Epsilon Aurigae Mystery and Opportunity
... • During the 2003-2004 observing season this variation had sped up to 71 days. • In 2007-2008 the period became 65 days. ...
... • During the 2003-2004 observing season this variation had sped up to 71 days. • In 2007-2008 the period became 65 days. ...
Double Stars in Scorpio`s Claws
... but you should be able to see two dim red stars that form a line with brighter ρ Scorpii between them. ...
... but you should be able to see two dim red stars that form a line with brighter ρ Scorpii between them. ...
Stars, Galaxies & Universe
... Classifying Stars • Stars are classified by size, temperature, and brightness. • Temperature of a star is indicated by color, hot stars are blue & cooler stars are red. • Apparent brightness is the brightness of a star as observed from earth. • Absolute magnitude is the brightness of a star observe ...
... Classifying Stars • Stars are classified by size, temperature, and brightness. • Temperature of a star is indicated by color, hot stars are blue & cooler stars are red. • Apparent brightness is the brightness of a star as observed from earth. • Absolute magnitude is the brightness of a star observe ...
Universe and Star Formation - White Plains Public Schools
... • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called planetary nebula. ...
... • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called planetary nebula. ...
What stars do Summary: Nuclear burning in stars •
... How do stars get from here to there? Here: Evolution through nuclear burning. Minitial > 8M ...
... How do stars get from here to there? Here: Evolution through nuclear burning. Minitial > 8M ...
Contemporary Physics - Department of Physics and Astronomy
... Suppose that you were given the task of determining the three dimensional distribution of stars in our Milky Way, and galaxies in space beyond the Milky Way. Describe how you would do this. Keep in mind that you are observing from a fixed point on a rotating Earth, that except for the nearest stars ...
... Suppose that you were given the task of determining the three dimensional distribution of stars in our Milky Way, and galaxies in space beyond the Milky Way. Describe how you would do this. Keep in mind that you are observing from a fixed point on a rotating Earth, that except for the nearest stars ...
25drake6s
... The Drake Equation In 1961, astronomer Frank Drake developed a formula to predict the number of intelligent species in our galaxy that we could communicate with right now ...
... The Drake Equation In 1961, astronomer Frank Drake developed a formula to predict the number of intelligent species in our galaxy that we could communicate with right now ...
Photometry
... Compare an Unknown Star to a Known Star • Another useful technique is to measure a star in comparison to another star, very convenient when looking for stars that vary like Cepheids • Using a comparison star avoids the issues with instrument and Look through the same air path atmospheric Also reduc ...
... Compare an Unknown Star to a Known Star • Another useful technique is to measure a star in comparison to another star, very convenient when looking for stars that vary like Cepheids • Using a comparison star avoids the issues with instrument and Look through the same air path atmospheric Also reduc ...
The Hubble Deep Field (HDF)
... region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. They pointed Hubble at a fairly empty region of space, one where very few stars are seen. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field a ...
... region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. They pointed Hubble at a fairly empty region of space, one where very few stars are seen. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field a ...
The Hubble Deep Field (HDF)
... region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. They pointed Hubble at a fairly empty region of space, one where very few stars are seen. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field a ...
... region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. They pointed Hubble at a fairly empty region of space, one where very few stars are seen. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field a ...
Volcanoes and Igneous Activity Earth
... • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called planetary nebula. ...
... • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called planetary nebula. ...
Cosmology, galaxies, stars and the sun
... •Gravity begins to pull the gases inward during the birth of a star. •Then, with gravity, the density of the gases increases which causes the pressure and temperature to increase, until the star finally stabilizes. •A star can exist anywhere from 1 Million to 30 Billion years! (depending ...
... •Gravity begins to pull the gases inward during the birth of a star. •Then, with gravity, the density of the gases increases which causes the pressure and temperature to increase, until the star finally stabilizes. •A star can exist anywhere from 1 Million to 30 Billion years! (depending ...
Astronomy 12 - hrsbstaff.ednet.ns.ca
... E. Estimate Main-Sequence Life of Sun. Estimate the main-sequence lifetime of the Sun: i.e., how long the Sun will burn hydrogen into helium in its core. Assume that the Sun was initially entirely composed of hydrogen, and that the Sun's current mass was its mass before main-sequence burning. You wi ...
... E. Estimate Main-Sequence Life of Sun. Estimate the main-sequence lifetime of the Sun: i.e., how long the Sun will burn hydrogen into helium in its core. Assume that the Sun was initially entirely composed of hydrogen, and that the Sun's current mass was its mass before main-sequence burning. You wi ...
Planisphere
... actually find something in the sky when we go outside. The altitude-azimuth coordinate system, called the horizon system, fulfills the opposite role: it tells us how to find something in the sky at a given time at a particular location. If somehow we could convert between these systems, we could loo ...
... actually find something in the sky when we go outside. The altitude-azimuth coordinate system, called the horizon system, fulfills the opposite role: it tells us how to find something in the sky at a given time at a particular location. If somehow we could convert between these systems, we could loo ...
c - Fsusd
... 8) The earliest stage of a star’s “life” is called a ______. a) protostar b) giant star c) quasar d) white dwarf ...
... 8) The earliest stage of a star’s “life” is called a ______. a) protostar b) giant star c) quasar d) white dwarf ...
The Earth`s Orbit and Season Demonstration
... summer. Rotate the earth on its axis until North America is directly opposite the sun, midnight. Notice the constellation directly in front of North America, Sagittarius Winter Solstice. In six months the Earth will travel around the sun to the other side and the Sun will appears in the constellatio ...
... summer. Rotate the earth on its axis until North America is directly opposite the sun, midnight. Notice the constellation directly in front of North America, Sagittarius Winter Solstice. In six months the Earth will travel around the sun to the other side and the Sun will appears in the constellatio ...
Star formation and lifetimes
... 1. Star A’s fusion rate will be more than two times slower than that of Star B. 2. Star A’s fusion rate will be two times slower than that of Star B. 3. Star A’s fusion rate will be the same as that of Star B. 4. Star A’s fusion rate will be two times faster than that of Star B. 5. Star A’s fusion r ...
... 1. Star A’s fusion rate will be more than two times slower than that of Star B. 2. Star A’s fusion rate will be two times slower than that of Star B. 3. Star A’s fusion rate will be the same as that of Star B. 4. Star A’s fusion rate will be two times faster than that of Star B. 5. Star A’s fusion r ...
Mountain Skies March 7 2016
... The planets: Finally! After months of having none of the five visible planets except the elusive Mercury in the evening sky, Jupiter is rising right about sunset. Look for it low in the east as the sun sets in the west. Until a waxing crescent moon enters the evening sky later this week, Jupiter is ...
... The planets: Finally! After months of having none of the five visible planets except the elusive Mercury in the evening sky, Jupiter is rising right about sunset. Look for it low in the east as the sun sets in the west. Until a waxing crescent moon enters the evening sky later this week, Jupiter is ...
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.