| Identification Data |
| Common Name | |
| Constellation | Sagitta |
| Star Name | 13 Sge |
| Skymap Number | 20000011 |
| Henry Draper (HD) Number | 189577 |
| Harvard Revised (HR) Number | 7645 |
| SAO Number | 105522 |
| Durchmusterung (DM) Number | BD+17 4183 |
Washington Double Stars (WDS) Number
| 20001+1731
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 137383 |
| Right Ascension (RA) J2000 | 20h 0m 3.308s |
| Declination (Dec) J2000 | +17° 30' 59.440" |
| Position Uncertainty | 0.0081s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00012 |
| Proper Motion in Dec (J2000) | -0.012266 |
| Radial Velocity | -017.4km s-1 |
| Trigonometric Parallax | +0.00437s |
| Trigonometric Parallax Uncertainty | 0.00073s |
| GCI Unit Vector in X (J2000) | 0.477014 |
| GCI Unit Vector in Y (J2000) | -0.825753 |
| GCI Unit Vector in Z (J2000) | 0.300981 |
| Galactic Longitude | 56.43° |
Galactic Latitude
| -6.49°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.39 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.009 |
| Observed B Magnitude | 6.94 |
| Observed B-V Colour | +1.546 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.011 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.6 |
| Observed Photographic Magnitude | 6.9 |
| Morgan Keenan (MK) Spectral Type | M4IIIa |
| One-Dimensional Spectral Class | M0 |
| Position Angle | 206 |
| Year of Observation | 1966. AD |
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