Astronomy
Constellations - Serpens - 61 Ser

 
Identification Data
Common Name
ConstellationSerpens
Star Name61 Ser
Skymap Number18310220
Henry Draper (HD) Number170920
Harvard Revised (HR) Number6957
SAO Number142372
Durchmusterung (DM) NumberBD-01 3504
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number180356
Right Ascension (RA) J200018h 31m 56.994s
Declination (Dec) J2000-1° 0' 10.719"
Position Uncertainty0.0098s
Proper Motion in RA (J2000)/cos(Dec)+0.00067
Proper Motion in Dec (J2000)-0.004666
Radial Velocity-027.3km s-1
Trigonometric Parallax+0.00572s
Trigonometric Parallax Uncertainty0.00082s
GCI Unit Vector in X (J2000)0.138935
GCI Unit Vector in Y (J2000)-0.990147
GCI Unit Vector in Z (J2000)-0.017504
Galactic Longitude29.82°
Galactic Latitude
3.88°
Observational Data
Observed Visual Magnitude (V)5.95
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.005
Observed B Magnitude6.11
Observed B-V Colour+0.156
Observed B Magnitude or (B-V) Magnitude Uncertainty0.006
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.8
Observed Photographic Magnitude6.6
Morgan Keenan (MK) Spectral TypeA4III
One-Dimensional Spectral ClassA2
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 13:15:49 GMT+01:00 2001