| Identification Data |
| Common Name | |
| Constellation | Taurus |
| Star Name | 77the1Tau |
| Skymap Number | 4280094 |
| Henry Draper (HD) Number | 28307 |
| Harvard Revised (HR) Number | 1411 |
| SAO Number | 93955 |
| Durchmusterung (DM) Number | BD+15 631 |
Washington Double Stars (WDS) Number
| 04287+1552
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 119933 |
| Right Ascension (RA) J2000 | 4h 28m 34.495s |
| Declination (Dec) J2000 | +15° 57' 43.851" |
| Position Uncertainty | 0.0111s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00726 |
| Proper Motion in Dec (J2000) | -0.015066 |
| Radial Velocity | +039.5km s-1 |
| Trigonometric Parallax | +0.02066s |
| Trigonometric Parallax Uncertainty | 0.00085s |
| GCI Unit Vector in X (J2000) | 0.373445 |
| GCI Unit Vector in Y (J2000) | 0.885953 |
| GCI Unit Vector in Z (J2000) | 0.275003 |
| Galactic Longitude | 180.26° |
Galactic Latitude
| -21.97°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.84 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 4.79 |
| Observed B-V Colour | +0.951 |
| 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 | 4.0 |
| Observed Photographic Magnitude | 5.0 |
| Morgan Keenan (MK) Spectral Type | G9IIIFe-0.5 |
| One-Dimensional Spectral Class | K0 |
| Position Angle | 348 |
| Year of Observation | 1993. AD |
