Identification Data |
Common Name | |
Constellation | Perseus |
Star Name | 17 Per |
Skymap Number | 2510071 |
Henry Draper (HD) Number | 17709 |
Harvard Revised (HR) Number | 843 |
SAO Number | 55946 |
Durchmusterung (DM) Number | BD+34 527 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 67840 |
Right Ascension (RA) J2000 | 2h 51m 30.837s |
Declination (Dec) J2000 | +35° 3' 35.068" |
Position Uncertainty | 0.0099s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00076 |
Proper Motion in Dec (J2000) | -0.063066 |
Radial Velocity | +014.3km s-1 |
Trigonometric Parallax | +0.00797s |
Trigonometric Parallax Uncertainty | 0.00110s |
GCI Unit Vector in X (J2000) | 0.599835 |
GCI Unit Vector in Y (J2000) | 0.556981 |
GCI Unit Vector in Z (J2000) | 0.574430 |
Galactic Longitude | 149.08° |
Galactic Latitude
| -21.64°
|
Observational Data |
Observed Visual Magnitude (V) | 4.55 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.005 |
Observed B Magnitude | 6.11 |
Observed B-V Colour | +1.562 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.007 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.7 |
Observed Photographic Magnitude | 5.8 |
Morgan Keenan (MK) Spectral Type | K5.5III |
One-Dimensional Spectral Class | K5 |
Position Angle | |
Year of Observation | AD |