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Planetary Science

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Sim Muller

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Cards in this guide (12)
Neptune moon Triton is bigger than Pluto

Triton is larger than Pluto. Pluto's equatorial diameter is 2,274 km.

Neptune's moon Triton's equatorial diameter is 2,700 km.

Which features on mars point to the possibility of liquid water on the planet

Gullies and streamlike channels

In polar areas solar radiation strikes Earth at a

In polar areas, solar radiation strikes Earth at a small angle. The dissipation of light in the Earth's atmosphere is increased when it falls at a shallow angle.

About 60 percent of all known galaxies are classified as

About 60% of galaxies are classified as elliptical planets.

Steller distances are usually expressed in what units

Astronomical Units, parsecs, light years, take your pick.

Planets whose orbits lie closer to the sun than the asteroids

The asteroid belt is located between Mars and Jupiter. The planets closer to the Sun than the asteroid belt are Mercury, Venus, Earth and Mars.

What are the names of these planets in order from the mars outward

The planets in our solar system, in order, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

The planets in our solar system, in order, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

The planets in our solar system, in order, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

The planets in our solar system, in order, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

How long was Pluto considered one of the major planets

From its discovery in 1930 until its degradation in 2006 Pluto was considered the solar system's ninth planet. Now it is considered a dwarf planet, and one of 5 official dwarf planets.

The most widely accepted model for the origin of the moon involves

The formation of the moon from dust and gas when earth formed<nope!

Who invented the H-R diagram

Ejnar Hertzsprung and Henry Russell H for Hertzsprung and R for Russell

Do medium size stars become black holes

No. They do not have enough mass to become black holes. Depending on the mass they will either become white dwarfs or neutron stars.

Who discovered all four rings in Neptune

neptune's rings were discovered by Voyager 2 spacecraft in 1989

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