1 / 12

Mars Basics

Mars Basics. Size & Distance. Smaller than Earth (0.532x) Mars diam ~ 6779 km (4212 miles) Earth diam ~ 12,742 km (7918 miles) 8 Mars would fit inside the Earth!. Size & Distance. Size & Distance. Smaller than Earth (0.532x) Mars diam ~ 6779 km (4212 miles)

tasmine
Download Presentation

Mars Basics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mars Basics

  2. Size & Distance • Smaller than Earth (0.532x) • Mars diam ~ 6779 km (4212 miles) • Earth diam ~ 12,742 km (7918 miles) • 8 Mars would fit inside the Earth!

  3. Size & Distance

  4. Size & Distance • Smaller than Earth (0.532x) • Mars diam ~ 6779 km (4212 miles) • Earth diam ~ 12,742 km (7918 miles) • 8 Mars would fit inside the Earth! • 1.5 AU from the sun (~140 million miles) • 0.5 AU from the Earth (~43 million miles) • SCALE!!!

  5. Scale • Using a 12-inch Earth globe and 6-inch Mars globe as a scale: • Q: How far away do you think Mars would be? • A: 1.4 km (~0.87 miles)

  6. LPI McDonald’s

  7. Rotation & Revolution • One Martian day (sol) is 24 hours and 37 minutes • One Martian year is 687 Earth days, almost two Earth years

  8. Seasons • Like Earth, Mars tilts • This tilt contributes to seasons, orbit also contributes

  9. Atmosphere • Yep. Mars has an atmosphere. • ~95% CO2, ~3% N2, ~2% Ar; traces of O2, CO • Surface pressure ~0.006 atm (~1/100th Earth’s atmosphere) • Gerard Kuiper made spectroscopic observations of CO2 in the atmosphere in 1952; presumed to be a minor constituent until 1965

  10. Interior • Core, mantle, crust • No magnetic field today; data support one in the past

  11. Mars is Cold • Average temp: -63° C (max & min vary) • Weirdness above the surface…

  12. Moons Deimos – 15 km (9.3 miles) Phobos – 26.8 km (16.7 miles)

More Related