Astronomy
Constellations - Gemini - 7eta Gem (Propus)

 
Identification Data
Common NamePropus
ConstellationGemini
Star Name7eta Gem
Skymap Number6140209
Henry Draper (HD) Number42995
Harvard Revised (HR) Number2216
SAO Number78135
Durchmusterung (DM) NumberBD+22 1241
Washington Double Stars (WDS) Number
06149+2230
Positional Data
Position and Proper Motion (PPM) Number95649
Right Ascension (RA) J20006h 14m 52.657s
Declination (Dec) J2000+22° 30' 24.476"
Position Uncertainty0.0257s
Proper Motion in RA (J2000)/cos(Dec)-0.00451
Proper Motion in Dec (J2000)-0.010267
Radial Velocity+019.0km s-1
Trigonometric Parallax+0.00934s
Trigonometric Parallax Uncertainty0.00199s
GCI Unit Vector in X (J2000)-0.059929
GCI Unit Vector in Y (J2000)0.921888
GCI Unit Vector in Z (J2000)0.382793
Galactic Longitude188.86°
Galactic Latitude
2.52°
Observational Data
Observed Visual Magnitude (V)3.30
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.008
Observed B Magnitude4.86
Observed B-V Colour+1.560
Observed B Magnitude or (B-V) Magnitude Uncertainty0.012
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude
Observed Photographic Magnitude4.5
Morgan Keenan (MK) Spectral TypeM2.5III
One-Dimensional Spectral ClassM0
Position Angle258
Year of Observation1990. 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 13:15:41 GMT+01:00 2001