Astro 1 & 100 Levine Homework Stars Name:____________________________
... 9. Which of the stars from the Star Table are main sequence stars? (2 points) ...
... 9. Which of the stars from the Star Table are main sequence stars? (2 points) ...
Stars
... It is about 2,100 times larger than the sun. It would fit about 9,261,000,000 suns in it. The smallest star known is the OGLE-TR-122B it is 12 solar radii. • That is about 167,ooo km (kilometers). ...
... It is about 2,100 times larger than the sun. It would fit about 9,261,000,000 suns in it. The smallest star known is the OGLE-TR-122B it is 12 solar radii. • That is about 167,ooo km (kilometers). ...
Space Science Unit
... • The largest stars, larger than the giant stars • Their diameters are 1,000 times that of our Sun • A star this size would extend past Mars from where our Sun is now if compared to our Sun’s current size • Due to their size, they are the shortest lived stars and die off quickly ...
... • The largest stars, larger than the giant stars • Their diameters are 1,000 times that of our Sun • A star this size would extend past Mars from where our Sun is now if compared to our Sun’s current size • Due to their size, they are the shortest lived stars and die off quickly ...
Document
... • If you know how luminous a star REALLY is and how bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are ...
... • If you know how luminous a star REALLY is and how bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are ...
Milky Way
... • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
... • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
THE HR DIAGRAM
... it is cool, and it is a giant because it has such a large radius. Similarly, a high mass blue or white main sequence star evolves into a yellow or orange supergiant. A red giant will undergo yet another phase of evolution where it sheds its outer layers leaving a very dense core of carbon. The outer ...
... it is cool, and it is a giant because it has such a large radius. Similarly, a high mass blue or white main sequence star evolves into a yellow or orange supergiant. A red giant will undergo yet another phase of evolution where it sheds its outer layers leaving a very dense core of carbon. The outer ...
Stars
... Life span of a star depends on its size and mass. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
... Life span of a star depends on its size and mass. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
FRIENDS OF THE PLANETARIUM NEWSLETTER April2002
... Well the first quarter of the year is now history and our favourite constellation (Orion) is only just with us being low in the evening western sky. Soon it will no longer with us until it appears in our dawn eastern sky in about three months time. Scorpio is now appearing in the southeastern part o ...
... Well the first quarter of the year is now history and our favourite constellation (Orion) is only just with us being low in the evening western sky. Soon it will no longer with us until it appears in our dawn eastern sky in about three months time. Scorpio is now appearing in the southeastern part o ...
Deep Space and Solar System
... • One light year is how far light travels in one year (based on distance NOT time) • We see all night stars as they were when the light we see left each star ...
... • One light year is how far light travels in one year (based on distance NOT time) • We see all night stars as they were when the light we see left each star ...
What is a Star?
... km/s – 1 light year = the distance a ray of light travels in 1 year. 9.5 trillion km. Horsehead Nebula is 1,500 light years away) ...
... km/s – 1 light year = the distance a ray of light travels in 1 year. 9.5 trillion km. Horsehead Nebula is 1,500 light years away) ...
Brightness + Magnitude of Stars
... A. Apparent or Relative Brightness-(cont.) *** As distance to Star Decreases brightness Increases (Inverse Relationship) *** As Luminosity of Star increases brightness Increases (Direct Relationship) B. Apparent Magnitude A number assigned to a celestial object that is a measure of its relative br ...
... A. Apparent or Relative Brightness-(cont.) *** As distance to Star Decreases brightness Increases (Inverse Relationship) *** As Luminosity of Star increases brightness Increases (Direct Relationship) B. Apparent Magnitude A number assigned to a celestial object that is a measure of its relative br ...
Cluster and Association Members
... are physically related groups of stars held together by mutual gravitational attraction. Therefore, they populate a limited region of space, which is typically much smaller than their distance from the Sun, so that the members are all approximately at the same distance. They are believed to originat ...
