2 Scorpii

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2 Scorpii
Observation data
Epoch J2000      Equinox J2000
Constellation Scorpius
2 Scorpii A
Right ascension 15h 53m 36.73s
Declination −25° 19′ 37.5″
Apparent magnitude (V) 4.59
2 Scorpii B
Right ascension
Declination
Apparent magnitude (V) 6.98
Characteristics
Spectral type B2.5Vn/?
U−B color index -0.66
B−V color index -0.07
Astrometry
Radial velocity (Rv) -9.3 ± 1.6 km/s
Proper motion (μ) RA: -14.4 ± 0.8 mas/yr
Dec.: -23.5 ± 0.8 mas/yr
Parallax (π) 6.49 ± 0.51 mas
Distance 433.2 ly
(132.8 pc)
Absolute magnitude (MV) -1.39
Details
Mass 8.9 M
Radius 3.3 R
Luminosity 296 L
Temperature 20000 K
Age 25 Myr
Other designations
HD142114, HIP77840, HR5904, SAO183896, CD-24 12352, WDS 15536-2520.

2 Scorpii (A Scorpii) is a double star system in the constellation Scorpius. 2 Scorpii A and 2 Scorpii B are separated by 2.13 arcseconds.

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