1999 LW1
1999 LX1
1999 LY5
1999 March 12 meeting of the Royal Astronomical Society
1999 Marsokhod Field Experiment: A Simulation of a Mars Rover Science Mission
1999 May 14 meeting of the Royal Astronomical Society
1999 meteor shower calendar.
1999 ML
1999 MM
1999 MM
1999 MN
1999 MN
1999 NA5
1999 NA5
1999 NB5
1999 NB5
1999 NC43
1999 NC5
1999 NC5
1999 ND43