HD 20003

HD 20003
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Hydrus
Right ascension	03^h 07^m 37.91875^s ^[1]
Declination	−72° 19′ 18.8010″ ^[1]
Spectral type	G8V ^[1]

HD 20003 is a star in the constellation Hydrus. Its apparent magnitude is 8.37. It is a yellow main sequence star of spectral type G8V a little cooler and smaller than our sun around 143 light years away.^[1] It has two planets that are around 12 and 13.5 times as massive as the earth that have periods of just under 12 and 34 days respectively. These were detected by the HARPS survey in 2011.^[2]

References

1 2 3 4 SIMBAD, (accessed 12 September 2013)
↑ Mayor, M.; et al. (2011). "The HARPS Search for Southern Extra-solar Planets XXXIV. Occurrence, Mass Distribution and Orbital Properties of Super-Earths and Neptune-mass Planets". arXiv:1109.2497 [astro-ph.EP].

Stars of Hydrus

Bayer	α β γ δ ε ζ η¹ η² θ ι κ λ μ ν π¹ π² σ τ¹ τ²

Variable	VW WX BL BN BT CN CT

HR	58 87 420 460 467 468 505 571 584 600 959 1053 1064

HD	10180 11944 20003

Gliese	GJ 3021

Other	AB8 SMSS J031300.36-670839.3 WISEPC J014807.25-720258.7

List

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