HD 85390

From Wikipedia, the free encyclopedia
Jump to: navigation, search
HD 85390
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Vela
Right ascension 09h 50m 02.497s[1]
Declination –49° 47′ 24.97″[1]
Apparent magnitude (V) 8.55
Characteristics
Spectral type K1.5V
Apparent magnitude (B) 9.40
Apparent magnitude (J) 7.012
Apparent magnitude (H) 6.612
Apparent magnitude (K) 6.491
B−V color index 0.85
Astrometry
Radial velocity (Rv) 32.5 km/s
Proper motion (μ) RA: 24.32 ± 0.5[1]mas/yr
Dec.: –60.59 ± 0.52[1] mas/yr
Parallax (π) 30.89 ± 0.62[1] mas
Distance 106 ± 2 ly
(32.4 ± 0.6 pc)
Absolute magnitude (MV) 5.896
Details
Mass 0.80 M
Radius 0.82 ± 0.06 R
Luminosity 0.431 ± 0.031 L
Surface gravity (log g) 4.38 cgs
Temperature 5170 ± 100 K
Metallicity [Fe/H] –0.07 dex
Other designations
CD–49°4727, HIP 48235, PPM 314721, SAO 221526
Database references
SIMBAD data
Exoplanet Archive data
Extrasolar Planets
Encyclopaedia
data

HD 85390 is a main sequence star of spectral class K1 located approximately 106 light years away[1] in the constellation Vela, appearing as 8.55 magnitude star. This star is smaller, cooler, dimmer, and less massive than our Sun. Also its metal content is seven-sixths as much as the Sun. In 2009, a planet with a minimum mass of about 1/7 of Jupiter's was found in orbit around the star.

The HD 85390 planetary system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥42.0 ± 3.6 M 1.52 ± 0.04 788 ± 25 0.41 ± 0.12

See also[edit]

References[edit]

Coordinates: Sky map 09h 50m 02.4969s, −49° 47′ 24.959″