Openstax Astronomy

What are the two biggest asteroids?

• Pallas and Eros

• Ceres and vesta

• Mars

Tags

NGSS.MS-ESS1-3

Oort Cloud

• Theoretical location of many comets; Outer boundary of the solar system

• A region of the solar system that is just beyond the orbit of Neptune and that contains small bodies made mostly of ice

• the region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found

• Really far from sun; Mostly hydrogen and helium; All probably have solid cores; all have ring system

solar flare

• a part of coronal gas that is thrown into space from the sun

• A loop of gas that protrudes from the sun's surface, linking parts of sunspot regions

• A sudden flash of increased brightness on the Sun, usually observed near its surface and in close proximity to a sunspot group.

• the location on the H-R diagram where most stars lie

Tags

NGSS.MS-ESS3-2

Main sequence

• the location on the H-R diagram where most stars lie

• The actual brightness of a star

• Are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas.

• a part of coronal gas that is thrown into space from the sun

prominence

• A sudden flash of increased brightness on the Sun, usually observed near its surface and in close proximity to a sunspot group

• A loop of gas that protrudes from the sun's surface, linking parts of sunspot regions

• a part of coronal gas that is thrown into space from the sun

• Are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas

HR Diagram

• the location on the H-R diagram where most stars lie

• A graph relating the temperature and brightness of stars

• Are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas.

• A sudden flash of increased brightness on the Sun, usually observed near its surface and in close proximity to a sunspot group.

Luminosity

• The actual brightness of a star

• Are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas

• Actual darkness of a star

Cosmology

• Study of NASA

• An enormously bright, distant galaxy with a giant black hole at its center

• the study of the universe, its origins, and its development

• dense objects with gravity so strong that not even light can escape their surface

Tags

NGSS.HS-ESS1-2

Black Holes

• dense objects with gravity so strong that not even light can escape their surface

• Matter that does not give off electromagnetic radiation but is quite abundant in the universe

• a mysterious force that appears to be causing the expansion of the universe to accelerate

• The initial explosion that resulted in the formation and expansion of the universe

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The graph shows the observed water levels, in feet (ft), for a tide gauge located at Montauk, New York, on the easternmost end of Long Island, from January 24, 2008 to noon on January 25, 2008. What causes the water-level variation pattern shown by the graph?

• Earth's rotation and the gravitational pull of the Moon

• changes in wind velocity produced by coastal storms

• changes in magnetic orientation of the North American Plate

• Earth's revolution and the distance from the equator

Tags

NGSS.MS-ESS1-1

NGSS.MS-PS2-4