# Planets & Friends

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

Earth

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

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

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

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

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

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

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

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

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

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

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