HD 216770

From Wikipedia, the free encyclopedia
Jump to: navigation, search
HD 216770
Observation data
Epoch 2000      Equinox 2000
Constellation Piscis Austrinus
Right ascension 22h 55m 53.7097s
Declination –26° 39′ 31.547″
Apparent magnitude (V) 8.10
Distance 123.5 ly
(37.89 pc)
Spectral type K1V
Other designations
CD-27°16109, GC 31973, HIP 113238, LTT 9276, NLTT 55283, SAO 191502
Database references
SIMBAD data

HD 216770 is an 8th magnitude star located approximately 124 light-years away in the constellation of Piscis Austrinus. It is an orange dwarf (spectral type K1 V), and is somewhat dimmer and cooler than our Sun.

In 2003 a planet was announced orbiting it by the Geneva Extrasolar Planet Search Team.[1]

The HD 216770 planetary system
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b >0.65 MJ 0.46 118.45 ± 0.55 0.37 ± 0.06
c (unconfirmed) >0.1886 MJ 0.102 12.456 0.3887

See also[edit]

References[edit]

External links[edit]

Coordinates: Sky map 22h 55m 53.7097s, −26° 39′ 31.547″