| Identification Data |
| Common Name | |
| Constellation | Delphinus |
| Star Name | 1 Del |
| Skymap Number | 20300078 |
| Henry Draper (HD) Number | 195325 |
| Harvard Revised (HR) Number | 7836 |
| SAO Number | 106172 |
| Durchmusterung (DM) Number | BD+10 4303 |
Washington Double Stars (WDS) Number
| 20303+1054
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 138473 |
| Right Ascension (RA) J2000 | 20h 30m 17.962s |
| Declination (Dec) J2000 | +10° 53' 45.327" |
| Position Uncertainty | 0.0106s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00131 |
| Proper Motion in Dec (J2000) | +0.003567 |
| Radial Velocity | -015.5km s-1 |
| Trigonometric Parallax | +0.00576s |
| Trigonometric Parallax Uncertainty | 0.00098s |
| GCI Unit Vector in X (J2000) | 0.598804 |
| GCI Unit Vector in Y (J2000) | -0.778269 |
| GCI Unit Vector in Z (J2000) | 0.189026 |
| Galactic Longitude | 54.66° |
Galactic Latitude
| -16.21°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.06 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.006 |
| Observed B Magnitude | 6.03 |
| Observed B-V Colour | -0.025 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.007 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.9 |
| Observed Photographic Magnitude | 6.1 |
| Morgan Keenan (MK) Spectral Type | A1e(shell) |
| One-Dimensional Spectral Class | A0 |
| Position Angle | 349 |
| Year of Observation | 1980. AD |
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