Summary of Double Star Discoveries and JDSO Submissions
... (695) Bella occults TYC 2332-01054-1 T Beard, David Dunham, Paul Maley, Walt Morgan, R Stanton The Bella event found a component so close to the primary star that the secondary occultation was barely detectable. This is an example of an ABAB even with very unequal star magnitudes. This report is sti ...
... (695) Bella occults TYC 2332-01054-1 T Beard, David Dunham, Paul Maley, Walt Morgan, R Stanton The Bella event found a component so close to the primary star that the secondary occultation was barely detectable. This is an example of an ABAB even with very unequal star magnitudes. This report is sti ...
The Hidden Lives of Galaxies NSTA 2001
... Giants and Supergiants •These lie in the upper right of the HR diagram, meaning that they are cool but luminous (bright). •Their luminosity is high because they are very large, and so have a big surface area to radiate from. Typically they may have a radius one hundred times that of the Sun. ...
... Giants and Supergiants •These lie in the upper right of the HR diagram, meaning that they are cool but luminous (bright). •Their luminosity is high because they are very large, and so have a big surface area to radiate from. Typically they may have a radius one hundred times that of the Sun. ...
Chapter 29 Review
... What causes the dark bands observed in a solar spectrum? 1. the emission of specific elements 2. different chemical elements which absorb light at specific wavelengths 3. highly compressed, glowing gas 4. warmer gas in front of a source that emits a continuous spectrum ...
... What causes the dark bands observed in a solar spectrum? 1. the emission of specific elements 2. different chemical elements which absorb light at specific wavelengths 3. highly compressed, glowing gas 4. warmer gas in front of a source that emits a continuous spectrum ...
Multiple choice test questions 1, Winter Semester
... A) Mars is moving around the Sun in the opposite direction from which Earth is moving around the Sun. B) Earth and Mars are getting closer together. C) Earth is catching up with and passing by Mars in their respective orbits. D) Earth and Mars are on opposite sides of the Sun. 9) What makes the Nort ...
... A) Mars is moving around the Sun in the opposite direction from which Earth is moving around the Sun. B) Earth and Mars are getting closer together. C) Earth is catching up with and passing by Mars in their respective orbits. D) Earth and Mars are on opposite sides of the Sun. 9) What makes the Nort ...
Irregular Galaxies
... • Nova: A star that suddenly increases in brightness in just a few hours or days. • With a nova, the star may get up to 100 times brighter. • Novas are believed to be caused when a star in a binary-star system captures gas from the companion star. • This gas strikes the surface of the nova star, cau ...
... • Nova: A star that suddenly increases in brightness in just a few hours or days. • With a nova, the star may get up to 100 times brighter. • Novas are believed to be caused when a star in a binary-star system captures gas from the companion star. • This gas strikes the surface of the nova star, cau ...
Chapter 19 I. The Sun, Earth and Moon A. Sun is our closest star B
... E. Gravity holds the solar system together 1. We usually think of gravity as the attractive force that pulls us to the Earth. 2. True definition of gravity is the attractive force between objects. 3. The more mass an object has the greater its gravitational pull. a. The Sun has more mass than any ob ...
... E. Gravity holds the solar system together 1. We usually think of gravity as the attractive force that pulls us to the Earth. 2. True definition of gravity is the attractive force between objects. 3. The more mass an object has the greater its gravitational pull. a. The Sun has more mass than any ob ...
But how to find Polaris?
... • Just look for the Big Dipper -- and notice that the Dipper has a bowl and a handle. Draw a line between the two outermost stars in the bowl of the Big Dipper. This line points to Polaris, the North Star! ...
... • Just look for the Big Dipper -- and notice that the Dipper has a bowl and a handle. Draw a line between the two outermost stars in the bowl of the Big Dipper. This line points to Polaris, the North Star! ...
Astronomy 103 – Midterm 2 – October 29, 2014
... 24. Once the luminosity of a star is known, what has to be measured in order to find the star’s radius? a) parallax angle to find distance b) color to find distance c) color to find surface temperature d) parallax angle to find surface temperature ...
... 24. Once the luminosity of a star is known, what has to be measured in order to find the star’s radius? a) parallax angle to find distance b) color to find distance c) color to find surface temperature d) parallax angle to find surface temperature ...
Can you write numbers in scientific notation
... How does Einstein’s model of gravity differ from Newton’s description? Why Einstein’s description taken to be “more complete” than Newton’s? What are the effects an outside observer would notice as a “volunteer” falls toward the event horizon of a black hole? Key Terms to Know The following is a lis ...
... How does Einstein’s model of gravity differ from Newton’s description? Why Einstein’s description taken to be “more complete” than Newton’s? What are the effects an outside observer would notice as a “volunteer” falls toward the event horizon of a black hole? Key Terms to Know The following is a lis ...
Milky Way structure
... • What is the closest galaxy to the Milky Way? The new answer to this old question is the Canis Major dwarf galaxy. For many years astronomers thought the Large Magellan Cloud (LMC) was closest, but its title was supplanted in 1994 by the Sagittarius dwarf galaxy. Recent measurements ind ...
... • What is the closest galaxy to the Milky Way? The new answer to this old question is the Canis Major dwarf galaxy. For many years astronomers thought the Large Magellan Cloud (LMC) was closest, but its title was supplanted in 1994 by the Sagittarius dwarf galaxy. Recent measurements ind ...
1 au d p = 1 au d
... Local luminosity function (stars with d < 20 pc) for the Milky Way measured by Kroupa, Tout & Gilmore (1993): ...
... Local luminosity function (stars with d < 20 pc) for the Milky Way measured by Kroupa, Tout & Gilmore (1993): ...
Beyond the Solar System Homework for Geology 8
... 45. Large stars evolve much more slowly than do small stars. 46. Only the most massive stars evolve to become black holes. 47. Hot stars evolve much more rapidly than do cool stars. 48. Degenerate matter is highly condensed material, where even the electrons of atoms are pushed in, towards the cente ...
... 45. Large stars evolve much more slowly than do small stars. 46. Only the most massive stars evolve to become black holes. 47. Hot stars evolve much more rapidly than do cool stars. 48. Degenerate matter is highly condensed material, where even the electrons of atoms are pushed in, towards the cente ...
Yeatman-Liddell College Preparatory Middle School Winter
... Our local star is the Sun. It appears to be rather small as stars go. Stars are fueled by hydrogen, and they exist until the last of their hydrogen fuel is used up. Our Sun will not run out of hydrogen for 5 billion years. Then our Sun will swell up and become a red giant. The core will continue to ...
... Our local star is the Sun. It appears to be rather small as stars go. Stars are fueled by hydrogen, and they exist until the last of their hydrogen fuel is used up. Our Sun will not run out of hydrogen for 5 billion years. Then our Sun will swell up and become a red giant. The core will continue to ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.