Identification Data |
Common Name | |
Constellation | Eridanus |
Star Name | 22 Eri |
Skymap Number | 3400089 |
Henry Draper (HD) Number | 22920 |
Harvard Revised (HR) Number | 1121 |
SAO Number | 130652 |
Durchmusterung (DM) Number | SD-05 715 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 186057 |
Right Ascension (RA) J2000 | 3h 40m 38.333s |
Declination (Dec) J2000 | -5° 12' 38.542" |
Position Uncertainty | 0.0091s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00001 |
Proper Motion in Dec (J2000) | -0.003666 |
Radial Velocity | +015.7km s-1 |
Trigonometric Parallax | +0.00441s |
Trigonometric Parallax Uncertainty | 0.00075s |
GCI Unit Vector in X (J2000) | 0.568930 |
GCI Unit Vector in Y (J2000) | 0.817356 |
GCI Unit Vector in Z (J2000) | -0.090819 |
Galactic Longitude | 192.10° |
Galactic Latitude
| -44.18°
|
Observational Data |
Observed Visual Magnitude (V) | 5.53 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.39 |
Observed B-V Colour | -0.141 |
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 | 5.5 |
Observed Photographic Magnitude | 5.5 |
Morgan Keenan (MK) Spectral Type | B9IIIpSi4200 |
One-Dimensional Spectral Class | B8 |
Position Angle | |
Year of Observation | AD |