FRIENDS OF THE PLANETARIUM NEWSLETTER April2002
... hottest. Stars are the same; with the hot 30,000 degree stars being a bluish white in colour and the cold stars like Betelgeuse being red. Our yellow sun lies in between with a surface temperature of around 6000 degrees. Despite its size of at least 160 million suns, its mass is only equivalent to s ...
... hottest. Stars are the same; with the hot 30,000 degree stars being a bluish white in colour and the cold stars like Betelgeuse being red. Our yellow sun lies in between with a surface temperature of around 6000 degrees. Despite its size of at least 160 million suns, its mass is only equivalent to s ...
Size of Sun and Size of Planets
... Our Sun is the largest body in the Solar System but it is still considered an average-sized star. It is the only star in our solar system. The Sun is over 93 million miles away from the earth. It’s light takes about 8 minutes to reach the earth. Without its heat and light there would be no life on o ...
... Our Sun is the largest body in the Solar System but it is still considered an average-sized star. It is the only star in our solar system. The Sun is over 93 million miles away from the earth. It’s light takes about 8 minutes to reach the earth. Without its heat and light there would be no life on o ...
Is This The End of the World or The Beginning of the New Age
... with all the other girls on our floor. We agreed to meet in our dorm after lights out to face the end together. I noticed a gathering tension and excitement, mixed with disbelief, and sympathy for Vera. At about 9:30, one by one, we assembled silently and sat somberly in our pajamas on the four narr ...
... with all the other girls on our floor. We agreed to meet in our dorm after lights out to face the end together. I noticed a gathering tension and excitement, mixed with disbelief, and sympathy for Vera. At about 9:30, one by one, we assembled silently and sat somberly in our pajamas on the four narr ...
Coordinate System Notes 3 - School District of La Crosse
... A. Egyptians- divided the sky into rgions conatining distinct star groups. 1. Given names and stories so they wopuld be remembered. B, Constellations are areas which have stars in particular arrangements. 1, No meaning to the arrangement except through imagaination 2. Many are associated with Greek ...
... A. Egyptians- divided the sky into rgions conatining distinct star groups. 1. Given names and stories so they wopuld be remembered. B, Constellations are areas which have stars in particular arrangements. 1, No meaning to the arrangement except through imagaination 2. Many are associated with Greek ...
Stellar Magnitudes and Distances
... • A couple slides ago, I kept using the word “apparent” in front of magnitude. • Apparent magnitude (m) is how bright a star appears from the earth’s surface. • You know that not all the stars are at the same distance from the earth, so even if they were all exactly the same true brightness, they st ...
... • A couple slides ago, I kept using the word “apparent” in front of magnitude. • Apparent magnitude (m) is how bright a star appears from the earth’s surface. • You know that not all the stars are at the same distance from the earth, so even if they were all exactly the same true brightness, they st ...
Largest mountain in solar system
... • Large rings made of ice and dust • 10 hour day • Possibly still forming • Tilts itself ...
... • Large rings made of ice and dust • 10 hour day • Possibly still forming • Tilts itself ...
Homework problems for Quiz 2: AY5 Spring 2013
... 9. The lowest luminosity white dwarfs in the Galaxy have a luminosity of around 10−5 L . Why are there no white dwarfs with lower luminosities than this? The Galaxy has a finite age. It is not old enough for white dwarfs to have cooled to lower temperatures and associated lower luminosities. 10. Wh ...
... 9. The lowest luminosity white dwarfs in the Galaxy have a luminosity of around 10−5 L . Why are there no white dwarfs with lower luminosities than this? The Galaxy has a finite age. It is not old enough for white dwarfs to have cooled to lower temperatures and associated lower luminosities. 10. Wh ...
Chapter 09
... Maximum Masses of Main-Sequence Stars Mmax ~ 50 - 100 solar masses a) More massive clouds fragment into smaller pieces during star formation. ...
... Maximum Masses of Main-Sequence Stars Mmax ~ 50 - 100 solar masses a) More massive clouds fragment into smaller pieces during star formation. ...
Astronomy Universe2
... • The H-R diagram represents a pattern that was discovered that allows stars to be compared by brightness and color. • The majority of stars are found in a band stretching diagonally across the diagram called the “Main Sequence”. • Stars start out in the Main Sequence and as the core cools, they mov ...
