Identification Data |
Common Name | |
Constellation | Eridanus |
Star Name | 20 Eri |
Skymap Number | 3360034 |
Henry Draper (HD) Number | 22470 |
Harvard Revised (HR) Number | 1100 |
SAO Number | 149063 |
Durchmusterung (DM) Number | SD-17 699 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 213138 |
Right Ascension (RA) J2000 | 3h 36m 17.410s |
Declination (Dec) J2000 | -17° 28' 1.447" |
Position Uncertainty | 0.0121s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00233 |
Proper Motion in Dec (J2000) | -0.009767 |
Radial Velocity | +014.0km s-1 |
Trigonometric Parallax | +0.00689s |
Trigonometric Parallax Uncertainty | 0.00082s |
GCI Unit Vector in X (J2000) | 0.559705 |
GCI Unit Vector in Y (J2000) | 0.772422 |
GCI Unit Vector in Z (J2000) | -0.300158 |
Galactic Longitude | 207.47° |
Galactic Latitude
| -50.85°
|
Observational Data |
Observed Visual Magnitude (V) | 5.25 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
Observed B Magnitude | 5.13 |
Observed B-V Colour | -0.119 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.3 |
Observed Photographic Magnitude | 5.3 |
Morgan Keenan (MK) Spectral Type | B9.5p |
One-Dimensional Spectral Class | A0 |
Position Angle | |
Year of Observation | AD |