| Identification Data |
| Common Name | |
| Constellation | Serpens |
| Star Name | 55xi Ser |
| Skymap Number | 17370129 |
| Henry Draper (HD) Number | 159876 |
| Harvard Revised (HR) Number | 6561 |
| SAO Number | 160700 |
| Durchmusterung (DM) Number | SD-15 4621 |
Washington Double Stars (WDS) Number
| 17376-1524
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 233350 |
| Right Ascension (RA) J2000 | 17h 37m 35.201s |
| Declination (Dec) J2000 | -15° 23' 54.806" |
| Position Uncertainty | 0.0141s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00272 |
| Proper Motion in Dec (J2000) | -0.061366 |
| Radial Velocity | -042.8km s-1 |
| Trigonometric Parallax | +0.03093s |
| Trigonometric Parallax Uncertainty | 0.00103s |
| GCI Unit Vector in X (J2000) | -0.094136 |
| GCI Unit Vector in Y (J2000) | -0.959495 |
| GCI Unit Vector in Z (J2000) | -0.265532 |
| Galactic Longitude | 10.61° |
Galactic Latitude
| 8.66°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.54 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 3.82 |
| Observed B-V Colour | +0.279 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 3.6 |
| Observed Photographic Magnitude | 3.8 |
| Morgan Keenan (MK) Spectral Type | F0IVDeltaSct |
| One-Dimensional Spectral Class | A5 |
| Position Angle | 132 |
| Year of Observation | 1987. AD |
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