By B. G. Marsden (auth.), A. Milani, M. Di Martino, A. Cellino (eds.)
THE assembly The IAU Symposium one hundred sixty ASTEROIDS COMETS METEORS 1999 has been held at Villa Carlotta in Belgirate, at the shore of Lago Maggiore (Italy), from June 14 to June 18, 1993. it's been geared up by way of the Astronomical Observatory of Torino and by way of the Lunar and Planetary Institute of Houston. it's been a really huge assembly, with 323 registered members from 38 nations. The medical application incorporated 29 invited studies, 106 oral communications, and 215 posters. the topics coated incorporated the entire points of the stories of the minor our bodies of the sun process, together with asteroids, comets, meteors, meteorites, interplanetary dirt, with particular concentrate on the interrelationships among those. The assembly was once based as follows. five morning plenary classes were dedicated to invited studies on: (1) seek courses (2) populations of small our bodies (3) dynamics (4) actual observations and modelling (5) starting place and evolution. afternoon plenary periods were dedicated to house missions to small our bodies and to interrelationships among the several populations. The afternoon parallel classes were dedicated to: dynamics of comets; Toutatis, Ida, Gaspra; actual techniques in cometary comae and tails; meteorites; the cosmogonic message from cometary nuclei; physics of asteroids; the interplanetary dirt advanced; comet nuclei; meteors; composition and fabric homes of comets; dynamics of asteroids.
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Additional resources for Asteroids, Comets, Meteors 1993: Proceedings of the 160th Symposium of the International Astronomical Union, Held in Belgirate, Italy, June 14–18, 1993
The minimum value of E for the comets during this decade was 29~1 in the case of comet 1983 V. The morning-evening asymmetry is evident in Fig. 2, but only in the opposition region, where there are precisely twice as many on the morning side as on the evening. Given the concentration of professional programs near opposition and the 6 B. G. MARSDEN fact that, unless they are close to the earth, all comets are moving from morning to evening and are essentially equally bright at the same elongation before and after opposition, this bias is really not at all surprising.
1993). 5°/day at the time of discovery. 6 hours on 1991 January 18. ~ ". II! ::! euII! . " . ," . III II! II! 1-0 tIC II! 2 . 2 Fig. 1. A simulated rate plot of asteroids near opposition. Dots represent Main Belt asteroid rates, and (*) represent the rates of near Earth asteroids. ) are Trojan type asteroids and (0) are Centaur type asteroids. 3. Astrometry During the first pass of a survey region, MODP identifies the images of Hubble Space Telescope Guide Star Catalog Stars ("GSC" stars hereafter, see Russell, et al.
1993 DTI was approximately magnitude V=19. (5693) 1993 EA is an NEA discovered and specifically followed up by Spacewatch. (5693) 1993 EA was about magnitude V=19 at the time of discovery and faded past V=20 during the last measurements reported in this sample. 2 arcseconds. 6 arcseconds. 0 arcseconds. 5 ~ UII to :n9, J" •• , ... or Fig. 3. _1M ...... 715. -. eNt_ : , Lat ' .. t" • ... tn-aUa. ' • The MODP display dUrIng the automated streak detection of asteroid 1992 JD. 4. Survey results 4 1 NEAR EARTH ASTEROIDS Spacewatch discovered 1990 SS on 1990 September 25, makmg thIs the first fully automatic discovery of a NEA.