Identification Data |
Common Name | |
Constellation | Leo |
Star Name | 40 Leo |
Skymap Number | 10190110 |
Henry Draper (HD) Number | 89449 |
Harvard Revised (HR) Number | 4054 |
SAO Number | 99065 |
Durchmusterung (DM) Number | BD+20 2466 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 127314 |
Right Ascension (RA) J2000 | 10h 19m 44.167s |
Declination (Dec) J2000 | +19° 28' 15.291" |
Position Uncertainty | 0.0093s |
Proper Motion in RA (J2000)/cos(Dec) | -0.01626 |
Proper Motion in Dec (J2000) | -0.214766 |
Radial Velocity | +006.5km s-1 |
Trigonometric Parallax | +0.04724s |
Trigonometric Parallax Uncertainty | 0.00082s |
GCI Unit Vector in X (J2000) | -0.854017 |
GCI Unit Vector in Y (J2000) | 0.399433 |
GCI Unit Vector in Z (J2000) | 0.333328 |
Galactic Longitude | 217.13° |
Galactic Latitude
| 54.48°
|
Observational Data |
Observed Visual Magnitude (V) | 4.78 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.25 |
Observed B-V Colour | +0.473 |
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 | 5.0 |
Observed Photographic Magnitude | 5.0 |
Morgan Keenan (MK) Spectral Type | F6IV |
One-Dimensional Spectral Class | F5 |
Position Angle | |
Year of Observation | AD |