... are physically related groups of stars held together by mutual gravitational attraction. Therefore, they populate a limited region of space, which is typically much smaller than their distance from the Sun, so that the members are all approximately at the same distance. They are believed to originat ...
PH142 - Mohawk Valley Community College
... MA045 Basic Math Skills, or MA050 Introductory Mathematics This course covers these topics: the sun and other stars, multiple star systems, the Milky Way and other galaxies, nebulae, intergalactic material, cosmology and the evolution of stars, pulsars, and black holes. Laboratory sessions may be sc ...
... MA045 Basic Math Skills, or MA050 Introductory Mathematics This course covers these topics: the sun and other stars, multiple star systems, the Milky Way and other galaxies, nebulae, intergalactic material, cosmology and the evolution of stars, pulsars, and black holes. Laboratory sessions may be sc ...
TAURUS ZODIAC CONSTELLATION In Greek mythology, Taurus
... local spiral arm to which the Sun belongs. The belt contains bright stars in many constellations including (in order going more or less eastward) Cepheus, Lacerta, Perseus, Orion, Canis Major, Puppis, Vela, Carina, Crux, Centaurus, Lupus, and Scorpius The Milky Way also passes through most of these ...
... local spiral arm to which the Sun belongs. The belt contains bright stars in many constellations including (in order going more or less eastward) Cepheus, Lacerta, Perseus, Orion, Canis Major, Puppis, Vela, Carina, Crux, Centaurus, Lupus, and Scorpius The Milky Way also passes through most of these ...
Introduction to Stars ppt
... Supergiants are very large in addition to being very bright. Giants are somewhat smaller in radius and lower in luminosity, but still much brighter than main sequence stars of same spectral type. The hot, white, small radius stars near the lower left are called white dwarfs. Giants and Supergiants ...
... Supergiants are very large in addition to being very bright. Giants are somewhat smaller in radius and lower in luminosity, but still much brighter than main sequence stars of same spectral type. The hot, white, small radius stars near the lower left are called white dwarfs. Giants and Supergiants ...
8-3-Star_Classification STUDENT
... If you were inside Lanier Middle and had never been out of the building your entire life, would you be able to know what the school looked like from a ...
... If you were inside Lanier Middle and had never been out of the building your entire life, would you be able to know what the school looked like from a ...
H-R Diagram Student
... The Hertzsprung-Russell diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their______________ ______________, which is how bright stars appear to be if they were all the same distance away. Rather than speak of the brightne ...
... The Hertzsprung-Russell diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their______________ ______________, which is how bright stars appear to be if they were all the same distance away. Rather than speak of the brightne ...
PH109 Exploring the Universe, Test 3, Fall 2001 Please indicate the
... 32. About how old do astronomers think the sun is a) 10 billion years, b) 5 billion years, c) 10 million years, d) 5 millions years 33. A measurement of the parallax of a star allows us directly to determine the star's a) rotation rate, b) temperature, c) distance, d) age 34. The stars located in th ...
... 32. About how old do astronomers think the sun is a) 10 billion years, b) 5 billion years, c) 10 million years, d) 5 millions years 33. A measurement of the parallax of a star allows us directly to determine the star's a) rotation rate, b) temperature, c) distance, d) age 34. The stars located in th ...
SOLUTIONS ASTROPHYSICS – OPTION D 2015-17
... b) State and explain the change in the luminosity of the Sun that occurs between positions S and I. ...
... b) State and explain the change in the luminosity of the Sun that occurs between positions S and I. ...
- National Optical Astronomy Observatory
... To determine the magnitudes of the other cluster members, NGC1496-22 was used as a reference in both filters. Star 22 was chosen because its magnitude was known from the WEBDA site; however, the software should calculate the same magnitudes for the entire data set if any other reference star had be ...
... To determine the magnitudes of the other cluster members, NGC1496-22 was used as a reference in both filters. Star 22 was chosen because its magnitude was known from the WEBDA site; however, the software should calculate the same magnitudes for the entire data set if any other reference star had be ...
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.