| Identification Data |
| Common Name | Alya |
| Constellation | Serpens |
| Star Name | 63the1Ser |
| Skymap Number | 18560046 |
| Henry Draper (HD) Number | 175638 |
| Harvard Revised (HR) Number | 7141 |
| SAO Number | 124068 |
| Durchmusterung (DM) Number | BD+04 3916 |
Washington Double Stars (WDS) Number
| 18562+0412
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 166832 |
| Right Ascension (RA) J2000 | 18h 56m 13.182s |
| Declination (Dec) J2000 | +4° 12' 12.942" |
| Position Uncertainty | 0.0212s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00252 |
| Proper Motion in Dec (J2000) | +0.027067 |
| Radial Velocity | -046.0km s-1 |
| Trigonometric Parallax | +0.02473s |
| Trigonometric Parallax Uncertainty | 0.00161s |
| GCI Unit Vector in X (J2000) | 0.242199 |
| GCI Unit Vector in Y (J2000) | -0.967454 |
| GCI Unit Vector in Z (J2000) | 0.073301 |
| Galactic Longitude | 37.22° |
Galactic Latitude
| 0.85°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.61 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.78 |
| Observed B-V Colour | +0.167 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.5 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | A5V |
| One-Dimensional Spectral Class | A5 |
| Position Angle | 104 |
| Year of Observation | 1984. AD |
