HIP 70849

HIP 70849

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Lupus
Right ascension	14h 29m 18.563s
Declination	−46° 27′ 49.74″
Apparent magnitude (V)	10.4
Characteristics
Spectral type	K7V
Apparent magnitude (B)	11.6
Apparent magnitude (J)	7.639
Apparent magnitude (H)	7.006
Apparent magnitude (K)	6.790
B−V color index	1.2
Astrometry
Proper motion (μ)	RA: −47.12 ± 2.15 mas/yr Dec.: −203.52 ± 1.93 mas/yr
Parallax (π)	42.42 ± 2.09 mas
Distance	77 ± 4 ly (24 ± 1 pc)
Absolute magnitude (MV)	8.5
Details
Mass	0.62 M☉
Radius	0.67 ± 0.04 R☉
Luminosity	0.097 ± 0.012 L☉
Surface gravity (log g)	4.34 cgs
Temperature	3950 ± 100 K
Other designations
CD−45°9206, Gliese 550.3, LTT 5717, NLTT 37446, NSV 6678, PPM 760399
Database references
SIMBAD	data
Exoplanet Archive	data
Extrasolar Planets Encyclopaedia	data

HIP 70849 is a 10th magnitude K-type main sequence star located approximately 78 light years away in the constellation Lupus. This star, which resembles a brighter red dwarf, is smaller, cooler, dimmer, and less massive than our Sun. In 2009, a gas giant planet/brown dwarf was found in orbit around it.

There is also a potential T4.5 brown dwarf companion orbiting ~9000AU from HIP 70849.

Planetary system

HIP 70849 b is an extrasolar planet orbiting the star. It has more than five times the mass of Jupiter and takes more than 3000 days to orbit at a semimajor axis of more than 3.5 AU.

The HIP 70849 planetary system

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	>5 MJ	>3.5	>3000	?	—	—

See also

• List of extrasolar planets