... • The H-R diagram represents a pattern that was discovered that allows stars to be compared by brightness and color. • The majority of stars are found in a band stretching diagonally across the diagram called the “Main Sequence”. • Stars start out in the Main Sequence and as the core cools, they mov ...
Quiz 1 Review, Astronomy 1144 - astronomy.ohio
... • What are Newton’s 3 Laws? 1. Law of Inertia: A body either stays at rest or moves in a straight line unless acted upon by an external force. Mass is a measure of this inertia. 2. Law of Acceleration: For a given mass, its acceleration is proportional to the force applied F = ma. More massive obje ...
... • What are Newton’s 3 Laws? 1. Law of Inertia: A body either stays at rest or moves in a straight line unless acted upon by an external force. Mass is a measure of this inertia. 2. Law of Acceleration: For a given mass, its acceleration is proportional to the force applied F = ma. More massive obje ...
the solar system
... up of a star and everything that travels around it from planets, their satellites and dwarf planets. Also includes asteroids, comets, and meteroids. Sun exerts a gravitational pull on all the bodies within the system. Our solar system is located in the Orion arm of the milky way galaxy. ...
... up of a star and everything that travels around it from planets, their satellites and dwarf planets. Also includes asteroids, comets, and meteroids. Sun exerts a gravitational pull on all the bodies within the system. Our solar system is located in the Orion arm of the milky way galaxy. ...
PTYS/ASTR 206 – Section 2 – Spring 2006 Practice Exam 1 Note
... C. accurately model how the phases of Venus change D. are an artificial construct invented by Ptolemy ...
... C. accurately model how the phases of Venus change D. are an artificial construct invented by Ptolemy ...
w 2012-01-13 Stellar Life Cycle
... Planetary nebulae are shells of gas thrown out by some stars near the end of their lives. Our Sun will probably produce a planetary nebula in about 5 billion years. They have nothing at all to do with planets; the terminology was invented because they often look a little like planets in small telesc ...
... Planetary nebulae are shells of gas thrown out by some stars near the end of their lives. Our Sun will probably produce a planetary nebula in about 5 billion years. They have nothing at all to do with planets; the terminology was invented because they often look a little like planets in small telesc ...
File - greenscapes4you
... M-Sun star has 30 times more H than the Sun, but burns it with a luminosity that is 30,000 times greater. It’s lifetime is 30/30,000 = 1/10,000 as long as the Sun – corresponding to a lifetime of only a few million years. This is a very short time, cosmically speaking. This is one reason why massive ...
... M-Sun star has 30 times more H than the Sun, but burns it with a luminosity that is 30,000 times greater. It’s lifetime is 30/30,000 = 1/10,000 as long as the Sun – corresponding to a lifetime of only a few million years. This is a very short time, cosmically speaking. This is one reason why massive ...
13 The Family of Stars
... a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. The darkened curve is called the main sequence because this is where most stars are. The white dwarf region is also indicated; these stars are hot but not very luminous because they are qu ...
... a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. The darkened curve is called the main sequence because this is where most stars are. The white dwarf region is also indicated; these stars are hot but not very luminous because they are qu ...
Starry Night¨ Times - October 2008
... a fine open cluster lying about 2,000 lightyears from the back of your eyeball. It has about 25 bright stars spattered across a field about the size of a full moon; in reality, they're spread over an area 20 lightyears in width. Bright enough to be sometimes visible to the naked eye (Aristotle is sa ...
... a fine open cluster lying about 2,000 lightyears from the back of your eyeball. It has about 25 bright stars spattered across a field about the size of a full moon; in reality, they're spread over an area 20 lightyears in width. Bright enough to be sometimes visible to the naked eye (Aristotle is sa ...
Ages of Star Clusters - Indiana University Astronomy
... Estimating the Ages of Star Clusters Massive stars burn their nuclear fuel faster than lower mass stars and leave the main sequence sooner. In a cluster in which all the stars formed at the same time, the stars “peel off” the main sequence from the top, leaving only progressively less and less mass ...
... Estimating the Ages of Star Clusters Massive stars burn their nuclear fuel faster than lower mass stars and leave the main sequence sooner. In a cluster in which all the stars formed at the same time, the stars “peel off” the main sequence from the top, leaving only progressively less and less mass ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.