lecture12
... temperatures of stars on a scale defined by spectral types, called O B A F G K M, ranging from the hottest (type O) to the coolest (type M) stars. ...
... temperatures of stars on a scale defined by spectral types, called O B A F G K M, ranging from the hottest (type O) to the coolest (type M) stars. ...
Magnitude scale theory
... The magnitudes of stars - theory How bright a star looks is given by its apparent magnitude. This is different from its absolute magnitude. The absolute magnitude of a star is defined as the apparent magnitude that it would have if placed at a distance of 10 parsecs from the Earth. Consider two star ...
... The magnitudes of stars - theory How bright a star looks is given by its apparent magnitude. This is different from its absolute magnitude. The absolute magnitude of a star is defined as the apparent magnitude that it would have if placed at a distance of 10 parsecs from the Earth. Consider two star ...
Chapter 2: The Sky
... Stars are named by a Greek letter (a, b, g) according to their relative brightness within a given constellation + the possessive form of the name of the constellation: Betelgeuse = a Orionis, Rigel = b Orionis ...
... Stars are named by a Greek letter (a, b, g) according to their relative brightness within a given constellation + the possessive form of the name of the constellation: Betelgeuse = a Orionis, Rigel = b Orionis ...
Space Science Distance Definitions
... 149,597,870.7 kilometers (92,955,807.3 mi). • One Light Year (ly) is the distance that light travels in vacuum in one year. Equal to 10×1015 meters =63.24×103 AU • Parsec (pc) is equal to 3.26 light years (3.1×1013) km. It is 206,265 AU ...
... 149,597,870.7 kilometers (92,955,807.3 mi). • One Light Year (ly) is the distance that light travels in vacuum in one year. Equal to 10×1015 meters =63.24×103 AU • Parsec (pc) is equal to 3.26 light years (3.1×1013) km. It is 206,265 AU ...
Navigation by the North Star - Science
... place for mariners. Good navigation was vital for survival. The North Star was important for getting around. ...
... place for mariners. Good navigation was vital for survival. The North Star was important for getting around. ...
Stars - Mc Guckin Science
... Life span of a star depends on its size. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
... Life span of a star depends on its size. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
STARS Chapter 8 Section 1
... use light years to measure the distance from Earth to the stars. • A light year is the distance that light travels in one year, or 186,282 miles per second, or 5.88 trillion miles**** This quasar is 10 billion light years from Earth ...
... use light years to measure the distance from Earth to the stars. • A light year is the distance that light travels in one year, or 186,282 miles per second, or 5.88 trillion miles**** This quasar is 10 billion light years from Earth ...
Astronomy pt. 2
... Ex. Sirius (10,000 C) 3. Yellow – Average (5000-6000 C ) temperature and middle age o ...
... Ex. Sirius (10,000 C) 3. Yellow – Average (5000-6000 C ) temperature and middle age o ...
Cat`s EyE - Chandra X
... HOW: The spectacular filamentary structures in planetary nebulas come from the outer layers that have been shed by the dying star then sculpted by intense radiation from the hot central star (bright white dot in middle) that will eventually become a white dwarf. WHY: It is important to understand th ...
... HOW: The spectacular filamentary structures in planetary nebulas come from the outer layers that have been shed by the dying star then sculpted by intense radiation from the hot central star (bright white dot in middle) that will eventually become a white dwarf. WHY: It is important to understand th ...
The coolest White Dwarf— older than the age of the universe?
... Problem 1—the orbit One of the problems in this binary system is its low eccentricity. It has a near circular orbit. A supernova explosion happening nearby would certainly give an impulse to the orbiting star disrupting or ejecting it completely or at least adding energy to ...
... Problem 1—the orbit One of the problems in this binary system is its low eccentricity. It has a near circular orbit. A supernova explosion happening nearby would certainly give an impulse to the orbiting star disrupting or ejecting it completely or at least adding energy to ...
No Slide Title
... The neutron star may continue to gain mass from nearby stars. At a critical moment, it becomes so dense it collapses in on itself, becoming a single point of zero size! Its gravity is so strong that even light cannot escape from inside a certain boundary - the EVENT HORIZON. The star is now a BLACK ...
... The neutron star may continue to gain mass from nearby stars. At a critical moment, it becomes so dense it collapses in on itself, becoming a single point of zero size! Its gravity is so strong that even light cannot escape from inside a certain boundary - the EVENT HORIZON. The star is now a BLACK ...
POWERPOINT JEOPARDY - Mr. Dalton
... A diagram that shows the relationship between the surface temperatures of stars and their absolute brightness. ...
... A diagram that shows the relationship between the surface temperatures of stars and their absolute brightness. ...
Study Guide - Universe Exam key 2014-15 v2
... 4. Make a drawing of each type of galaxy and label them. Include 1-2 facts about each one. Indicate which one represents our own galaxy. Spiral Galaxy looks like a pinwheel and is the type of galaxy we live in. Elliptical galaxies look like flattened balls. The most common. Irregular Galaxies have n ...
... 4. Make a drawing of each type of galaxy and label them. Include 1-2 facts about each one. Indicate which one represents our own galaxy. Spiral Galaxy looks like a pinwheel and is the type of galaxy we live in. Elliptical galaxies look like flattened balls. The most common. Irregular Galaxies have n ...
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.