| Identification Data |
| Common Name | |
| Constellation | Saggitarius |
| Star Name | 13mu Sgr |
| Skymap Number | 18130173 |
| Henry Draper (HD) Number | 166937 |
| Harvard Revised (HR) Number | 6812 |
| SAO Number | 186497 |
| Durchmusterung (DM) Number | SD-21 4908 |
Washington Double Stars (WDS) Number
| 18138-2104
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 268080 |
| Right Ascension (RA) J2000 | 18h 13m 45.809s |
| Declination (Dec) J2000 | -21° 3' 31.801" |
| Position Uncertainty | 0.0095s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00012 |
| Proper Motion in Dec (J2000) | -0.001466 |
| Radial Velocity | -006.0km s-1 |
| Trigonometric Parallax | +0.00011s |
| Trigonometric Parallax Uncertainty | 0.00098s |
| GCI Unit Vector in X (J2000) | 0.056010 |
| GCI Unit Vector in Y (J2000) | -0.931530 |
| GCI Unit Vector in Z (J2000) | -0.359326 |
| Galactic Longitude | 10.01° |
Galactic Latitude
| -1.60°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.84 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
| Observed B Magnitude | 4.02 |
| Observed B-V Colour | +0.185 |
| 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 | 4.0 |
| Observed Photographic Magnitude | 4.0 |
| Morgan Keenan (MK) Spectral Type | B8Iap |
| One-Dimensional Spectral Class | B8 |
| Position Angle | 258 |
| Year of Observation | 1932. AD |
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