Astronomy
Constellations - Lynx - 21 Lyn

 
Identification Data
Common Name
ConstellationLynx
Star Name21 Lyn
Skymap Number7260172
Henry Draper (HD) Number58142
Harvard Revised (HR) Number2818
SAO Number41764
Durchmusterung (DM) NumberBD+49 1623
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number49857
Right Ascension (RA) J20007h 26m 42.851s
Declination (Dec) J2000+49° 12' 41.497"
Position Uncertainty0.0095s
Proper Motion in RA (J2000)/cos(Dec)-0.00110
Proper Motion in Dec (J2000)-0.048666
Radial Velocity+026.5km s-1
Trigonometric Parallax+0.01311s
Trigonometric Parallax Uncertainty0.00079s
GCI Unit Vector in X (J2000)-0.241317
GCI Unit Vector in Y (J2000)0.607063
GCI Unit Vector in Z (J2000)0.757126
Galactic Longitude168.72°
Galactic Latitude
25.75°
Observational Data
Observed Visual Magnitude (V)4.62
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.62
Observed B-V Colour-0.005
Observed B Magnitude or (B-V) Magnitude Uncertainty0.002
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.5
Observed Photographic Magnitude4.4
Morgan Keenan (MK) Spectral TypeA1V
One-Dimensional Spectral ClassA0
Position Angle
Year of Observation AD

Data Source
SKY2000 - Master Star Catalog - Star Catalog Database, Version 2
    Sande C.B., Warren Jr. W.H., Tracewell D.A., Home A.T., Miller A.C.
    (Goddard Space Flight Center, Flight Dynamics Division (1998))

 
Page compiled: Sun Sep 02 13:15:44 GMT+01:00 2001