Identification Data |
Common Name | |
Constellation | Hydra |
Star Name | 29 Hya |
Skymap Number | 9270041 |
Henry Draper (HD) Number | 81728 |
Harvard Revised (HR) Number | 3744 |
SAO Number | 136861 |
Durchmusterung (DM) Number | SD-08 2678 |
Washington Double Stars (WDS) Number
| 09272-0913
|
Positional Data |
Position and Proper Motion (PPM) Number | 192386 |
Right Ascension (RA) J2000 | 9h 27m 14.640s |
Declination (Dec) J2000 | -9° 13' 25.365" |
Position Uncertainty | 0.0167s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00116 |
Proper Motion in Dec (J2000) | -0.003967 |
Radial Velocity | +030.km s-1 |
Trigonometric Parallax | +0.00250s |
Trigonometric Parallax Uncertainty | 0.00146s |
GCI Unit Vector in X (J2000) | -0.775813 |
GCI Unit Vector in Y (J2000) | 0.610263 |
GCI Unit Vector in Z (J2000) | -0.160290 |
Galactic Longitude | 241.95° |
Galactic Latitude
| 28.63°
|
Observational Data |
Observed Visual Magnitude (V) | 6.55 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.005 |
Observed B Magnitude | 6.58 |
Observed B-V Colour | +0.027 |
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 | 6.9 |
Observed Photographic Magnitude | 6.5 |
Morgan Keenan (MK) Spectral Type | A2V |
One-Dimensional Spectral Class | A0 |
Position Angle | 196 |
Year of Observation | 1989. AD |