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The Solar System Funding support for outreach programs provided by the Utah State Legislature and the Utah State Board of Education Commonly Confused Terms Solar System Our star (Sun) and everything that orbits around it (planets, asteroids, comets, etc.) Galaxy

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the solar system

The Solar System

Funding support for outreach programs provided by the Utah State Legislature and the Utah State Board of Education

commonly confused terms
Commonly Confused Terms
  • Solar System
    • Our star (Sun) and everything that orbits around it (planets, asteroids, comets, etc.)
  • Galaxy
    • Huge collection of stars bound together by gravity (the Sun is 1 star among 100-400 billion stars in the Milky Way galaxy)
  • Universe
    • Everything (~100 billion galaxies)
what objects make up the solar system
What objects make up theSolar System?

The following tour shows objects in the solar system ordered by mass.

slide4
Sun

Has about

99.86% of the

MASS

in the

solar system

Courtesy of SOHO/EIT consortium. SOHO is a project of international cooperation between ESA and NASA.

sunspots
Sunspots

Credit: Royal Swedish Academy of Sciences

jupiter
Jupiter

has about

0.1% of the

MASS

in the

solar system

Everything else

together has

only about 0.04%

of the MASS

in the solar system

NASA/JPL/Space Science Institute

jupiter7
Jupiter

Composition:

86% Hydrogen

13% Helium

Jupiter has many objects in orbit around it

(current count = 63)

NASA/JPL/Space Science Institute

jupiter8
Jupiter

Most satellites orbit far away from Jupiter and are probably captured asteroids

Credit: University of Hawaii, Institute for Astronomy

saturn
Saturn

Composition:

90% Hydrogen

9% Helium

Credit: NASA, ESA and E. Karkoschka (Univesity of Arizona)

neptune
Neptune

Neptune has 8 known moons

Largest moon Triton is in a retrograde orbit

Courtesy: NASA/JPL-Caltech

uranus
Uranus

Composition:

83% Hydrogen

15% Helium

Uranus has an axial tilt of 98˚

Courtesy: NASA/JPL-Caltech

earth
Earth

Temperature and pressure allow water to exist as a liquid at the surface

Courtesy: NASA/JPL-Caltech

venus
Venus

Venus has 82% of the mass of Earth and is covered with white clouds of sulfuric acid

Courtesy: NASA/JPL-Caltech

venus14
Venus

Surface Temperature: 864˚ F

Credit: NASA/NSSDC

slide16
Mars

Courtesy: NASA/JPL-Caltech

mercury
Mercury

Although it is smaller in size than Ganymede and Titan, Mercury has more mass of both of these moons combined.

Credit: NASA/Johns Hopkins University Applied Physics Laboratory/

Carnegie Institution of Washington

moons seven moons have more mass than pluto
MoonsSeven moons have more mass than Pluto

Ganymede (Jupiter)

Titan (Saturn)

Callisto (Jupiter)

Io (Jupiter)

Moon (Earth)

Europa (Jupiter)

Triton (Neptune)

Courtesy: NASA/JPL-Caltech

slide19

Eris is the largest dwarf planet in the Solar System. Eris has 1.27 times the mass of Pluto.

Eris

Credit: NASA ,ESA , and M. Brown (California Institute of Technology)

pluto

Pluto, the second largest dwarf planet, is one of the largest objects in a belt of objects that orbit the Sun beyond Neptune.

Pluto

Credit: Allen Stern (Southwest Research Institute), Mark Buie (Lowell Observatory), NASA and ESA

the kuiper belt
The Kuiper Belt

Thousands of icy objects orbit the Sun beyond Neptune in a region commonly called the Kuiper Belt.

______

Pluto Orbit

________

Neptune Orbit

Credit: NASA/Johns Hopkins University Applied Physics Laboratory

slide22

Dysnomia

Eris

Makemake

Haumea

Credit: NASA, ESA, and A. Field (STScI)

comets
Comets

NASA/NSSDC/W. Liller

Astronomers think that many comets originate in the Kuiper Belt

Courtesy: NASA/JPL-Caltech

asteroids
Asteroids

Eros

Courtesy: NASA/JPL-Caltech