HD 124448 - Misplaced Pages

Star in the constellation Centaurus

HD 124448
Observation data Epoch J2000 Equinox J2000
A light curve for V821 Centauri, plotted from TESS data. Adapted from Jeffery et al. (2020)
Constellation	Centaurus
Right ascension	14 14 58.6293
Declination	−46° 17′ 19.294″
Apparent magnitude (V)	9.94 - 10.03
Astrometry

Proper motion (μ)	RA: −6.544±0.038 mas/yr Dec.: −0.049±0.032 mas/yr
Parallax (π)	0.6240 ± 0.0312 mas
Distance	5,200 ± 300 ly (1,600 ± 80 pc)

Other designations
V821 Cen, HD 124448, HIP 69619, 2MASS J14145863-4617192
Database references
SIMBAD	data

HD 124448, also called Popper's Star and V821 Centauri, is an extreme helium star in the Centaurus constellation. Discovered by astronomer Daniel Popper, this star has a spectral classification of B2-B3 and a radius of 13 R_☉.

References

^ Jeffery, C. Simon; Barentsen, Geert; Handler, Gerald (2020). "TESS photometry of extreme helium stars PV Tel and V821 Cen". Monthly Notices of the Royal Astronomical Society. 495 (1): L135 – L138. arXiv:2006.00946. Bibcode:2020MNRAS.495L.135J. doi:10.1093/mnrasl/slaa075.
^ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
"V821 Cen". General Catalog of Variable Stars. Sternberg Astronomical Institute. Retrieved 24 May 2023.
"HD 124448". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved May 23, 2023.
Schoenberner, D.; Wolf, R. E. A. (1974). "Fine analysis of Popper's star HD 124448". Astronomy and Astrophysics. 37: 87. Bibcode:1974A&A....37...87S.
Popper, Daniel M. (1946). "The Spectrum of HD 124448. Second Note". Publications of the Astronomical Society of the Pacific. 58 (345): 370. Bibcode:1946PASP...58..370P. doi:10.1086/125875. S2CID 121599294.

Bayer	α A (Rigil Kentaurus) B (Toliman) C (Proxima Centauri) β (Hadar) γ (Muhlifain) δ ε ζ (Alnair) η θ (Menkent) ι κ λ μ ν ξ ξ ο ο π ρ σ τ υ υ φ χ ψ
Flamsteed	1 (i) 2 (g) 3 (k) 4 (h)
Variable	R T U V Y RR SV SX BV DY UY V346 V553 V744 V752 V761 (a) V763 (C) V766 V779 V803 V810 V816 (Przybylski's Star) V831 V842 V885 V886 V863 V945 (H) V1032 V1369 V1400
HR	4460 (A) 4466 (C) 4476 (C) 4499 4522 4523 4537 (j) 4546 (B) 4620 (E) 4652 (D) 4682 (F) 4712 (x) 4721 4724 (x) 4732 (G) 4748 (u) 4796 4817 (l) 4831 (w) 4874 (p) 4888 (e) 4889 (n) 4940 (f) 4979 4989 5006 (r) 5035 (J) 5041 (m) 5071 (K) 5089 (d) 5141 (Q) 5172 (M) 5174 (z) 5207 (N) 5222 (y) 5224 5241 5297 5358 (v) 5371 5471 (b) 5485 (c) 5489 (c)
HD	97413 98176 100453 101930 102117 (Uklun) 103197 107914 108236 109749 110113 113538 113766 114386 114729 115600 116434 117207 117618 (Dofida) 121228 121504 124448 125072 125595 131399
Other	2MASS J1126−5003 2M1207 Gaia BH2 GJ 3737 J1407b PSR B1259−63/LS 2883 PSR J1311–3430 WASP-15 (Nyamien) WASP-41 WASP-42 WASP-167/KELT-13

Exoplanets	2M1207b b Centauri b HD 102117 b HD 103197 b HD 109749 b HD 101930 b HD 113538 b c HD 114386 b HD 114729 b HD 117207 b HD 117618 b HD 121504 b HIP 65426 b HIP 67522 b Proxima Centauri b c d WASP-15b

Star clusters	IC 2944 NGC 3766 NGC 4230 NGC 5286 NGC 5281 NGC 5316 NGC 5460 NGC 5617 NGC 5662 ω Scorpius–Centaurus association Stock 16

Nebulae	Boomerang Nebula Fleming 1 G292.0+1.8 IC 2944 NGC 3918 NGC 5307 RCW 79 Southern Crab Nebula SN 185 (RCW 86) SuWt 2

NGC	3783 4444 4603 4622 4650A 4683 4696 4706 4709 4729 4730 4743 4744 4945 4976 5011 A 5026 5090 5091 5102 5114 5128 (Centaurus A) 5161 5253 5291 5398 5408 5419
Other	ESO 269-57 ESO 325-G004 ESO 383-76 ESO 444-46 Fourcade-Figueroa Object IRAS 13224-3809 PKS 1144-379 PKS 1353−341 PKS 1424-418

Galaxy clusters	Abell S740 Shapley Supercluster

Astronomical events	SN 185 SN 1895B SN 1986G