5088 Tancredi: Rotation Period and Phase Coefficients
509 Iolanda CCD Spectrum
5091 Isakovskij CCD Spectrum
50K expander cycle engine demonstration
50th anniversary of Dundee Astronomical Society
50TH Year of Publication
51 Eri and GJ 3305: A 10-15 Myr old binary star system at 30 parsecs
51 NEMAUSA
51 Nemausa CCD Spectrum
51 neue Veräderliche
51 Ophiuchi (B9.5 Ve) - A Be star in the class of Beta Pictoris stars?
51 Ophiuchus: A Possible Beta Pictoris Analog Measured with the Keck Interferometer Nuller
51 Peg: a star with a second planet or a pulsating star?
51 Pegasi
51 Pegasi
51 Pegasi
51 Pegasi
51 Pegasi - a planet-bearing Maunder minimum candidate
51 Pegasi X?
51 Tauri and the Hyades Distance Modulus