12 new substellar members in Taurus. Clues for substellar formation models
12-95 Angstrom Spectrum of a Solar Flare
12-μm fine-structure emission line and continuum images of G333.6-0.2
12.2-GHZ Methanol and 1.6-GHZ Hydroxyl Masers Associated with New 6.7-GHZ Methanol Masers
12.5 Microns Imaging Polarimetry of Eta Carinae
12.6-cm Radar Properties of Europa, Ganymede, and Callisto.
120-pixel array of superconducting tunnel junctions as spectrophotometer for optical astronomy
121 neue südliche Veränderliche
1213+350 -- The Smallest Gravitational Lens or a New Class of Radio-Loud Active Galaxy?
1220 Crocus: A Processing, Binary Asteroid??
1222+216 - A wide-angle-tailed quasar?
1240-057 - Giant jet or colliding galaxies?
125-170 GHz SIS-receiver with closed cycle refrigeration system
12B(n,γ)-the influence on r-process nucleosynthesis of light elements
12C and 13C Abundances in Late Type Oxygen-Rich Giants.
12C/13C in Metal-poor Field Halo Giants
12C/13C ratios and Li abundances in C stars: evidence for deep mixing?
12C/13C Ratios and Li Abundances in Low-Mass C Stars
12C160 , 18C160 And 12C180 Isotope Ratios from Microwave Observations of CO in the Mesosphere (80-100 km) of Venus
12C32S, 12C34S, 13C32S, and 12C33S, in the Interstellar Medium.