Hot-plate model of stars March 14 − Observed properties of stars
... Spectral class is a proxy for temperature OBAFGKM. O is hottest ...
... Spectral class is a proxy for temperature OBAFGKM. O is hottest ...
The Sun is a mass of Incandescent Gas
... up and start to glow forming Protostars. If a protostar contains enough matter the central temperature reaches 15 million degrees C. ...
... up and start to glow forming Protostars. If a protostar contains enough matter the central temperature reaches 15 million degrees C. ...
Powerpoint Presentation (large file)
... • A high-mass star dies in a violent cataclysm in which its core collapses and most of its matter is ejected into space at high speeds • The luminosity of the star increases suddenly by a factor of around 108 during this explosion, producing a supernova • The matter ejected from the supernova, movin ...
... • A high-mass star dies in a violent cataclysm in which its core collapses and most of its matter is ejected into space at high speeds • The luminosity of the star increases suddenly by a factor of around 108 during this explosion, producing a supernova • The matter ejected from the supernova, movin ...
Reason for the Seasons
... and North America have winter, southern continents like Australia have summer. Why does this happen? To understand why we have seasons, imagine yourself looking at Earth from far away. ...
... and North America have winter, southern continents like Australia have summer. Why does this happen? To understand why we have seasons, imagine yourself looking at Earth from far away. ...
©JSR 2010 Seeing gravity 1/2 Gravitation – if the Earth could see
... objects themselves have intrinsically different brightnesses (the astronomers’ absolute magnitude) and partly because the light from distant objects fades as the inverse square of the distances they are away. Gravity works in much the same way. The gravitational force experienced by the Earth depend ...
... objects themselves have intrinsically different brightnesses (the astronomers’ absolute magnitude) and partly because the light from distant objects fades as the inverse square of the distances they are away. Gravity works in much the same way. The gravitational force experienced by the Earth depend ...
COM 2014 January
... daughter, Danae, so that no man could ever reach her. But this did not stop the god Zeus, with his fondness for mortal women. He entered her prison and Perseus (per Zeus, sired by Zeus) was the result. Dismayed, Acrisius put his daughter and her child into a wooden chest and set them adrift on the h ...
... daughter, Danae, so that no man could ever reach her. But this did not stop the god Zeus, with his fondness for mortal women. He entered her prison and Perseus (per Zeus, sired by Zeus) was the result. Dismayed, Acrisius put his daughter and her child into a wooden chest and set them adrift on the h ...
One way to measure distance
... Demonstration. Close one eye and hold your hand at arms length, pointing the tip of your index finger at me. Close one eye then open the other. What happens? ...
... Demonstration. Close one eye and hold your hand at arms length, pointing the tip of your index finger at me. Close one eye then open the other. What happens? ...
Distance, Size, and Temperature of a Star
... Because blue stars are large, and compact, they burn their fuel quickly, which gives them a very high temperature. These stars often run out of fuel in only 10,000 - 100,000 years. A blue giant is very bright. Like a lighthouse, they shine across a great distance. Even though blue giant stars are ra ...
... Because blue stars are large, and compact, they burn their fuel quickly, which gives them a very high temperature. These stars often run out of fuel in only 10,000 - 100,000 years. A blue giant is very bright. Like a lighthouse, they shine across a great distance. Even though blue giant stars are ra ...
Name____________________________________________________________________ Astronomy Packet 2 1) The Mayans tracked which celestial bodies____________________________________
... __________________________ which was of importance for agriculture in this desert society. The stars in the modern constellation of Orion symbolized the ______________ of the God_______________ and also line up perfectly with the ______________________. Eclipses were explained by this culture as ___ ...
... __________________________ which was of importance for agriculture in this desert society. The stars in the modern constellation of Orion symbolized the ______________ of the God_______________ and also line up perfectly with the ______________________. Eclipses were explained by this culture as ___ ...
H-R Diagram Lab
... information about them. Together, they created a diagram on which they mapped stars by magnitude and spectral class. After the astronomers had completed graphing the stars, they noticed that several patterns appeared. First, they noticed that ninety per cent of the stars fell along a diagonal line f ...
... information about them. Together, they created a diagram on which they mapped stars by magnitude and spectral class. After the astronomers had completed graphing the stars, they noticed that several patterns appeared. First, they noticed that ninety per cent of the stars fell along a diagonal line f ...
2009_ASU_Exam
... closer to both stars, which star will appear brighter from the new observation point? 14) Star P is a pulsating variable star. As it pulses, the apparent magnitude of Star P changes by 5 magnitudes. Assuming that its temperature remains constant as it pulses, what is the ratio of Star P’s maximum an ...
... closer to both stars, which star will appear brighter from the new observation point? 14) Star P is a pulsating variable star. As it pulses, the apparent magnitude of Star P changes by 5 magnitudes. Assuming that its temperature remains constant as it pulses, what is the ratio of Star P’s maximum an ...
File
... (93 million miles, 150 million kilometers). It’s a useful unit when describing distances in a solar system. The Earth is 1 AU (one Astronomical Unit) from the Sun. Jupiter is 5.2 AU from the Sun. Pluto is 40 AU from the Sun. Distance to the next closest star (after the Sun) ...
... (93 million miles, 150 million kilometers). It’s a useful unit when describing distances in a solar system. The Earth is 1 AU (one Astronomical Unit) from the Sun. Jupiter is 5.2 AU from the Sun. Pluto is 40 AU from the Sun. Distance to the next closest star (after the Sun) ...
Critical Thinking Questions: (work on these with a partner) Post
... 1. During the formation of a Red Giant Star, the core of a star pushes the outer shell back 2. Protostars & Main Sequence Stars only enough to make the star larger. A. Why is a protostar not classified as an actual star? & what needs However, during the formation of a planetary to occur for a star t ...
... 1. During the formation of a Red Giant Star, the core of a star pushes the outer shell back 2. Protostars & Main Sequence Stars only enough to make the star larger. A. Why is a protostar not classified as an actual star? & what needs However, during the formation of a planetary to occur for a star t ...
What would the sky look like from the North Pole
... time of the year do they reach the zenith? [hint: remember the tilt angle of the spin axis of the Earth]. d) Saturn is presently at a distance of about 10 AU from the Earth. How long does it take a radio signal from the Cassini spacecraft to reach the mission control center in California? Radio wave ...
... time of the year do they reach the zenith? [hint: remember the tilt angle of the spin axis of the Earth]. d) Saturn is presently at a distance of about 10 AU from the Earth. How long does it take a radio signal from the Cassini spacecraft to reach the mission control center in California? Radio wave ...
ASTR 105 Intro Astronomy: The Solar System
... We can recognize solstices and equinoxes by Sun’s path across sky: Summer solstice: Highest path, rise and set at most extreme north of due east. ...
... We can recognize solstices and equinoxes by Sun’s path across sky: Summer solstice: Highest path, rise and set at most extreme north of due east. ...
answers2004_05_BC - Particle Physics and Particle Astrophysics
... almost all systems have only one giant planet, and very few indeed have more than 2 (cf. Jupiter and much smaller Saturn in solar system) planets are discovered around stars with heavy element content similar to or higher than the Sun spectral class is also similar to the Sun’s ...
... almost all systems have only one giant planet, and very few indeed have more than 2 (cf. Jupiter and much smaller Saturn in solar system) planets are discovered around stars with heavy element content similar to or higher than the Sun spectral class is also similar to the Sun’s ...
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.