A 2004 Geminid meteor spectrum in the visible-ultraviolet region. Extreme Na depletion?
A 200km/s molecular wind in the peculiar carbon star V Hya.
A 20cm VLA Survey of Abell Clusters of Galaxies VI. Radio/Optical Luminosity Functions
A 21 CM hydrogen line survey of the Small Magellanic Cloud
A 21 CM longitude-velocity diagram for the galactic equator, ell = 236° - 340°
A 21 CM study of some QSO/galaxy pairs
A 21-CENTIMETER Study of the Spiral Galaxy Messier 33
A 21-cm line study of NGC 5963, an SC galaxy with a low-surface brightness disk
A 21-cm study of the Seyfert galaxy NGC 4151
A 21-CM Survey around the Pleiades.
A 21-hour period in the quiescent radio emission of Cygnus X-3
A 217.5 nanometer absorption feature in the spectrum of small silicate particles
A 22 Degree Tidal Tail for Palomar 5
A 22-year dependence in the size of near-ecliptic corotating cosmic ray depressions during five solar minima
A 22-year Southern Sky Survey for Transient and Variable Radio Sources using the Molonglo Observatory Synthesis Telescope
A 22GHz Line Radiometer for the Usuda Tracking Station
A 22GHz search for molecular absorption at z~3 with the upgraded ATCA
A 23 GHz Survey of GRB Error Boxes
A 23 H EXOSAT observation of the X-ray pulsar 1E2259+586 and the associated supernova remnant G109.1-1.0
A 230 GHz heterodyne receiver array for the IRAM 30 m telescope