1983 LB
1983 LB
1983 LB and 1983 LC
1983 LC
1983 LC
1983 LC
1983 LC
1983 March 11 (meeting)
1983 March 11 meeting of the Royal Astronomical Society
1983 March 9 meeting of the Royal Astronomical Society
1983 May 13 (meeting)
1983 May 13 meeting of the Royal Astronomical Society
1983 November 11 (meeting)
1983 November 11 meeting of the Royal Astronomical Society
1983 observations of the eclipsing nucleus of the bipolar planetary nebula NGC 2346
1983 October 14 (meeting)
1983 October 14 meeting of the Royal Astronomical Society
1983 RB
1983 RB
1983 RD