How Big is Big? Integrated Science 2 Name: Date: Pd: Select items
... A billion is 109 or 1,000,000,000. And it is a BIG number! There are many cases in which numbers like a billion are used to describe topics in science, such as the age of the universe, the length of a galaxy, or number of stars in a galaxy. Before we begin to look at our Origins unit, which covers t ...
... A billion is 109 or 1,000,000,000. And it is a BIG number! There are many cases in which numbers like a billion are used to describe topics in science, such as the age of the universe, the length of a galaxy, or number of stars in a galaxy. Before we begin to look at our Origins unit, which covers t ...
Friday, April 25 - Otterbein University
... distance ladder out as far as we can see Cepheids – about 50 million ly • In 1920 Hubble used this technique to measure the distance to Andromeda (about 2 million ly) • Works best for periodic variables ...
... distance ladder out as far as we can see Cepheids – about 50 million ly • In 1920 Hubble used this technique to measure the distance to Andromeda (about 2 million ly) • Works best for periodic variables ...
Virtual HR Diagram Lab
... Draw an arrow showing the direction of increasing mass for main sequence stars on the diagram. Label it M. (Note: this arrow only applies to main sequence stars, but that is over 90% of stars.) ...
... Draw an arrow showing the direction of increasing mass for main sequence stars on the diagram. Label it M. (Note: this arrow only applies to main sequence stars, but that is over 90% of stars.) ...
HR diagram
... units of magnitudes. This version of the HR diagram is also frequently termed the color-magnitude diagram. The theoretical HR diagram plots the luminosity of stars expressed in solar units, against stellar surface temperature, expressed using the Kelvin temperature scale. The X-axis is also labeled ...
... units of magnitudes. This version of the HR diagram is also frequently termed the color-magnitude diagram. The theoretical HR diagram plots the luminosity of stars expressed in solar units, against stellar surface temperature, expressed using the Kelvin temperature scale. The X-axis is also labeled ...
S T A R S
... Alpha Centauri is the closest binary to our sun and Proxima Centauri orbits this binary. Omega Centauri (NGC 5139) is globular cluster. The two pointers Apha & Beta Centauri point to Crux. (NGC is the abbreviation for New General Catalogue which is a listing of star clusters, nebulae and galaxies.) ...
... Alpha Centauri is the closest binary to our sun and Proxima Centauri orbits this binary. Omega Centauri (NGC 5139) is globular cluster. The two pointers Apha & Beta Centauri point to Crux. (NGC is the abbreviation for New General Catalogue which is a listing of star clusters, nebulae and galaxies.) ...
Document
... A brown dwarf is a substellar object below the sustained hydrogenburning limit of about 7.5% to 8.0% solar masses, and forms in a manner similar to stars by fragmentation of collapsing gas clouds. An extra-solar giant planet is a giant planet like Jupiter in orbit around a star other than the sun, a ...
... A brown dwarf is a substellar object below the sustained hydrogenburning limit of about 7.5% to 8.0% solar masses, and forms in a manner similar to stars by fragmentation of collapsing gas clouds. An extra-solar giant planet is a giant planet like Jupiter in orbit around a star other than the sun, a ...
The Ever-Changing Sky
... Precession of Earth’s Rotation Axis • Precession: The rotation of the rotation axis of Earth (with respect to distant stars) with respect to the rotation axis of Earth around the Sun. • The tilt of the Earth’s rotation axis with respect to the axis of Earth’s rotation around the Sun does not change ...
... Precession of Earth’s Rotation Axis • Precession: The rotation of the rotation axis of Earth (with respect to distant stars) with respect to the rotation axis of Earth around the Sun. • The tilt of the Earth’s rotation axis with respect to the axis of Earth’s rotation around the Sun does not change ...
ASTR101 Unit 14 Assessment Answer Key 1. It is believed that the
... 1. It is believed that the existence of liquid on a planet is a requirement for the existence of life. The habitable zone is the range of distances from a particular star such that the temperature of a planet would allow for liquid water on the surface. 2. The number of stars in the Milky Way Galaxy ...
... 1. It is believed that the existence of liquid on a planet is a requirement for the existence of life. The habitable zone is the range of distances from a particular star such that the temperature of a planet would allow for liquid water on the surface. 2. The number of stars in the Milky Way Galaxy ...
Earth Science Curriculum Unit 1 Maps and Measurements
... 1. Describe evidence that supports the Big Bang theory. 2. Identify the three main types of galaxies. 3. List several characteristics of the Milky Way Galaxy. Section 3 Radiation from space Time: 2 sessions 1. Explain the electromagnetic spectrum. Section 4 Stars and the Evolution of Stars Time: 3 s ...
... 1. Describe evidence that supports the Big Bang theory. 2. Identify the three main types of galaxies. 3. List several characteristics of the Milky Way Galaxy. Section 3 Radiation from space Time: 2 sessions 1. Explain the electromagnetic spectrum. Section 4 Stars and the Evolution of Stars Time: 3 s ...
AST 301 Introduction to Astronomy - University of Texas Astronomy
... For stars up to about 8 Msun, the story is like that for the Sun. It just runs faster. For each doubling of the mass, the luminosity goes up by about 10, so fusion must be running 10 times faster, so it uses up its fuel about 5 times faster. An 8 Msun star will use up it fuel in about (8 / 103) x 10 ...
... For stars up to about 8 Msun, the story is like that for the Sun. It just runs faster. For each doubling of the mass, the luminosity goes up by about 10, so fusion must be running 10 times faster, so it uses up its fuel about 5 times faster. An 8 Msun star will use up it fuel in about (8 / 103) x 10 ...
PISGAH Text by Dr. Bob Hayward ASTRONOMICAL Astronomer
... Of course, Pluto is much, much too faint to be seen with the naked eye; a large telescope is needed for that. Why are the planets clustered in the morning skies these mornings? There is no particular reason for that; the world will not end because of this apparent alignment of the planets. It is jus ...
... Of course, Pluto is much, much too faint to be seen with the naked eye; a large telescope is needed for that. Why are the planets clustered in the morning skies these mornings? There is no particular reason for that; the world will not end because of this apparent alignment of the planets. It is jus ...
ph507lecnote07
... giving eclipses observable as a change in the combined brightness with time (light curves). Some stars may be a combination of these. ...
... giving eclipses observable as a change in the combined brightness with time (light curves). Some stars may be a combination of these. ...
Introducing Astronomy
... “Latitude” is measured as Declination, a positive (above) or negative (below) degree from the Celestial Equator ...
... “Latitude” is measured as Declination, a positive (above) or negative (below) degree from the Celestial Equator ...
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.