Stella Finger Prints
... information from the universe, let’s look at stars by themselves. All stars start out in a specific place, called a nebula (plural is nebulae). Nebulae are large areas of gas and dust where stars are born and sometimes die. They are mainly made up of hydrogen, helium, and other gases and dust. These ...
... information from the universe, let’s look at stars by themselves. All stars start out in a specific place, called a nebula (plural is nebulae). Nebulae are large areas of gas and dust where stars are born and sometimes die. They are mainly made up of hydrogen, helium, and other gases and dust. These ...
Astronomy Activity: The Life-Line of the Stars
... The brightness that a star has as seen from the Earth is called the apparent brightness . Stars which are very bright are called magnitude 1 stars . The next brightest are magnitude 2 stars. Then comes magnitude 3, 4, 5, and down to the very faintest stars visible with the naked eye, magnitude 6 sta ...
... The brightness that a star has as seen from the Earth is called the apparent brightness . Stars which are very bright are called magnitude 1 stars . The next brightest are magnitude 2 stars. Then comes magnitude 3, 4, 5, and down to the very faintest stars visible with the naked eye, magnitude 6 sta ...
26.4 Groups of Stars
... star systems, star clusters, dust, and gas bound together by gravity. • There are billions of galaxies in the universe. • The largest galaxies consist of more than a trillion stars. Galaxies vary widely in size and ...
... star systems, star clusters, dust, and gas bound together by gravity. • There are billions of galaxies in the universe. • The largest galaxies consist of more than a trillion stars. Galaxies vary widely in size and ...
Sama (Sky) | Questions on Islam
... If the heavens had been pre-eternal together with what are in them, throughout the endless time so far, they would already have been scattered and faded away. Since they still do exist today, they have been created at a later time, they have a beginning and one day they will shrink, disperse and fad ...
... If the heavens had been pre-eternal together with what are in them, throughout the endless time so far, they would already have been scattered and faded away. Since they still do exist today, they have been created at a later time, they have a beginning and one day they will shrink, disperse and fad ...
Chapter 12
... – All stars are moving and that those near the Sun share approximately the same direction and speed of revolution (about 200 km/sec) around the center of our galaxy – Superimposed on this orbital motion are small random motions of about 20 km/sec – In addition to their motion through space, stars sp ...
... – All stars are moving and that those near the Sun share approximately the same direction and speed of revolution (about 200 km/sec) around the center of our galaxy – Superimposed on this orbital motion are small random motions of about 20 km/sec – In addition to their motion through space, stars sp ...
galaxies and stars
... 44. Which process was occurring during some of these stages that resulted in the formation of heavier elements from lighter elements? A conduction C radioactive decay ...
... 44. Which process was occurring during some of these stages that resulted in the formation of heavier elements from lighter elements? A conduction C radioactive decay ...
The Formation of Stars and Solar Systems
... • The atoms are so far apart that, if an atom were an average- size person, each person would be separated by about 465 million miles, which is the distance between our Sun and Jupiter. • These atoms are moving very fast because they are extremely hot, baked by ultraviolet radiation from stars. This ...
... • The atoms are so far apart that, if an atom were an average- size person, each person would be separated by about 465 million miles, which is the distance between our Sun and Jupiter. • These atoms are moving very fast because they are extremely hot, baked by ultraviolet radiation from stars. This ...
CS3_Ch 3 - Leon County Schools
... • When a star’s hydrogen supply is nearly gone, the star leaves the main sequence and begins the next stage of its life cycle. • All stars form in the same way, but stars die in different ways, depending on their masses. ...
... • When a star’s hydrogen supply is nearly gone, the star leaves the main sequence and begins the next stage of its life cycle. • All stars form in the same way, but stars die in different ways, depending on their masses. ...
Low Mass
... Formation of Planetary Nebula • Double-shell burning causes strong stellar winds, star expels all of its outer layers • Expelled material, rich in heavy elements such as carbon and silicon, forms planetary nebula. • ~60% of mass is lost in planetary nebula • The process of expelling material and for ...
... Formation of Planetary Nebula • Double-shell burning causes strong stellar winds, star expels all of its outer layers • Expelled material, rich in heavy elements such as carbon and silicon, forms planetary nebula. • ~60% of mass is lost in planetary nebula • The process of expelling material and for ...
