REACH FOR THE STARS MLK 2009
... Approximately what % of all stars are found on the main sequence? __________ What bodies are involved in a Type I supernova? ____________________________________ What does a White Dwarf leave behind following a Type I supernova event? _______________________. How long does an O star live on the main ...
... Approximately what % of all stars are found on the main sequence? __________ What bodies are involved in a Type I supernova? ____________________________________ What does a White Dwarf leave behind following a Type I supernova event? _______________________. How long does an O star live on the main ...
Chapter 17 Measuring the Stars
... Once many stars are plotted on an H–R diagram, 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, as this is where most stars are. Also indicated is the white dwarf region; these stars are hot but ...
... Once many stars are plotted on an H–R diagram, 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, as this is where most stars are. Also indicated is the white dwarf region; these stars are hot but ...
HR Diagram of Messier 80 using Hubble Space Telescope Data
... 8. Optional: Download and reduce the data yourself If you want to create the data set below on your own, follow these directions below. Go to http://hla.stsci.edu/ Click “Enter Site.” Search for M80. Then do an “Advanced Search”. Check off only the WFPC2 instrument. Search for Proposal ID 11233. Two ...
... 8. Optional: Download and reduce the data yourself If you want to create the data set below on your own, follow these directions below. Go to http://hla.stsci.edu/ Click “Enter Site.” Search for M80. Then do an “Advanced Search”. Check off only the WFPC2 instrument. Search for Proposal ID 11233. Two ...
Test #4
... 1. The location of the center of the Galaxy is determined by observations of: a) Cepheids variables, b) Globular clusters, c) The spiral arms, d) A visually bright, massive, object around which all objects in the Galaxy move. 2. What two observations of an object allow for a determination of the Mil ...
... 1. The location of the center of the Galaxy is determined by observations of: a) Cepheids variables, b) Globular clusters, c) The spiral arms, d) A visually bright, massive, object around which all objects in the Galaxy move. 2. What two observations of an object allow for a determination of the Mil ...
ppt
... “star” in the galaxy and assume that it is the same as the brightest star in nearby galaxies. BUT, brightest object may not be a star at all! Overall galactic apparent brightness method – for distant galaxies, simply use overall brightness of galaxy to gauge distance. Very error prone! ...
... “star” in the galaxy and assume that it is the same as the brightest star in nearby galaxies. BUT, brightest object may not be a star at all! Overall galactic apparent brightness method – for distant galaxies, simply use overall brightness of galaxy to gauge distance. Very error prone! ...
Chapter 09 - The Independent School
... in astronomy is very difficult. To discover the properties of stars, astronomers must use their telescopes and spectrographs in ingenious ways to learn the secrets hidden in starlight. The result is a family portrait of the stars. Here you will find answers to five essential questions about stars: • ...
... in astronomy is very difficult. To discover the properties of stars, astronomers must use their telescopes and spectrographs in ingenious ways to learn the secrets hidden in starlight. The result is a family portrait of the stars. Here you will find answers to five essential questions about stars: • ...
Lives of stars HR
... mass of stars based on their position in the HR diagram Evolution of stars occurs as stars run out of fuel and this can be traced on the HR diagram HR diagrams of star clusters help us determine the age of the clusters. ...
... mass of stars based on their position in the HR diagram Evolution of stars occurs as stars run out of fuel and this can be traced on the HR diagram HR diagrams of star clusters help us determine the age of the clusters. ...
Lecture 13
... cores are no longer on the main sequence. • They may be fusing He to Carbon in their core or fusing H to He in shell outside the core … but there is no H to He fusion in the core. • All stars become larger and redder after exhausting their core hydrogen fuel: giants and supergiants. • Most stars end ...
... cores are no longer on the main sequence. • They may be fusing He to Carbon in their core or fusing H to He in shell outside the core … but there is no H to He fusion in the core. • All stars become larger and redder after exhausting their core hydrogen fuel: giants and supergiants. • Most stars end ...
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 ...
the printable Observing Olympics Object Info Sheet in pdf
... elliptical halo is the results of ram-pressure stripping as it plummets supersonically at 300 miles per second into the core of NGC5846. NGC5846A has a 1,850 light year long tail which contains 105 Solar Masses of gas. The time needed for AGB stars to produce this gas is ∿5.5 million years. NGC5846 ...
... elliptical halo is the results of ram-pressure stripping as it plummets supersonically at 300 miles per second into the core of NGC5846. NGC5846A has a 1,850 light year long tail which contains 105 Solar Masses of gas. The time needed for AGB stars to produce this gas is ∿5.5 million years. NGC5846 ...
