Our Solar System
... Earth. Venus looks like a bright star. Venus is very hot because its thick atmosphere traps heat from the sun. Venus has a core, mantel, crust. The core is made of iron and nickel. One year on Venus is 225 days on Earth. ...
... Earth. Venus looks like a bright star. Venus is very hot because its thick atmosphere traps heat from the sun. Venus has a core, mantel, crust. The core is made of iron and nickel. One year on Venus is 225 days on Earth. ...
File
... As a star’s magnitude increases from +1 to +6, its apparent brightness in the sky a. remains the same. b. increases c. decreases d. can either increase or decrease e. none of the above. ...
... As a star’s magnitude increases from +1 to +6, its apparent brightness in the sky a. remains the same. b. increases c. decreases d. can either increase or decrease e. none of the above. ...
1 Correct responses in BOLDFACE. 1. Henrietta Leavitt`s period
... 1. Henrietta Leavitt's period luminosity relation for RR Lyrae stars proved important because: ...
... 1. Henrietta Leavitt's period luminosity relation for RR Lyrae stars proved important because: ...
©M. Rieke 1 Correct responses in BOLDFACE. 1. Why did
... 31. Henrietta Leavitt's period luminosity relation for RR Lyrae stars proved important because: ...
... 31. Henrietta Leavitt's period luminosity relation for RR Lyrae stars proved important because: ...
Homework Assignment 1 — Solutions
... At the summer solstice, α = 6h 0m (a quarter revolution around from the vernal equinox) and δ = +23◦ 300 (northern hemisphere, equal to the Earth’s axial tilt). At the autumnal equinox, α = 12h 0m (a half revolution around from the vernal equinox) and δ = 0◦ 00 (on the celestial equator) At the ...
... At the summer solstice, α = 6h 0m (a quarter revolution around from the vernal equinox) and δ = +23◦ 300 (northern hemisphere, equal to the Earth’s axial tilt). At the autumnal equinox, α = 12h 0m (a half revolution around from the vernal equinox) and δ = 0◦ 00 (on the celestial equator) At the ...
Class notes
... orbiting the Sun. Comets: A relatively small, sometimes active object, which is composed of dirt and ices. Comets are characterized by dust and gas tails when in proximity to the Sun. Far from the Sun it is difficult to distinguish an asteroid from a comet. Meteoroid A small particle from an asteroi ...
... orbiting the Sun. Comets: A relatively small, sometimes active object, which is composed of dirt and ices. Comets are characterized by dust and gas tails when in proximity to the Sun. Far from the Sun it is difficult to distinguish an asteroid from a comet. Meteoroid A small particle from an asteroi ...
Which of the following statements is TRUE
... Week 5 – Quiz #6 Star X has a surface temperature that is 3 times higher than that of the Sun. Both stars have exactly the same radius. Which of the following statements is TRUE? A. The luminosity of the Sun is 81 times that of the star X B. The typical photon emitted by star X has a lower energy t ...
... Week 5 – Quiz #6 Star X has a surface temperature that is 3 times higher than that of the Sun. Both stars have exactly the same radius. Which of the following statements is TRUE? A. The luminosity of the Sun is 81 times that of the star X B. The typical photon emitted by star X has a lower energy t ...
The Science of Astronomy - Ohio Wesleyan University
... measurements of the positions of stars with positions measured by Greek astronomers about 170 years prior • Precession is a slow movement of the celestial poles with respect to the stars caused by shifting alignment of Earth’s rotational axis • Precession causes the coordinates of stars to change wi ...
... measurements of the positions of stars with positions measured by Greek astronomers about 170 years prior • Precession is a slow movement of the celestial poles with respect to the stars caused by shifting alignment of Earth’s rotational axis • Precession causes the coordinates of stars to change wi ...
BROCK UNIVERSITY Return both the exam script
... model of the solar system, which allowed him to determine the relative distances of the planets from the Sun. (a) heliocentric (b) geocentric (c) celestial sphere (d) epicycle ...
... model of the solar system, which allowed him to determine the relative distances of the planets from the Sun. (a) heliocentric (b) geocentric (c) celestial sphere (d) epicycle ...
A star is a - Trimble County Schools
... __________________ cannot distinguish the distance a star is from earth • Clusters are stars close to each other due to gravitational attraction Binary Stars • _____________________________ – Pairs of stars that revolve around one another – Gravitationally bound & orbiting a common center of mass • ...
... __________________ cannot distinguish the distance a star is from earth • Clusters are stars close to each other due to gravitational attraction Binary Stars • _____________________________ – Pairs of stars that revolve around one another – Gravitationally bound & orbiting a common center of mass • ...
ASTR 2020 Space Astronomy Homework #3 Due Tuesday, 4
... 3] Parallax. As we discussed in class, the unit called a parsec is defined as the distance at which the Earth-Sun mean separation (the Astronomical Unit), subtends 1 arc-second (assuming that the Earth-Sun separation is at right angles to the line connecting the Sun to the distant object). [a] How ...
... 3] Parallax. As we discussed in class, the unit called a parsec is defined as the distance at which the Earth-Sun mean separation (the Astronomical Unit), subtends 1 arc-second (assuming that the Earth-Sun separation is at right angles to the line connecting the Sun to the distant object). [a] How ...
