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... Moons revolve around planets, which revolve around stars, which revolve around the center of a galaxy, which is a typical unit of the universe. 2. Explain what is meant by this statement. "When you look at a star, it might not actually be there." Many stars are thousands of light years away. The lig ...
... Moons revolve around planets, which revolve around stars, which revolve around the center of a galaxy, which is a typical unit of the universe. 2. Explain what is meant by this statement. "When you look at a star, it might not actually be there." Many stars are thousands of light years away. The lig ...
AnwerkeyChaper1516
... Blue: Hotter and high in energy 10. Brightness decreases by the inverse square of distance away from the source. 12. Main sequence: Stable part of star life cycle; Diagonally across White dwarf: Cool/dim; lower left corner Red giant: cool/bright; upper left corner Super giant: can be blue or red; up ...
... Blue: Hotter and high in energy 10. Brightness decreases by the inverse square of distance away from the source. 12. Main sequence: Stable part of star life cycle; Diagonally across White dwarf: Cool/dim; lower left corner Red giant: cool/bright; upper left corner Super giant: can be blue or red; up ...
National Geographic “Space Quest” Notes
... Star - body of hot gases that gives off energy Telescope – device used to study distant objects. It takes the Earth 24 hours to make one rotation on its axis. The sun is the largest object in our solar system. The sun is not the brightest star in the sky. The hubble space telescope take pictures in ...
... Star - body of hot gases that gives off energy Telescope – device used to study distant objects. It takes the Earth 24 hours to make one rotation on its axis. The sun is the largest object in our solar system. The sun is not the brightest star in the sky. The hubble space telescope take pictures in ...
The Universe Constellations
... 13. What percent of stars belong to a multiple star system? 14. The constellation of Centaurus in the Southern Hemisphere contains Omega Centauri, the largest globular star cluster in the Milky Way Galaxy. Describe how globular clusters may have formed. ...
... 13. What percent of stars belong to a multiple star system? 14. The constellation of Centaurus in the Southern Hemisphere contains Omega Centauri, the largest globular star cluster in the Milky Way Galaxy. Describe how globular clusters may have formed. ...
Stars
... The sun is a star. With the exception of the sun, stars appear to be fixed, maintaining the same pattern in the skies year after year. However, stars are actually in rapid motion, but their distances are so great that their relative changes in position become apparent only over the centuries. The nu ...
... The sun is a star. With the exception of the sun, stars appear to be fixed, maintaining the same pattern in the skies year after year. However, stars are actually in rapid motion, but their distances are so great that their relative changes in position become apparent only over the centuries. The nu ...
Quiz # 5
... A protoplanetary disk, such as those observed around some stars in the Orion nebula. Any planet of greater mass than Jupiter. A planet orbiting a star beyond the Sun; for example, the planet orbiting the star 51 Pegasi. D) A primitive organism thought to exist on Jupiter's moon, Europa. ...
... A protoplanetary disk, such as those observed around some stars in the Orion nebula. Any planet of greater mass than Jupiter. A planet orbiting a star beyond the Sun; for example, the planet orbiting the star 51 Pegasi. D) A primitive organism thought to exist on Jupiter's moon, Europa. ...
Topic 4 Guided Notes
... bodies that independently orbit the sun. •Range from 100 to 1000km in diameter. Asteroid belt- most asteroids are in orbits between ...
... bodies that independently orbit the sun. •Range from 100 to 1000km in diameter. Asteroid belt- most asteroids are in orbits between ...
Earth - Capital High School
... • earth’s seasons are caused by the tilt (23.5º) of the earth on its axis • the pole tilted towards the sun is hotter and the days longer – more direct sunlight and ...
... • earth’s seasons are caused by the tilt (23.5º) of the earth on its axis • the pole tilted towards the sun is hotter and the days longer – more direct sunlight and ...
The distance that light travels in a year is 9.5 trillion km. The
... Put the following in order from closest to the Earth to farthest away: Sun, Andromeda Galaxy, Constellation, Neptune ...
... Put the following in order from closest to the Earth to farthest away: Sun, Andromeda Galaxy, Constellation, Neptune ...
Homework 7
... Due Friday, November 22, 2013 at 5 p.m., either electronically or on paper. 1. How does solar nebula theory explain the dramatic density difference between the terrestrial and Jovian planets? ...
... Due Friday, November 22, 2013 at 5 p.m., either electronically or on paper. 1. How does solar nebula theory explain the dramatic density difference between the terrestrial and Jovian planets? ...
Astronomy Powerpoint
... Life Cycle of a star • Begins as a cloud of gas • Core reaches 1 million C, energy is given off • When most of the hydrogen is used up, becomes a red giant • Depending on size, becomes a white dwarf or a supernova ...
... Life Cycle of a star • Begins as a cloud of gas • Core reaches 1 million C, energy is given off • When most of the hydrogen is used up, becomes a red giant • Depending on size, becomes a white dwarf or a supernova ...
IK Pegasi
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.