17th Century Theodolite Finds Permanent Home in Cape Town
17th ESA Symposium on European Rocket and Balloon Programmes and Related Research
17TH IAU General-Assembly - Montreal
17th National Australian Convention of Amateur Astronomers, held in Brisbane, 5 - 8 April 1996.
17μm molecular hydrogen line emission from OMC-1.
18 centimeter VLBI observations of the quasar NRAO 140 during and after a low-frequency outburst
18 cm VLBI Observations of the Quasar NRAO 140 During and After a Low-Frequency Outburst
18 GHz SZ Measurements of the Bullet Cluster
18 new objects with broad emission lines from the VIIIth and IXth list of Markarian galaxies.
18 years of science with the Hubble Space Telescope
18-cm observations of an outburst in V711 Tau
18-cm OH Absorption of W 49 A and W 48 B
18-cm Transitions in O17H and O18H-Laboratory and Astronomical Measurements
18-cm VLA observations of OH towards the Galactic Centre. Absorption and emission in the four ground-state OH lines
18-CM Wavelength Radio Monitoring of the OH Radical in Comet p/ Halley 1982I
18-MEGACYCLE Observations of Jupiter in 1957.
18.1919 Orionis
18.1929 Sagittarii = BD - 20°5253
180. Meeting of the American Astronomical Society, Columbus, OH (USA), 7 - 11 Jun 1992. Late-paper abstracts.
1803 + 784 - A BL Lacertae object with remarkable radio properties