HD 34445

HD 34445
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Orion
Right ascension 05h 17m 40.98s[1]
Declination +07° 21 12.1[1]
Apparent magnitude (V) 7.32
Characteristics
Spectral type G0
Apparent magnitude (B) 7.94
B−V color index 0.62
Variable type none
Astrometry
Radial velocity (Rv)–79.4 km/s
Proper motion (μ) RA: -0.46 ± 0.74[1] mas/yr
Dec.: -147.17 ± 0.43[1] mas/yr
Parallax (π)21.52 ± 0.66[1] mas
Distance152 ± 5 ly
(46 ± 1 pc)
Absolute magnitude (MV)4.05
Details
Mass1.07 M
Radius1.38 R
Luminosity2.01 L
Surface gravity (log g)4.21 cgs
Temperature5836 K
Metallicity+0.14
Rotation~22 days
Rotational velocity (v sin i)2.7 ± 0.5 km/s
Age8.5 ± 2.0 Gyr
Other designations
BD+07°855, HIP 24681, PPM 148717, SAO 112601
Database references
SIMBADdata
Exoplanet Archivedata
Extrasolar Planets
Encyclopaedia
data

HD 34445 is a 7th magnitude G-type star located approximately 152 light years away in the constellation Orion. This star is larger, hotter, brighter, and more massive than our Sun. Also its metal content is 40% greater than the Sun. In 2004, a gas giant planet was found in orbit around the star. But it wasn’t until 2009 that this planet was confirmed.

The HD 34445 planetary system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥0.79 ± 0.07 MJ 2.07 ± 0.02 1049 ± 11 0.27 ± 0.07

See also

References

Coordinates: 05h 17m 40.9786s, +07° 21′ 12.036″


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