General Introduction 1. Luminosity, Flux and Magnitude The
... mass in a violent wind leading to a planetary nebula, the core slowly cools into a white dwarf remnant composed largely of carbon and oxygen. Stellar evolution can be easily observed using the HR diagram. Clusters contain stars presumably formed at nearly the same time and all stars within the clust ...
... mass in a violent wind leading to a planetary nebula, the core slowly cools into a white dwarf remnant composed largely of carbon and oxygen. Stellar evolution can be easily observed using the HR diagram. Clusters contain stars presumably formed at nearly the same time and all stars within the clust ...
Celestial Distances - Wayne State University
... with each scale connecting to the next, like a ladder On the Earth, lengths are specified in precise units such as the meter Distances within the solar system are determined by timing how long it takes radar signals to travel from the Earth to a planet or other body and then return Beyond the solar ...
... with each scale connecting to the next, like a ladder On the Earth, lengths are specified in precise units such as the meter Distances within the solar system are determined by timing how long it takes radar signals to travel from the Earth to a planet or other body and then return Beyond the solar ...
thefixedstarsinnatal.. - Saptarishis Astrology
... The fixed stars operate by position and are said to "cast no rays," or in other words their aspects are said to be ineffective and their influence to be exerted only by conjunction and parallel. As in the case of the planets they are most powerful when in angles and weak when cadent, their effect b ...
... The fixed stars operate by position and are said to "cast no rays," or in other words their aspects are said to be ineffective and their influence to be exerted only by conjunction and parallel. As in the case of the planets they are most powerful when in angles and weak when cadent, their effect b ...
OUR COSMIC NEIGHBORS Story of the Stars
... This constellation is found directly across the Pole from Ursa Major. Both are circumpolar constellations, so when one is high in the sky, the other is low over the northern point. Cassiopeia is characterized by a zigzag row of second magnitude stars, forming an irregular “M” or “W” according to the ...
... This constellation is found directly across the Pole from Ursa Major. Both are circumpolar constellations, so when one is high in the sky, the other is low over the northern point. Cassiopeia is characterized by a zigzag row of second magnitude stars, forming an irregular “M” or “W” according to the ...
June - Magic Valley Astronomical Society
... 6/3 Saturn (angular size 18.4", magnitude 0.0) is at opposition at 7:00; Mercury is 0.73° north of the Moon, the Moon is at perigee, subtending 33' 5" from a distance of 361,140 kilometers (224,402 miles), at 10:56 6/4 The Moon is 8.8° south of the bright open cluster M45 (the Pleiades) at 3:00; Jup ...
... 6/3 Saturn (angular size 18.4", magnitude 0.0) is at opposition at 7:00; Mercury is 0.73° north of the Moon, the Moon is at perigee, subtending 33' 5" from a distance of 361,140 kilometers (224,402 miles), at 10:56 6/4 The Moon is 8.8° south of the bright open cluster M45 (the Pleiades) at 3:00; Jup ...
Allen - Star Names - creationapologetics.net
... the ecliptic into twelve equal zones of celestial longitude to create the first known celestial coordinate system: a coordinate system that boasts some advantages over modern systems (such as equatorial coordinate system or ecliptic coordinate system). The Babylonian calendar as it stood in the 7th ...
... the ecliptic into twelve equal zones of celestial longitude to create the first known celestial coordinate system: a coordinate system that boasts some advantages over modern systems (such as equatorial coordinate system or ecliptic coordinate system). The Babylonian calendar as it stood in the 7th ...
Basic Properties of Stars
... sense. According to the blackbody law, hot things emit more light. But a star’s brightness also depends on its size – the larger the area, the more square centimeters are emitting and the more light you get. The relationship between luminosity, radius, and temperature is ...
... sense. According to the blackbody law, hot things emit more light. But a star’s brightness also depends on its size – the larger the area, the more square centimeters are emitting and the more light you get. The relationship between luminosity, radius, and temperature is ...
Crux The Southern Cross
... Sometimes double stars may only appear close together from our vantage point on earth. If in reality they do not interact then we call this an optical double. It is possible, but rarer for 4 or 6 stars to be grouped into Computer simulation of Algol multiple star systems. In this case the stars are ...
... Sometimes double stars may only appear close together from our vantage point on earth. If in reality they do not interact then we call this an optical double. It is possible, but rarer for 4 or 6 stars to be grouped into Computer simulation of Algol multiple star systems. In this case the stars are ...
