| Identification Data |
| Common Name | |
| Constellation | Scorpius |
| Star Name | 18 Sco |
| Skymap Number | 16150089 |
| Henry Draper (HD) Number | 146233 |
| Harvard Revised (HR) Number | 6060 |
| SAO Number | 141066 |
| Durchmusterung (DM) Number | SD-07 4242 |
Washington Double Stars (WDS) Number
| 16156-0822
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 199464 |
| Right Ascension (RA) J2000 | 16h 15m 37.270s |
| Declination (Dec) J2000 | -8° 22' 9.990" |
| Position Uncertainty | 0.0111s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.01564 |
| Proper Motion in Dec (J2000) | -0.495866 |
| Radial Velocity | +010.6km s-1 |
| Trigonometric Parallax | +0.07130s |
| Trigonometric Parallax Uncertainty | 0.00089s |
| GCI Unit Vector in X (J2000) | -0.435172 |
| GCI Unit Vector in Y (J2000) | -0.888504 |
| GCI Unit Vector in Z (J2000) | -0.145555 |
| Galactic Longitude | 4.70° |
Galactic Latitude
| 29.16°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.49 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
| Observed B Magnitude | 6.15 |
| Observed B-V Colour | +0.657 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.6 |
| Observed Photographic Magnitude | 6.1 |
| Morgan Keenan (MK) Spectral Type | G2Va |
| One-Dimensional Spectral Class | G0 |
| Position Angle | 279 |
| Year of Observation | 1958. AD |
Printer Version