Identification Data |
Common Name | Nodus Secundus |
Constellation | Draco |
Star Name | 57del Dra |
Skymap Number | 19120124 |
Henry Draper (HD) Number | 180711 |
Harvard Revised (HR) Number | 7310 |
SAO Number | 18222 |
Durchmusterung (DM) Number | BD+67 1129 |
Washington Double Stars (WDS) Number
| 19126+6740
|
Positional Data |
Position and Proper Motion (PPM) Number | 21358 |
Right Ascension (RA) J2000 | 19h 12m 33.300s |
Declination (Dec) J2000 | +67° 39' 41.549" |
Position Uncertainty | 0.0057s |
Proper Motion in RA (J2000)/cos(Dec) | +0.01657 |
Proper Motion in Dec (J2000) | +0.092366 |
Radial Velocity | +024.8km s-1 |
Trigonometric Parallax | +0.03254s |
Trigonometric Parallax Uncertainty | 0.00046s |
GCI Unit Vector in X (J2000) | 0.118325 |
GCI Unit Vector in Y (J2000) | -0.361189 |
GCI Unit Vector in Z (J2000) | 0.924955 |
Galactic Longitude | 98.66° |
Galactic Latitude
| 23.00°
|
Observational Data |
Observed Visual Magnitude (V) | 3.08 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 4.08 |
Observed B-V Colour | +1.003 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 3.2 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | G9III |
One-Dimensional Spectral Class | K0 |
Position Angle | 352 |
Year of Observation | 1907. AD |