NGC 6939
Data types
Fundamental
Coordinates J2000
Coordinates B1950
Positions
XY positions
Photometry
UBV
Washington
JHK data
UBV CCD
VRIc CCD
VIc CCD
UBV pg
Spectroscopy
MK types
Mean Vr
Radial Velocity
Miscellanous
Periods
Membership
Lynga info
Alter bibliography
Notes