| Identification Data |
| Common Name | |
| Constellation | Scorpius |
| Star Name | 2 Sco |
| Skymap Number | 15530094 |
| Henry Draper (HD) Number | 142114 |
| Harvard Revised (HR) Number | 5904 |
| SAO Number | 183896 |
| Durchmusterung (DM) Number | CD-2412352 |
Washington Double Stars (WDS) Number
| 15536-2520
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 264824 |
| Right Ascension (RA) J2000 | 15h 53m 36.719s |
| Declination (Dec) J2000 | -25° 19' 37.711" |
| Position Uncertainty | 0.0153s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00106 |
| Proper Motion in Dec (J2000) | -0.025467 |
| Radial Velocity | -009.6km s-1 |
| Trigonometric Parallax | +0.00752s |
| Trigonometric Parallax Uncertainty | 0.00118s |
| GCI Unit Vector in X (J2000) | -0.473580 |
| GCI Unit Vector in Y (J2000) | -0.769884 |
| GCI Unit Vector in Z (J2000) | -0.427786 |
| Galactic Longitude | 346.88° |
Galactic Latitude
| 21.61°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.67 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.007 |
| Observed B Magnitude | 4.58 |
| Observed B-V Colour | -0.093 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.008 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.1 |
| Observed Photographic Magnitude | 4.5 |
| Morgan Keenan (MK) Spectral Type | B2.5Vn |
| One-Dimensional Spectral Class | B3 |
| Position Angle | 272 |
| Year of Observation | 1980. AD |
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