Identification Data |
Common Name | |
Constellation | Eridanus |
Star Name | 25 Eri |
Skymap Number | 3440140 |
Henry Draper (HD) Number | 23413 |
Harvard Revised (HR) Number | 1150 |
SAO Number | 130704 |
Durchmusterung (DM) Number | BD-00 593 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 175371 |
Right Ascension (RA) J2000 | 3h 44m 56.497s |
Declination (Dec) J2000 | -0° 17' 48.192" |
Position Uncertainty | 0.0119s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00404 |
Proper Motion in Dec (J2000) | -0.001966 |
Radial Velocity | +071.3km s-1 |
Trigonometric Parallax | +0.00928s |
Trigonometric Parallax Uncertainty | 0.00088s |
GCI Unit Vector in X (J2000) | 0.555775 |
GCI Unit Vector in Y (J2000) | 0.831317 |
GCI Unit Vector in Z (J2000) | -0.005179 |
Galactic Longitude | 187.49° |
Galactic Latitude
| -40.49°
|
Observational Data |
Observed Visual Magnitude (V) | 5.56 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
Observed B Magnitude | 6.98 |
Observed B-V Colour | +1.422 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.006 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.8 |
Observed Photographic Magnitude | 7.1 |
Morgan Keenan (MK) Spectral Type | K4III |
One-Dimensional Spectral Class | K2 |
Position Angle | |
Year of Observation | AD |