HD 23596

HD 23596
Observation data Epoch J2000.0 Equinox J2000.0
Constellation	Perseus
Right ascension	03^h 48^m 00.374^s^[1]
Declination	+40° 31′ 50.29″^[1]
Apparent magnitude (V)	7.24
Characteristics
Spectral type	F8
Astrometry

Proper motion (μ)	RA: 53.95 ± 0.48^[1] mas/yr Dec.: 21.12 ± 0.42^[1] mas/yr
Parallax (π)	19.83 ± 0.49^[1] mas
Distance	164 ± 4 ly (50 ± 1 pc)

Details

Mass	1.2 ± 0.04^[2] M_☉
Radius	1.53 ± 0.04^[2] R_☉
Luminosity	2.63 ± 0.03^[2] L_☉
Surface gravity (log g)	4.14 ± 0.03^[2] cgs
Temperature	5953 ± 48^[2] K
Age	5.0 ± 0.7^[2] Gyr

Other designations
BD+40º835, HIP 17747, SAO 39110

HD 23596 is a 7th magnitude star approximately 164 light years away^[1] in the constellation Perseus. The visual luminosity of the star is 2.63 times greater than our Sun.^[2] HD 23596 dwarfs the Sun is terms of physical properties; including mass, radius, age, metallicity, and temperature. The spectrum of the star is F8.

Planetary system

In June 2002, a massive long-period planet orbiting the star was announced.^[3]

The HD 23596 planetary system^[3]
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	>8.10 M_J	2.88	1565 ± 21	0.292 ± 0.023	—	—

References

1 2 3 4 5 6 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
1 2 3 4 5 6 7 Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951.
1 2 Perrier, C.; et al. (2003). "The ELODIE survey for northern extra-solar planets. I. Six new extra-solar planet candidates". Astronomy and Astrophysics. 410 (3): 1039–1049. arXiv:astro-ph/0308281. Bibcode:2003A&A...410.1039P. doi:10.1051/0004-6361:20031340.

External links

"Notes for star HD 23596". The Extrasolar Planet Encyclopaedia.
"HD 23596 – Star". SIMBAD.

Coordinates: 03^h 48^m 00.3739^s, +40° 31′ 50.287″

Stars of Perseus

Bayer	α (Mirfak) β (Algol) γ δ ε ζ η (Miram) θ ι κ (Misam) λ μ ν ξ (Menkib) ο (Atik) π (Gorgonea Secunda) ρ (Gorgonea Tertia) σ τ φ ψ ω (Gorgonea Quarta) b

Flamsteed	1 2 3 4 5 7 (χ) 8 9 10 11 12 14 16 17 20 21 24 29 30 31 32 34 36 40 42 43 48 49 50 52 53 54 55 56 57 58 59 1 Aur

Variable	S T U V X Z RS RT RV RW RY ST SU SV TZ UV UX UY VX XX XY XZ YZ AB AG AR AS AW AX BM DM DY FO GK IK IP IQ IU IW IX IZ KP KS KT KW LX V351 V356 V357 V361 V376 V380 V386 V396 V400 V423 V432 V440 V459 V461 V471 V472 V473 V480 V490 V492 V493 V505 V509 V520 (61 And) V521 V545 V551 V572 V573 V575 V576 V621 V718

HR	470 526 529 538 540 621 641 787 792 810 820 831 842 846 849 864 865 876 885 886 890 894 918 920 923 930 949 950 956 964 966 969 973 975 979 986 991 1001 1019 1034 1037 1041 1047 1051 1056 1059 1074 1097 1113 1127 1130 1133 1141 1160 1164 1176 1191 1197 1198 1207 1215 1226 1234 1286 1301 1330 1333 1337 1344 1371 1390 1419 1424 1482 1489 1493 1500 1514

HD	13519 14433 14434 16691 16760 17092 17245 17605 21684 22781 23301 23596 25329 26702 29587

Gliese	GJ 1068

Other	BD+31 643 BD+48 740 G 38-29 G 95-57 GD 61 GRO J0422+32 HAT-P-15 HAT-P-29 IRAS 04296+3429 L1448-IRS2E LkHα 101 LRLL 54361 NGC 1333 13 NGC 1333 IRAS 2A NGC 1333 IRAS 4A NGC 1333 IRAS 4B NSV 1436 PSR B0355+54 PSR J0357+3205

List

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