home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Almathera Ten Pack 3: CDPD 3
/
Almathera Ten on Ten - Disc 3: CDPD3.iso
/
scope
/
126-150
/
scopedisk146
/
fastfacts
/
solar-system
/
mars
< prev
next >
Wrap
Text File
|
1995-03-19
|
1KB
|
32 lines
MARS
DISTANCE FROM THE SUN:
MEAN 141,500,000 mi. (227,720,000 km.)
SHORTEST 128,000,000 mi. (206,000,000 km.)
GREATEST 155,000,000 mi. (249,400,000 km.)
CLOSEST APPROACH TO EARTH 35,000,000 mi. (56,300,000 km.)
LENGTH OF YEAR (EARTH-DAYS) 687
AVERAGE ORBITAL SPEED 15 mi. per sec. (24 km. per sec.)
DIAMETER AT EQUATOR 4,200 mi. (6,760 km.)
ROATION PERIOD 24 hrs. 37 min.
TILT OF AXIS (DEGREE) 25
AVERAGE TEMPERATURE -80°F. (-62° C.)
ATMOSPHERE:
PRESSURE 0.15 lbs. per sq. in.
(0.01 kg per cm2)
GASES CARBON DIOXIDE, NITROGEN, ARGON, OXYGEN,
WATER VAPOR
MASS (EARTH=1) 0.11
DENSITY (WATER=1) 4.0
GRAVITY (EARTH=1) 0.38
NUMBER OF SATELLITES 2
MAR'S SATELLITES
MEAN SIDEREAL VISUAL
NAME DISTANCE PERIOD MAGNITUDE RADIUS DISCOVERY
10³ mi. days hr min (miles)
PHOBOS 5.8 08 02 11.5 5 Hall 1877
DEIMOS 14.6 1 06 06 12.5 2.5 Hall 1877