Deducing Temperatures and Luminosities of Stars
... area • If two stars have same T but different luminosities (per unit surface area), then the MORE luminous star must be LARGER. ...
... area • If two stars have same T but different luminosities (per unit surface area), then the MORE luminous star must be LARGER. ...
VISIT TO NORMAN LOCKYER OBSERVATORY IN SIDMOUTH
... Ursa Major contains many interesting "deep sky" objects. The brightest, listed in Messier's Catalogue, are shown on the chart, but there are many fainter galaxies in the region too. In the upper right of the constellation are a pair of interacting galaxies M81 and M82 shown in the image below. M82 i ...
... Ursa Major contains many interesting "deep sky" objects. The brightest, listed in Messier's Catalogue, are shown on the chart, but there are many fainter galaxies in the region too. In the upper right of the constellation are a pair of interacting galaxies M81 and M82 shown in the image below. M82 i ...
Hall Scorpius constellation (11) Jacob Hall Physics 1040, sec 002
... afterwards placed in the stars as a pair of Constellations. The two combatants are never seen in the sky at the same time, for one constellation sets as the other rises. The scorpion's claws were originally formed by Libra. "Hesiod says that . . . Orion went away to Krete and spent his time hunting ...
... afterwards placed in the stars as a pair of Constellations. The two combatants are never seen in the sky at the same time, for one constellation sets as the other rises. The scorpion's claws were originally formed by Libra. "Hesiod says that . . . Orion went away to Krete and spent his time hunting ...
Deep Space Mystery Note Form 3
... In these systems supernovas occur also. Stars up to eight times the mass of our sun usually evolve into white dwarfs. A star that is condensed to this size has a very strong gravitational pull. With that gravity, if the second star is close enough, it can pull material from there. White dw ...
... In these systems supernovas occur also. Stars up to eight times the mass of our sun usually evolve into white dwarfs. A star that is condensed to this size has a very strong gravitational pull. With that gravity, if the second star is close enough, it can pull material from there. White dw ...
White Dwarf Stars - University of California Observatories
... • A black hole accelerates its surrounding material (often gas from a binary companion) to very high speeds in an accretion disk. • The heat generated by viscosity (friction) in this high speed gas produces X-rays. Some of the gas is ultimately swallowed by the black hole. ...
... • A black hole accelerates its surrounding material (often gas from a binary companion) to very high speeds in an accretion disk. • The heat generated by viscosity (friction) in this high speed gas produces X-rays. Some of the gas is ultimately swallowed by the black hole. ...
Main-sequence stars - Stellar Populations
... Main-sequence stars are fusing hydrogen into helium in their cores like the Sun Luminous mainsequence stars are hot (blue) Less luminous ones are cooler (yellow or red) ...
... Main-sequence stars are fusing hydrogen into helium in their cores like the Sun Luminous mainsequence stars are hot (blue) Less luminous ones are cooler (yellow or red) ...
Conceptobasico.pdf
... At this time, the object is at its maximum altitude in the sky. The altazimuth coordinates of an object are local coordinates. Stars very far south near the South Celestial Pole do not rise at all, and they remain unseen for observers in the north. As the Earth orbits the Sun, we see the Sun moving ...
... At this time, the object is at its maximum altitude in the sky. The altazimuth coordinates of an object are local coordinates. Stars very far south near the South Celestial Pole do not rise at all, and they remain unseen for observers in the north. As the Earth orbits the Sun, we see the Sun moving ...
Our Universe
... developed by the German-born physicist Albert Einstein. The theory was published in 1916. •The surface of a black hole is known as the event horizon. This is not a normal surface that you could see or touch. At the event horizon, the pull of gravity becomes infinitely strong. Thus, an object can exi ...
... developed by the German-born physicist Albert Einstein. The theory was published in 1916. •The surface of a black hole is known as the event horizon. This is not a normal surface that you could see or touch. At the event horizon, the pull of gravity becomes infinitely strong. Thus, an object can exi ...
Epsilon Aurigae Mystery and Opportunity
... began "regular" observing once every few years around 1842-1843, and the data from both men showed that the star became significantly fainter around 1847. • Observers later in the 19th Century recorded another dimming event in 1874-1875, and another in 19011902. ...
... began "regular" observing once every few years around 1842-1843, and the data from both men showed that the star became significantly fainter around 1847. • Observers later in the 19th Century recorded another dimming event in 1874-1875, and another in 19011902. ...
Phobos
... gravitational field of a foreground star amplifies the light of a background star that momentarily aligns with it. The particular character of the light magnification can reveal clues to the nature of the foreground star and any associated planets. However, without identification and characterizatio ...
... gravitational field of a foreground star amplifies the light of a background star that momentarily aligns with it. The particular character of the light magnification can reveal clues to the nature of the foreground star and any associated planets. However, without identification and characterizatio ...
TAP 702- 6: Binary stars - Teaching Advanced Physics
... In many binary stars, the two stars are not perfectly lined up when seen from Earth. This means that there will not be any dimming or brightening of the light, because the dimmer star will not block out the light from the brighter one. How might an astronomer tell, from the spectrum, that there are ...
... In many binary stars, the two stars are not perfectly lined up when seen from Earth. This means that there will not be any dimming or brightening of the light, because the dimmer star will not block out the light from the brighter one. How might an astronomer tell, from the spectrum, that there are ...
Chapter 8 - TeacherWeb
... A star life cycle: first stage: it is a ball of gas and dust. Gravity pulls the dust and gas together into a sphere. As the sphere becomes denser it becomes hotter. Hydrogen changes to helium by a process called nuclear fusion. When a star dies its materials return to space---sometimes to form new s ...
... A star life cycle: first stage: it is a ball of gas and dust. Gravity pulls the dust and gas together into a sphere. As the sphere becomes denser it becomes hotter. Hydrogen changes to helium by a process called nuclear fusion. When a star dies its materials return to space---sometimes to form new s ...
Last Year`s Exam, Section B
... the Sun can be found anywhere. Brighter main-sequence stars are more massive. Luminosity increases much faster than mass: a star 10 times as massive is 10000 times as luminous. Therefore massive stars last for much shorter time on main sequence (poorer ratio of power used to fuel available!) ...
... the Sun can be found anywhere. Brighter main-sequence stars are more massive. Luminosity increases much faster than mass: a star 10 times as massive is 10000 times as luminous. Therefore massive stars last for much shorter time on main sequence (poorer ratio of power used to fuel available!) ...
Week 9 Concept Summary - UC Berkeley Astronomy w
... next week for what happens when it does. 8. Novae: If a white dwarf is in a binary system, and is close enough to its companion star, then as the companion becomes a red giant and expands, the white dwarf’s gravity can actually pull some of the mass off of the other star onto it. This hydrogen build ...
... next week for what happens when it does. 8. Novae: If a white dwarf is in a binary system, and is close enough to its companion star, then as the companion becomes a red giant and expands, the white dwarf’s gravity can actually pull some of the mass off of the other star onto it. This hydrogen build ...
Naked Eye, Binocular, or Small Backyard Telescope Night Sky
... Basic Scientific Content Information about what you can see in the night sky with your naked eye, binoculars, or a small telescope: 1.) The Moon – The Moon is the only natural satelli ...
... Basic Scientific Content Information about what you can see in the night sky with your naked eye, binoculars, or a small telescope: 1.) The Moon – The Moon is the only natural satelli ...
Cassiopeia (constellation)
Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper.In northern locations above 34ºN latitude it is visible year-round and in the (sub)tropics it can be seen at its clearest from September to early November in its characteristic 'M' shape. Even in low southern latitudes below 25ºS is can be seen low in the North.