Pretty Pictures of the Cosmos
... distant galaxies form a dramatic backdrop for disrupted spiral galaxy Arp 188, the Tadpole Galaxy. The cosmic Tadpole is a mere 420 million light-years distant toward the northern constellation Draco. Its eye-catching tail is about 280 thousand light-years long and features massive, bright blue star ...
... distant galaxies form a dramatic backdrop for disrupted spiral galaxy Arp 188, the Tadpole Galaxy. The cosmic Tadpole is a mere 420 million light-years distant toward the northern constellation Draco. Its eye-catching tail is about 280 thousand light-years long and features massive, bright blue star ...
Lecture 10: The Milky Way
... We live in a galaxy that has three major components of different ages and metallicities. Disc (thin+thick) – about 25kpc in radius, only about 1kpc thick. Most of the stars are young (0-8 Gyr), and have about the same metal content as the Sun. Total stellar mass of about 6x1010M. Bulge – a mostly o ...
... We live in a galaxy that has three major components of different ages and metallicities. Disc (thin+thick) – about 25kpc in radius, only about 1kpc thick. Most of the stars are young (0-8 Gyr), and have about the same metal content as the Sun. Total stellar mass of about 6x1010M. Bulge – a mostly o ...
Can we detect asteroid impacts with rocky extrasolar planets?
... from our solar system seems daunting. However, that is not the end of the bad news. The fireball tends to mask itself so that not all of the light is emitted. This emissivity can drop to one percent or less depending on the characteristics of the impact. The good news is that Venus has a luminosity ...
... from our solar system seems daunting. However, that is not the end of the bad news. The fireball tends to mask itself so that not all of the light is emitted. This emissivity can drop to one percent or less depending on the characteristics of the impact. The good news is that Venus has a luminosity ...
Tutorial: Luminosity
... However, the “brightness” of a star decreases as one moves farther and farther away. If a sphere of radius d is drawn around the star, it should be clear that the energy/sec through the surface of this sphere is the same as the energy/sec emitted through the surface of the star, since there is no me ...
... However, the “brightness” of a star decreases as one moves farther and farther away. If a sphere of radius d is drawn around the star, it should be clear that the energy/sec through the surface of this sphere is the same as the energy/sec emitted through the surface of the star, since there is no me ...
five minute episode script
... have you seen the Big Dipper this summer? DEAN: I have. After all, it’s my favorite… constellation… JAMES: Dean is laughing because he knows darned well that the Big Dipper is not a constellation. DEAN: I know. I know. I just like messing with you James. The Big Dipper is only part of a larger const ...
... have you seen the Big Dipper this summer? DEAN: I have. After all, it’s my favorite… constellation… JAMES: Dean is laughing because he knows darned well that the Big Dipper is not a constellation. DEAN: I know. I know. I just like messing with you James. The Big Dipper is only part of a larger const ...
The Milky Way * A Classic Galaxy
... schmushed it all together into what is now the central bulge. • Then, more slowly, gas fell in from farther out, had angular momentum, and so settled into a flat disk, and only gradually is forming itself into stars. • Globular clusters formed during the proto-galaxy stage and during the time they c ...
... schmushed it all together into what is now the central bulge. • Then, more slowly, gas fell in from farther out, had angular momentum, and so settled into a flat disk, and only gradually is forming itself into stars. • Globular clusters formed during the proto-galaxy stage and during the time they c ...
Aries (constellation)
Aries is one of the constellations of the zodiac. It is located in the northern celestial hemisphere between Pisces to the west and Taurus to the east. The name Aries is Latin for ram, and its symbol is 20px (Unicode ♈), representing a ram's horns. It is one of the 48 constellations described by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. It is a mid-sized constellation, ranking 39th overall size, with an area of 441 square degrees (1.1% of the celestial sphere).Although Aries came to represent specifically the ram whose fleece became the Golden Fleece of Ancient Greek mythology, it has represented a ram since late Babylonian times. Before that, the stars of Aries formed a farmhand. Different cultures have incorporated the stars of Aries into different constellations including twin inspectors in China and a porpoise in the Marshall Islands. Aries is a relatively dim constellation, possessing only four bright stars: Hamal (Alpha Arietis, second magnitude), Sheratan (Beta Arietis, third magnitude), Mesarthim (Gamma Arietis, fourth magnitude), and 41 Arietis (also fourth magnitude). The few deep-sky objects within the constellation are quite faint and include several pairs of interacting galaxies. Several meteor showers appear to radiate from Aries, including the Daytime Arietids and the Epsilon Arietids.