Rho Scorpii
From Infogalactic: the planetary knowledge core
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| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Scorpius |
| Right ascension | 15h 56m 53.07624s [1] |
| Declination | −29° 12′ 50.6612″ [1] |
| Apparent magnitude (V) | 3.86 [2] |
| Characteristics | |
| Spectral type | B2IV [3] |
| U−B color index | -0.82 [2] |
| B−V color index | -0.20 [2] |
| Astrometry | |
| Radial velocity (Rv) | -0.40[4] km/s |
| Proper motion (μ) | RA: -15.68[1] mas/yr Dec.: -24.88[1] mas/yr |
| Parallax (π) | 6.91 ± 0.19[1] mas |
| Distance | 470 ± 10 ly (145 ± 4 pc) |
| Absolute magnitude (MV) | -1.94 [5] |
| Other designations | |
| Database references | |
| SIMBAD | data |
Rho Scorpii (ρ Sco, ρ Scorpii) is a binary star in the constellation Scorpius. It is approximately 472 light years from Earth.[1]
The primary component, Rho Scorpii A, is a blue-white B-type subgiant with an apparent magnitude of +3.87. Orbiting it with a separation of 38 arcseconds is the magnitude +12.8 Rho Scorpii B.[6]
References
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- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Lua error in package.lua at line 80: module 'strict' not found. Vizier catalog entry
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Absolute magnitude calculated as
, where 
is the star's absolute magnitude, 
is the star's apparent magnitude, and 
is the star's measured parallax in arcseconds. - ↑ Lua error in package.lua at line 80: module 'strict' not found. Vizier result
