216 Kleopatra: Visual Lightcurves of a Large Amplitude Asteroid

2161 Grissom CCD Spectrum

2167 Erin CCD Spectrum

2169 Taiwan Average CCD Spectrum

216kleopatra

217eudora

2185 Guangdong CCD Spectrum

2189 Zaragoza CCD Spectrum

2194 Arpola CCD Spectrum

21cm obs. of galaxies in Psc-Per Supercl. (Seeberger+ 1994)

21cm radio continuum survey. II. (Reich+ 1997)

21lutetia

21st century telescope

21st European Cosmic Ray Symposium

21st-Century Robotic Astronomy

22 étoiles doubles de la zone équatoriale d'après le catalogue photographique de Zô-Sé

22 GHz observations of southern H2O sources

22 GHz radiometer for VLBI station "Simeiz"

22 Jahre Beobachtung an Z Ursae Majoris.

22 Kalliope CCD Spectrum