Identification Data |
Common Name | |
Constellation | Hydra |
Star Name | 46gam Hya |
Skymap Number | 13180143 |
Henry Draper (HD) Number | 115659 |
Harvard Revised (HR) Number | 5020 |
SAO Number | 181543 |
Durchmusterung (DM) Number | BD-22 3554 |
Washington Double Stars (WDS) Number
| 13189-2310
|
Positional Data |
Position and Proper Motion (PPM) Number | 261484 |
Right Ascension (RA) J2000 | 13h 18m 55.296s |
Declination (Dec) J2000 | -23° 10' 17.444" |
Position Uncertainty | 0.0087s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00496 |
Proper Motion in Dec (J2000) | -0.041166 |
Radial Velocity | -005.4km s-1 |
Trigonometric Parallax | +0.02469s |
Trigonometric Parallax Uncertainty | 0.00070s |
GCI Unit Vector in X (J2000) | -0.865359 |
GCI Unit Vector in Y (J2000) | -0.310361 |
GCI Unit Vector in Z (J2000) | -0.393485 |
Galactic Longitude | 311.11° |
Galactic Latitude
| 39.26°
|
Observational Data |
Observed Visual Magnitude (V) | 3.00 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 3.91 |
Observed B-V Colour | +0.914 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 3.3 |
Observed Photographic Magnitude | 4.1 |
Morgan Keenan (MK) Spectral Type | G8IIIa |
One-Dimensional Spectral Class | G5 |
Position Angle | 95 |
Year of Observation | 1891. AD |