Space Unit - Questions and Answers
... 19. What is the difference between meteors and comets? A meteor is a meteoroid that is trapped by Earth’s gravity and pulled down by Earth’s atmosphere. As it falls through Earth’s atmosphere, it rubs against the molecules of the air (this rubbing is called friction), it becomes hot and vaporizes a ...
... 19. What is the difference between meteors and comets? A meteor is a meteoroid that is trapped by Earth’s gravity and pulled down by Earth’s atmosphere. As it falls through Earth’s atmosphere, it rubs against the molecules of the air (this rubbing is called friction), it becomes hot and vaporizes a ...
Phys 100 – Astronomy (Dr. Ilias Fernini) Review Questions for
... large amounts of gas and dust but very few stars. large amounts of gas, dust, and stars. a single star and planets. thousands of super clusters. ...
... large amounts of gas and dust but very few stars. large amounts of gas, dust, and stars. a single star and planets. thousands of super clusters. ...
1ºESO SCIENCE: 9th October, 2007
... ……… and its excentric orbit: _____________ 15. It is a …………… and it is situated very …………….. to Mercury:_________ 16. It’s …………. and a shadow covers ………… Sun and it disappears. What happens? It’s an _______________ 17. When the …………… is clear you can see many ………. of light at ………. They are called___ ...
... ……… and its excentric orbit: _____________ 15. It is a …………… and it is situated very …………….. to Mercury:_________ 16. It’s …………. and a shadow covers ………… Sun and it disappears. What happens? It’s an _______________ 17. When the …………… is clear you can see many ………. of light at ………. They are called___ ...
Chapter 15 Notes - Valdosta State University
... spring and fall. The date in the spring is the second Sunday in March and the date in the fall is the first Sunday in November. Seasons and the Calendar The seasons are summer, fall, winter and spring. They occur due to the 23.5˚ tilt of the Earth’s axis of rotation with respect to the plane of its ...
... spring and fall. The date in the spring is the second Sunday in March and the date in the fall is the first Sunday in November. Seasons and the Calendar The seasons are summer, fall, winter and spring. They occur due to the 23.5˚ tilt of the Earth’s axis of rotation with respect to the plane of its ...
Astronomy Unit Test Review Sheet
... 2. What is an optical telescope? What is the difference between a reflecting and a refracting telescope? What other types of telescopes do scientists use to gather information? Optical telescopes are used to see visible light from far away. Refracting uses a glass lens and a reflecting telescope use ...
... 2. What is an optical telescope? What is the difference between a reflecting and a refracting telescope? What other types of telescopes do scientists use to gather information? Optical telescopes are used to see visible light from far away. Refracting uses a glass lens and a reflecting telescope use ...
Astronomy powerpoint
... Why is it cold if the Earth is closer to the Sun? • 1. It isn’t that much closer, relatively speaking. • 2. It is winter in the Northern Hemisphere because the Northern Hemisphere happens to be tipped away from the Sun at that time. ...
... Why is it cold if the Earth is closer to the Sun? • 1. It isn’t that much closer, relatively speaking. • 2. It is winter in the Northern Hemisphere because the Northern Hemisphere happens to be tipped away from the Sun at that time. ...
Solar System knowledge
... The origin of the Sun and of the Solar System is connected to the condensation of a primordial cloud of gas and dust as those often seen in our galaxy. It is probable that an external event triggered the collapse of the cloud, since its parts were in equilibrium. Scientists have put forward the hypo ...
... The origin of the Sun and of the Solar System is connected to the condensation of a primordial cloud of gas and dust as those often seen in our galaxy. It is probable that an external event triggered the collapse of the cloud, since its parts were in equilibrium. Scientists have put forward the hypo ...
32) What spacecraft mission crashed because the NASA contractor
... 29) Why can the Moon appear red during a lunar eclipse? A) The lunar surface has a number of red craters. B) Red light tends to be refracted more through the Earth’s atmosphere than blue light so the light reflected off the Moon appears red. C) Blue light tends to be refracted more through the Earth ...
... 29) Why can the Moon appear red during a lunar eclipse? A) The lunar surface has a number of red craters. B) Red light tends to be refracted more through the Earth’s atmosphere than blue light so the light reflected off the Moon appears red. C) Blue light tends to be refracted more through the Earth ...
32) What spacecraft mission crashed because the NASA contractor
... B) Red light tends to be refracted more through the Earth’s atmosphere than blue light so the light reflected off the Moon appears red. C) Blue light tends to be refracted more through the Earth’s atmosphere than red light so the light reflected off the Moon appears blue. D) Solar flares tend to emi ...
... B) Red light tends to be refracted more through the Earth’s atmosphere than blue light so the light reflected off the Moon appears red. C) Blue light tends to be refracted more through the Earth’s atmosphere than red light so the light reflected off the Moon appears blue. D) Solar flares tend to emi ...
NAME DATE Worksheet 62: Ellipse and Moon STRIVE FOR 85!!!!
... the diagram below, which represents the path of a planet in an elliptical orbit around a star. Points A, B, C, and D indicate four orbital positions of the planet. ...
... the diagram below, which represents the path of a planet in an elliptical orbit around a star. Points A, B, C, and D indicate four orbital positions of the planet. ...
What do the stars tell us?
... Measurements gave distance / speed between 10 and 15 billion years 10 Gyr is younger than the oldest stars!!! ...
... Measurements gave distance / speed between 10 and 15 billion years 10 Gyr is younger than the oldest stars!!! ...