 star) EQ Virginis (64.5 ± 1.3 ly; 1 star) Gliese 586 (64.8 ± 1.5 ly; 3 stars) GJ 1164 (64.8+4.4 −3.9 ly; 2 stars) HD 192263 (64.9 ± 1.5 ly; 1 star, 1 planet: b) HD 35112 (64.9 ± 2.0 ly; 1 star) HD 216520 (65.0 ± 0.8 ly; 1 star)

M V (Red dwarf)	HD 274255 (63.3+4.9 −4.3 ly; 1 star) HIP 38594 (63.8 ± 2.0 ly; 1 star) GJ 3634 (64.5+2.0 −1.9 ly; 1 star, 1 planet: b)

White
dwarf

DQ	WD 0806-661 (63.0 ± 2.0 ly; 1 star, 1 brown dwarf)

Brown
dwarf

L	Kelu-1 (60.9 ± 2.3 ly; 2 (3?) brown dwarfs) WISE 0049+0441 (~62.6 ly; 1 brown dwarf) DENIS-P J020529.0-115925 (64.5+2.0 −1.9 ly; 3 brown dwarfs)

T	WISE 2301+0216 (~60.7 ly; 1 brown dwarf) WISE 0150+3827 (~61.3 ly; 1 brown dwarf) WISE 2157+2659 (~61.6 ly; 1 brown dwarf) WISE 1711+3500 (62.0* ± 9.8 ly; 2 brown dwarfs)* WISE 1721+1117 (~62.3 ly; 1 brown dwarf) WISE 0032-4946 (~62.9 ly; 1 brown dwarf) WISE 0812+4021 (~63.6 ly; 1 brown dwarf) WISE 0612-3036 (~64.9 ly; 1 brown dwarf) WISE 0929+0409 (~64.9 ly; 1 brown dwarf)

In left column are stellar classes of primary members of star systems. Bold are systems containing at least one component with absolute magnitude of +8.5 or brighter. Italic are systems without known trigonometric parallax.

v t e Stars of Centaurus

Bayer	α (Rigil Kentaurus) 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

Flamsteed	1 (i) 2 (g) 3 (k) 4 (h)

Variable	R T V RR RU RV SV SX SZ UW UY XX AZ BB BH BK BV DY KK V346 V436 V442 V485 V553 V636 V716 V743 V744 V752 V757 V761 (a) V763 (C¹) V765 V766 V767 V768 V788 V789 V790 V795 V801 V803 V808 V809 V810 V815 V816 (Przybylski's Star) V817 V821 V823 V824 V827 V828 V831 V834 V836 V838 V841 V842 V854 V857 V863 V869 V871 V883 V885 V914 V918 V928 V945 (H) V947 V961 V964 V992 V1019 V1025 V1051 V1052 V1154

HR	4318 4321 4350 4353 4354 4360 4364 4370 4372 4393 4396 4398 4403 4409 4411 4413 4415 4417 4423 4447 4453 4460 (A) 4462 4466 (C²) 4470 4472 4475 4476 (C³) 4487 4499 4502 4508 4513 4516 4519 4522 4523 4524 4537 (j) 4541 4546 (B) 4551 4556 4557 4563 4568 4570 4582 4600 4620 (E) 4631 4637 4648 4652 (D) 4658 4675 4682 (F) 4712 (x¹) 4713 4714 4718 4721 4724 (x²) 4732 (G) 4734 4748 (u) 4782 4788 4794 4796 4817 (l) 4818 4831 (w) 4836 4838 4850 4871 4872 4874 (p) 4879 4880 4882 4885 4888 (e) 4889 (n) 4903 4906 4922 4940 (f) 4941 4944 4947 4951 4970 4972 4973 4979 4980 4982 4985 4988 4989 4991 4996 4999 5006 (r) 5008 5016 5024 5027 5029 5035 (J) 5036 5038 5039 5041 (m) 5043 5046 5048 5058 5060 5061 5063 5065 5071 (K) 5089 (d) 5092 5103 5104 5113 5117 5118 5121 5122 5124 5130 5136 5140 5141 (Q) 5151 5152 5155 5157 5172 (M) 5174 (z) 5175 5176 5198 5206 5207 (N) 5208 5212 5217 5222 (y) 5224 5230 5234 5236 5239 5241 5251 5252 5259 5266 5268 5281 5286 5289 5294 5297 5308 5318 5319 5325 5349 5357 5358 (v) 5371 5376 5398 5400 5403 5417 5419 5428 5432 5439 5446 5449 5456 5461 5466 5471 (b) 5474 5485 (c¹) 5489 (c²) 5508 5542 5549 5558 5561 5562 5572 5579 5585 5587

HD	96660 97413 98176 99145 100826 101545 101930 102117 103197 104080 104747 104839 107914 109675 109749 113538 113766 114386 114729 117207 117618 119727 121504 123227 123247 124314 125072 125595

Other	2M1207 BPM 37093 Centaurus X-3 (Krzeminski's Star) Centaurus X-4 Hen 3-600 NGC 5408 X-1 Nova Centauri 2013 Proxima Centauri PSR J1210-5226 4U 1145-619 4U 1323-62 WASP-41 WR 50 WR 55

List

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