home *** CD-ROM | disk | FTP | other *** search
/ Amiga Collections: Topik / Topik - Disk 39 - Educational (19xx)(Topik Public Domain)(PD)[WB].zip / Topik - Disk 39 - Educational (19xx)(Topik Public Domain)(PD)[WB].adf / FASTFACTS / SOLAR-SYSTEM / MARS < prev    next >
Text File  |  1991-03-09  |  1KB  |  32 lines
  1. MARS
  2. DISTANCE FROM THE SUN:
  3.                 MEAN                141,500,000 mi.   (227,720,000 km.)
  4. SHORTEST                            128,000,000 mi.   (206,000,000 km.)
  5. GREATEST                            155,000,000 mi.   (249,400,000 km.)
  6. CLOSEST APPROACH TO EARTH           35,000,000 mi.    (56,300,000 km.)
  7.  
  8. LENGTH OF YEAR (EARTH-DAYS)         687
  9. AVERAGE ORBITAL SPEED               15 mi. per sec.  (24 km. per sec.)
  10. DIAMETER AT EQUATOR                 4,200 mi.        (6,760 km.)
  11. ROATION PERIOD                      24 hrs. 37 min.
  12. TILT OF AXIS (DEGREE)               25
  13. AVERAGE TEMPERATURE                 -80°F.            (-62° C.)
  14. ATMOSPHERE:
  15. PRESSURE                            0.15 lbs. per sq. in.
  16.                                     (0.01 kg per cm2)
  17.  
  18. GASES                               CARBON DIOXIDE, NITROGEN, ARGON, OXYGEN,
  19.                                     WATER VAPOR
  20. MASS (EARTH=1)                      0.11
  21. DENSITY (WATER=1)                   4.0
  22. GRAVITY (EARTH=1)                   0.38
  23. NUMBER OF SATELLITES                2
  24.  
  25. MAR'S SATELLITES
  26.  
  27.                MEAN      SIDEREAL    VISUAL
  28.    NAME      DISTANCE     PERIOD    MAGNITUDE   RADIUS    DISCOVERY
  29.              10³ mi.  days hr min               (miles)
  30. PHOBOS            5.8      08 02    11.5            5     Hall    1877
  31. DEIMOS           14.6    1 06 06    12.5            2.5   Hall    1877
  32.