Melotte 20

Fundamental

  • Coordinates J2000
  • Coordinates B1950
  • Positions
  • Absolute p.m.

    Photometry

  • UBV
  • uvby
  • uvby mean
  • ß data
  • Eggen uvby
  • Geneva 7-col
  • Geneva
  • Vilnius
  • WBVR
  • DDO data
  • VRIc data
  • VRIk data
  • VRIj data
  • JHK data
  • da
  • UBV CCD
  • VRIc CCD
  • VIk CCD
  • RIc CCD
  • 2MASS

    Spectroscopy

  • MK types
  • MK selected
  • HD types
  • Mean Vr
  • Radial Velocity
  • No JD Rad Vel
  • GPO Velocity
  • Vsini
  • Orbital elements

    Miscellanous

  • Lithium abundance
  • ROSAT
  • ROSAT sources
  • Periods
  • Membership