home *** CD-ROM | disk | FTP | other *** search
/ TIME: Almanac 1993 / TIME Almanac 1993.iso / time / charts / space / celestia.6 < prev    next >
Encoding:
Text File  |  1992-09-25  |  1.3 KB  |  31 lines
  1.                                                                                 Comets:
  2.  
  3.  
  4. Predicted Perihelion Passages of Comets, 1993:
  5.  
  6.                                          Revolution    Perihelion
  7.                          Perihelion        period       distance
  8.    Periodic comet          date             years          au*
  9.  
  10. Ciffreo                   Feb.  12           7.3          3.76
  11. Howell                    Feb   27           5.6          3.15
  12. Schaumasse                Mar.   3           8.2          4.07
  13. Forbes                    Mar.  14           6.1          3.35
  14. Holmes                    Apr.  10           7.1          3.69
  15. Vaisala                   Apr.  29          10.8          4.88
  16. Slaughter-Burnham         June  22          11.6          5.12
  17. Ashbrook-Jackson          July  14           7.5          3.83
  18. Gehels 3                  July  25           8.1          4.04
  19. van Houten                Oct.   6          16.8          6.55
  20. Neujmin 3                 Nov.  13          10.6          4.83
  21. Shajn-Schaldach           Nov.  15           7.5          3.83
  22. West-Kohoutek-Ikemura     Dec.  25           6.4          3.45
  23.  
  24.  
  25. * [1 au = approximately 93 million miles, or the distance between
  26.   the Earth and the Sun.]
  27.  
  28. Source:The Nautical Almanac Office, U.S. Naval Observatory.
  29.  
  30. 
  31.