------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1731 2002 Jan 08 20.56UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK GMH at AST.STAR.RL.AC.UK WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- CHRISTMAS QUIZ We issued the usual Christmas quiz on E-Circular 1727. Brian Marsden, holidaying in California without immediate access to usual references, provided the first all-complete set of answers to be received by the editor. We offer our congratulations to Brian and commiserations to everyone else who entered although we were impressed by the many entries received. We are in touch with Brian for a decision on the prize. As feedback we repeat the questions below with the answers added. 1) Which name is given to asteroids at the L4 and L5 points in the orbit of Jupiter? Trojans 2) Which of the asteroids in question 1 has recently been discovered to be a double (name and number)? (617) Patroclus 3) Which meteor stream is believed to be linked to the asteroid (3200) Phaethon? Geminids 4) After the galactic supernova of 1604, the remnant of which similar object suggests it may have gone undetected soon afterwards? (Approx year and constellation)? Approx 1680; Cas A 5) What was the initial designation of the first asteroid found by Brian Manning following the 'challenge' by Rob McNaught? 1989 TE 6) Which solar astronomer wrote 'Rosa Ursina' dedicated to drawings and observations of the Sun? In which year did it appear? Christoph Scheiner; 1630 7) Which constellation has no stars brighter than magnitude 5.0? What was its original name? Mensa; Mons Mensae 8) What does 'D' stand for as the initial prefix of some comet designations? Which such periodic comet was inadvertently recovered by LINEAR on 2001 Dec 7? Defunct; Comet 11D (Temple-Swift) 9) Which observatory began operating a 1.8-m telescope in 1918? Dominion Astrophysical Observatory 10) What was the name of the author of a series of TA articles entitled 'Discovering the Nebulae'? Kenneth Glyn-Jones Guy M Hurst