Astr 205 Study guides, Class notes & Summaries

What makes up 99.8% of the solar system's mass? The sun Mercury, Venus, Earth and Mars are called what type of planets? Terrestrial Terrestrial planets are ________ in size and ______ in mass and have a _______ density of 3.9-5.5 g/cm3 Small; Low; High What terrestrial planet is the densest of them all. Earth Jupiter, Saturn, Uranus and Neptune are called what types of planets? Jovian Jovian planets are ______ is size, ______ in mass and have a _______ density of about 0.7-1.6 g/cm...

ASTR 205 or Astronomy 205 Assignment 1- Observational Study Athabasca University 2024 full document

ASTR 205 or Astronomy 205 Assignment 2 Critical Review of Interstellar Athabasca University 2024

ASTR 205 (Astronomy 205) Short-answer Quiz 3 Athabasca University 2024 actual solution

Both Jupiter and Saturn 1. All of these 2. emit more energy than they absorb from the sun. 3. have belt and zone circulation. 4. have rings. 5. have liquid metallic hydrogen in their interiors. - 1. All of these Belt and zone circulation 1. has been observed only on Jupiter. 2. is caused by rising and sinking gases. 3. explains the formation of Cassini's division. 4. is more obvious on Saturn than on Jupiter. 5. is caused by the planet's magnetic field. - 2. is caused by rising a...

Scientific notation is used in science because - it makes it easy to write big or small numbers. The average distance from Earth to the sun is - 1 AU The sun is - a star 1 AU from Earth. more than 100 times the diameter of Earth. A galaxy contains - gas, dust, and stars, and a lot of dark matter. The Milky Way Galaxy - contains about 100 billion stars. 2.9×107 is the same as - . 29 million It takes light 1.3 seconds to travel from the moon to Earth and 8 minutes to travel from the s...

ASTR 205 Short-answer Quiz 2 Athabasca University 2024 complete material

ASTR 205 (Astronomy 205) Short-answer Quiz 4 Athabasca University 2024

ASTR 205 Short-answer Quiz 1 Athabasca University fall 2024