HD 106906 information

HD 106906
	; Star map shows star position on the northern edge of the constellation Crux
Observation data; Epoch J2000.0 Equinox J2000.0
Constellation	Crux
Right ascension	12h 17m 53.191430s
Declination	−55° 58′ 31.8904″
Apparent magnitude (V)	7.80
Characteristics
Spectral type	F5 V
B−V color index	0.458±0.003
Astrometry
Radial velocity (Rv)	+10.2±1.7 km/s
Proper motion (μ)	RA: −39.014 mas/yr ; Dec.: −12.872 mas/yr
Parallax (π)	9.6774 ± 0.0429 mas
Distance	337 ± 1 ly ; (103.3 ± 0.5 pc)
Absolute magnitude (MV)	2.99
Details
Radius	2.03+0.11; −0.10 R☉
Luminosity	6.56±0.04 L☉
Temperature	6,484+157; −168 K
Metallicity [Fe/H]	−0.04±0.08 dex
Age	13±2 Myr
Other designations
	CD−55°4537, HD 106906, HIP 59960, SAO 239819, 2MASS J12175319-5558319
Database references
SIMBAD	data

HD 106906 is a binary star^[6] system in the southern constellation of Crux. It is too faint to be visible to the naked eye, having a combined apparent visual magnitude of 7.80.^[2] The distance to this system is approximately 337 light years based on parallax, and it is receding from the Sun with a radial velocity of +10 km/s.^[2] It is a member of the Lower Centaurus–Crux group of the Scorpius–Centaurus OB association of co-moving stars.^[4]

This is a double-lined spectroscopic binary system consisting of two F-type main-sequence stars with similar masses and a matching stellar classification of F5 V.^[6] Their orbital period is less than 100 days.^[4]

^ ^a ^b ^c ^d ^e ^f ^g ^h Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
^ ^a ^b ^c ^d ^e ^f ^g Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
^ Cite error: The named reference houk1979 was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference Rodet2017 was invoked but never defined (see the help page).
^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference Lagrange2016 was invoked but never defined (see the help page).

[GaiaDR2-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).

[Anderson2012-2] ^ ^a ^b ^c ^d ^e ^f ^g Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).

[houk1979-3] Cite error: The named reference houk1979 was invoked but never defined (see the help page).

[Rodet2017-4] Cite error: The named reference Rodet2017 was invoked but never defined (see the help page).

[SIMBAD-5] Cite error: The named reference SIMBAD was invoked but never defined (see the help page).

[Lagrange2016-6] Cite error: The named reference Lagrange2016 was invoked but never defined (see the help page).

Observation data Epoch J2000.0 Equinox J2000.0
Star map shows star position on the northern edge of the constellation Crux
Constellation	Crux
Right ascension	12^h 17^m 53.191430^s^[1]
Declination	−55° 58′ 31.8904″^[1]
Apparent magnitude (V)	7.80^[2]
Characteristics
Spectral type	F5 V^[3]
B−V color index	0.458±0.003^[2]
Astrometry

Radial velocity (R_v)	+10.2±1.7^[2] km/s
Proper motion (μ)	RA: −39.014^[1] mas/yr Dec.: −12.872^[1] mas/yr
Parallax (π)	9.6774 ± 0.0429 mas^[1]
Distance	337 ± 1 ly (103.3 ± 0.5 pc)
Absolute magnitude (M_V)	2.99^[2]

Details

Radius	2.03+0.11 −0.10^[1] `R`_☉
Luminosity	6.56±0.04^[1] `L`_☉
Temperature	6,484+157 −168^[1] K
Metallicity [Fe/H]	−0.04±0.08^[2] dex
Age	13±2^[4] Myr

Other designations
CD−55°4537, HD 106906, HIP 59960, SAO 239819, 2MASS J12175319-5558319^[5]
Database references
SIMBAD	data

HD 106906 information

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