Chapter 19. Mapping the Universe from Herschel to Sloan
... a rather nearby cluster of stars, within the boundaries of the Milky Way Galaxy or whether they were supergiants in a distant stellar system. If distant, then the size of these systems of stars would rival or exceed the size of our own galaxy! The key to getting the distance to these systems came fr ...
... a rather nearby cluster of stars, within the boundaries of the Milky Way Galaxy or whether they were supergiants in a distant stellar system. If distant, then the size of these systems of stars would rival or exceed the size of our own galaxy! The key to getting the distance to these systems came fr ...
Chapter 14 The Milky Way Galaxy
... galaxy would have to be outside the visible part to reproduce the observed curve. ...
... galaxy would have to be outside the visible part to reproduce the observed curve. ...
Stars Of Orion Essay Research Paper 01
... formed. It gives us the ability to compare different types of stars and most importantly, it’s right next door to Earth, astronomically speaking. The interest in Orion is currently at frenzy level, astronomers have always been interested in Orion because it is only 450 parsecs (1500 light years) fro ...
... formed. It gives us the ability to compare different types of stars and most importantly, it’s right next door to Earth, astronomically speaking. The interest in Orion is currently at frenzy level, astronomers have always been interested in Orion because it is only 450 parsecs (1500 light years) fro ...
Chapter 3 Cosmology 3.1 The Doppler effect
... Edwin Hubble was able to identify Cepheid variable stars in Andromeda. These stars vary in brightness with a period of the order of days and are named after the first one to be discovered, -Cephei, the fourth brightest star in the constellation Cepheus. Their significance is that the period depends ...
... Edwin Hubble was able to identify Cepheid variable stars in Andromeda. These stars vary in brightness with a period of the order of days and are named after the first one to be discovered, -Cephei, the fourth brightest star in the constellation Cepheus. Their significance is that the period depends ...
Lecture 10-11 - OSU Astronomy
... new digital infrared surveys. L stars: • Temperatures ~1300-2500K • Strong lines of metal hydrides & neutral metals. ...
... new digital infrared surveys. L stars: • Temperatures ~1300-2500K • Strong lines of metal hydrides & neutral metals. ...
Slides from Dr. Frank`s Lecture17
... 1) The binary separation decreases because of gravitational radiation and other angular momentum losses. 2) The component stars will evolve and change size (for example becoming a red giant) Conclusion: Long period (wide) binaries may never become interacting while short period (close) binaries are ...
... 1) The binary separation decreases because of gravitational radiation and other angular momentum losses. 2) The component stars will evolve and change size (for example becoming a red giant) Conclusion: Long period (wide) binaries may never become interacting while short period (close) binaries are ...
February 2013 - astronomy for beginners
... look much the same although some are obviously brighter than others. Their brightness depends on two obvious factors. Some stars are actually brighter than others but in many cases their different distances from us just makes some look brighter than others. Stars that are closer to us will obviously ...
... look much the same although some are obviously brighter than others. Their brightness depends on two obvious factors. Some stars are actually brighter than others but in many cases their different distances from us just makes some look brighter than others. Stars that are closer to us will obviously ...
Today`s Powerpoint
... Remember, takes energetic UV photons to ionize H. Hot, massive stars produce huge amounts of these. Such short-lived stars spend all their lives in the stellar nursery of their birth, so emission nebulae mark sites of ongoing star formation. Many stars of lower mass are forming too, but make few UV ...
... Remember, takes energetic UV photons to ionize H. Hot, massive stars produce huge amounts of these. Such short-lived stars spend all their lives in the stellar nursery of their birth, so emission nebulae mark sites of ongoing star formation. Many stars of lower mass are forming too, but make few UV ...
EarthComm_c1s9
... some astronomers think that a supernova some five billion years ago may have started the development of the Sun and the planets. The Creation of Elements Through Stellar Processes As you read, nuclear fusion in a star begins in its core. The size of the core depends on the mass of the star. In a sta ...
... some astronomers think that a supernova some five billion years ago may have started the development of the Sun and the planets. The Creation of Elements Through Stellar Processes As you read, nuclear fusion in a star begins in its core. The size of the core depends on the mass of the star. In a sta ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.