| Identification Data |
| Common Name | |
| Constellation | Eridanus |
| Star Name | 55 Eri |
| Skymap Number | 4430088 |
| Henry Draper (HD) Number | 30020 |
| Harvard Revised (HR) Number | 1505 |
| SAO Number | 131442 |
| Durchmusterung (DM) Number | SD-09 969 |
Washington Double Stars (WDS) Number
| 04436-0848
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 187260 |
| Right Ascension (RA) J2000 | 4h 43m 34.744s |
| Declination (Dec) J2000 | -8° 47' 39.541" |
| Position Uncertainty | 0.0167s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00195 |
| Proper Motion in Dec (J2000) | -0.029367 |
| Radial Velocity | +040.km s-1 |
| Trigonometric Parallax | +0.00804s |
| Trigonometric Parallax Uncertainty | 0.00139s |
| GCI Unit Vector in X (J2000) | 0.323456 |
| GCI Unit Vector in Y (J2000) | 0.933810 |
| GCI Unit Vector in Z (J2000) | -0.152888 |
| Galactic Longitude | 205.96° |
Galactic Latitude
| -32.37°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.78 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.009 |
| Observed B Magnitude | 7.18 |
| Observed B-V Colour | +0.399 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.012 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 6.8 |
| Observed Photographic Magnitude | 7.2 |
| Morgan Keenan (MK) Spectral Type | F4IIIpSr |
| One-Dimensional Spectral Class | F5 |
| Position Angle | 318 |
| Year of Observation | 1980. AD |
