AST101H1 Lecture Notes - Lecture 15: Gnu Compiler Collection, Percival Lowell, Aerobraking
31 May 2016
School
Department
Course
Professor
23
AST101H1 Full Course Notes
Verified Note
23 documents
Document Summary
Actually dust covering dark areas seasonal dust storms two asteroidal moons - phobos and deimos similarities to earth and changing surface led to speculation of life on mars. Earth radius = 6370 km density=5. 5 g/cc mass = 1 earth mass gravity=1 g temperature=300 k radius = 3400 km density = 3. 9 g/cc mass = 0. 11 earth masses gravity=0. 37 g temperature=250 k. Mars m o c s s a l c e n o t a s e c r u o s e r e r o m d n i f. Mariner 4, 6, 7 ybys - rst close up views - 1960"s no canals! southern hemisphere - heavily cratered highlands like the moon. Mariner 9 orbiter arrived during a dust storm! mapped the surface in detail after the dust settled. Russian missions lots of bad luck - no great success.
