Planets & Friends

Surface Area, Ms. Finney, December 2013
Ruby and Rae

Earth

Radius: 6,371 km

Math:

4π(6,371)2

4π(40589641)

4(127516118)

510,064,471.9(km)

Surface Area = 316,939,369 Miles Squared

Location: Under our feet. Third planet from the Sun

Facts:

  • Earth is moving around the Sun 67,000 m.p.h.
  • Earth is about 4.54 billion years old
  • coldest place on Earth = Antarctica, -100˚F
  • Earth used to be purple
  • only 5% of the ocean has been explored by humans

Mars

Radius: 3,390 km

Math:

4π(3,390)2

4π(11492100)

4(36103497)

144,413,987.7(km)

Surface Area = 897,342,692 Miles Squared

Location: Fourth planet from the Sun

Facts:

  • the month March is named after Mars
  • 100 lb. on Earth = 38 lb. on Mars
  • temperatures as low as -191˚F
  • Mars is red because it is rusty

Venus

Radius: 6,052 km

Math:

4π(6,052)2

4π(36626704)

4(115066184.2)

460,264,736(km)

Surface Area = 285,995,248 Miles Squared

Location: Second planet from the Sun

Facts:

  • day on Earth is 24 hours - day on Venus is 5,832 hours (243 days)
  • Venus has no moons
  • Venus is the hottest planet in our Solar System
  • Venus has no liquid water

Uranus

Radius: 25,362 km

Math:

4π(25,362)2

4π(643231044)

4(2020769922)

8,083,079,690(km)

Surface Area = 5,022,592,864 Squared Miles

Location: Seventh planet from the Sun

Facts:

  • first discovered planet (besides Earth)
  • some nights on Uranus can last for more than 40 years
  • Uranus has only been explored once

Neptune

Radius: 24,622 km

Math:

4π(24,622)2

4π(606242884)

4(1903602656)

7,614,410,623(km)

Surface Area = 4,731,375,407 Squared Miles

Location: Eighth planet from the Sun

Facts:

  • farthest planet from the sun
  • took Voyager II 12 years to reach it
  • 19 moons
  • Earth has 365 days in 1 year - Neptune has 60,225 days in 1 year

Jupiter

Radius: 69,911 km

Math:

4π(69,911)2

4π(4887547921)

4(15346900472)

61,387,601,888(km)

Surface Area: 38,144,487,374 Squared Miles

Location: Fifth planet from the Sun

Facts:

  • 100 pounds on Earth = 246 pounds on Jupiter
  • great red spot = storm that has been going on for +300 years
  • largest planet in the Solar System
  • 67 moons


Saturn

Radius: 58,232 km

Math:

4π(58,232)2

4π(3390965824)

4(10647632687)

42,590,530,748(km)

Surface Area = 26,464,528,869 Squared Miles

Location: Sixth planet from the Sun

Facts:

  • 62 moons
  • thousands of rings orbit Saturn
  • lightest planet, it would float if you put it in a tub of water
  • second largest, behind Jupiter

Mercury

Radius: 2,440 km

Math:

4π(2,440)2

4π(5953600)

4(18694304)

74,777,216(km)

Surface Area = 46,464,408 Squared Miles

Location: Closest planet to the Sun

Facts:

  • 88 days is a year in Mercury
  • Mercury has no atmosphere at all
  • named after the Roman Messanger

Pluto

Radius: 2,322 km

Math:

4π(2,322)2

4π(5391684)

4(16929888)

67,719,552(km)

Surface Area = 42,078,979

Location: Nineth "planet" from the sun

Facts:

  • not a planet
  • Pluto is a dwarf-planet
  • only known dwarf planet with an atmosphere
  • 5 moons
  • 100 lb. on Earth = 6.7 lb. on Pluto

Moon

Radius: 1,737.4 km

Math:

4π(1,737.4)2

4π(3018558)

4(9483082)

379,32,328.1(km)

Surface Area = 23,570,056 Squared Miles

Location: somewhere in the Milky Way galaxy

Facts:

  • created when Earth slammed into large rock
  • wave tides on Earth are caused by the moon because of the Moon's gravitational pull on the ocean
  • the moon moves away from the Earth every year

Sun

Radius: 695,500 km

Math:

4π(695,500)2

4π(4.811)

4(1.512)

≈ 2,176,782,336(km)

Surface Area = 1,352,589,835 Squared Miles

Location: somewhere in the Milky Way galaxy

Facts:

  • 1 million Earths could fit in 1 sun
  • temperature high - 27,0000,32˚F
  • 150 lb. on Earth = 4,200 lb. on the Sun

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