| Identification Data |
| Common Name | |
| Constellation | Delphinus |
| Star Name | 3eta Del |
| Skymap Number | 20330237 |
| Henry Draper (HD) Number | 195943 |
| Harvard Revised (HR) Number | 7858 |
| SAO Number | 106248 |
| Durchmusterung (DM) Number | BD+12 4378 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 138601 |
| Right Ascension (RA) J2000 | 20h 33m 57.042s |
| Declination (Dec) J2000 | +13° 1' 38.117" |
| Position Uncertainty | 0.0149s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00523 |
| Proper Motion in Dec (J2000) | +0.021966 |
| Radial Velocity | -025.0km s-1 |
| Trigonometric Parallax | +0.01885s |
| Trigonometric Parallax Uncertainty | 0.00082s |
| GCI Unit Vector in X (J2000) | 0.606329 |
| GCI Unit Vector in Y (J2000) | -0.762597 |
| GCI Unit Vector in Z (J2000) | 0.225415 |
| Galactic Longitude | 57.03° |
Galactic Latitude
| -15.80°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.39 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 5.47 |
| Observed B-V Colour | +0.081 |
| 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 | 5.2 |
| Observed Photographic Magnitude | 5.5 |
| Morgan Keenan (MK) Spectral Type | A3IVs |
| One-Dimensional Spectral Class | A2 |
| Position Angle | |
| Year of Observation | AD |
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