NGC 1817
Fundamental
Coordinates J2000
Coordinates B1950
Positions
Absolute p.m.
Photometry
UBV
uvby
uvby mean
Washington
UBV CCD
uvby CCD
ß CCD
UBV pg
Spectroscopy
HD types
Mean Vr
Radial Velocity
Orbital elements
Miscellanous
Frequencies
Membership