HD 125595

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HD 125595
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus
Right ascension 14h 21m 23.186s[1]
Declination −40° 23′ 38.21″[1]
Apparent magnitude (V) 9.03
Characteristics
Spectral type K4V[2]
Apparent magnitude (B) 10.13
Apparent magnitude (J) 7.097
Apparent magnitude (H) 6.608
Apparent magnitude (K) 6.447
B−V color index 1.10
Astrometry
Radial velocity (Rv) 3.1 km/s
Proper motion (μ) RA: −561.46 ± 1.05[1] mas/yr
Dec.: −67.06 ± 0.85[1] mas/yr
Parallax (π) 35.77 ± 1.04[1] mas
Distance 91 ± 3 ly
(28.0 ± 0.8 pc)
Absolute magnitude (MV) 6.84
Details
Mass 0.68 M
Radius 0.78 ± 0.07 R
Luminosity 0.239 ± 0.020 L
Surface gravity (log g) 4.29 cgs
Temperature 4590 ± 100 K
Metallicity 0.02
Rotation 37.2±2.0 d[2]
Other designations
CD−39°8857, GCRV 64739, Gliese 545.1, HIP 70170, LHS 2900, LPM 523, LTT 5648, NLTT 37029, PPM 319432
Database references
SIMBAD data
Exoplanet Archive data
Extrasolar Planets
Encyclopaedia
data

HD 125595 is a 9th magnitude K-type main sequence star located approximately 89 light years away in the constellation Centaurus. This star is smaller, cooler, dimmer, and less massive than our Sun. Also its metal content is 4% more than the Sun. In 2009, a gas giant planet was found in orbit around the star.

Planetary system[edit]

HD 125595 b is an extrasolar planet which orbits the star. This planet has at least 14 times the mass of Earth and takes 9 days and 16 hours to orbit the star at a semimajor axis of 0.081 AU.[3]

The HD 125595 planetary system[3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥0.045 MJ 0.0809 ± 0.0014 9.6737 ± 0.0039 0

See also[edit]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752Freely accessible. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. ^ a b Suárez Mascareño, A.; et al. (September 2015), "Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators", Monthly Notices of the Royal Astronomical Society, 452 (3): 2745–2756, Bibcode:2015MNRAS.452.2745S, arXiv:1506.08039Freely accessible, doi:10.1093/mnras/stv1441. 
  3. ^ a b Ségransan, D.; et al. (2011). "The HARPS search for southern extra-solar planets. XXIX. Four new planets in orbit around the moderately active dwarfs HD 63765, HD 104067, HD 125595, and HIP 70849". Astronomy and Astrophysics. 535. A54. Bibcode:2011A&A...535A..54S. arXiv:1107.0339Freely accessible. doi:10.1051/0004-6361/200913580. 

Coordinates: Sky map 14h 21m 23.1859s, −40° 23′ 38.211″