HD 168746

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HD 168746
Observation data
Epoch J2000      Equinox J2000
Constellation Serpens
Right ascension 18h 21m 49.7827s[1]
Declination −11° 55′ 21.652″[1]
Apparent magnitude (V) 7.95[2]
Characteristics
Spectral type G5V[2]
B−V color index 0.713[3]
Astrometry
Proper motion (μ) RA: −22.946±0.054[1] mas/yr
Dec.: −68.402±0.040[1] mas/yr
Parallax (π)23.79 ± 0.31[1] mas
Distance137 ± 2 ly
(42.0 ± 0.5 pc)
Details[3]
Mass0.88±0.01 M
Luminosity1.10 L
Surface gravity (log g)4.50±0.15 cgs
Temperature5610±30 K
Metallicity [Fe/H]−0.06±0.05 dex
Rotational velocity (v sin i)1.0 km/s
Other designations
BD-11° 4606, HIP 90004[2]
Database references
SIMBADdata
Exoplanet Archivedata

HD 168746 is an 8th magnitude star in the constellation of Serpens. It is very similar to our Sun, a yellow dwarf star (spectral class G5V). It is not visible to the unaided eye, but is easily visible with binoculars or a small telescope. In 2000 a planet was announced orbiting it.[4]

The HD 168746 planetary system[3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b >0.23 MJ 0.065 6.403 ± 0.001 0.081 ± 0.029

See also[edit]

References[edit]

External links[edit]

Coordinates: Sky map 18h 21m 49.7832s, −11° 55′ 21.660″