Jeopardy - University of Nebraska–Lincoln
... This coordinate gives an object’s east-west location on the Celestial Sphere and ranges from 0-360 degrees (with 0 degrees being the north point and increasing ...
... This coordinate gives an object’s east-west location on the Celestial Sphere and ranges from 0-360 degrees (with 0 degrees being the north point and increasing ...
Which has a hotter temperature, a red star or a blue star? How do
... temperature. Are yellow socks as hot as the sun? ...
... temperature. Are yellow socks as hot as the sun? ...
PHY299B Poster-Justin Hudson-v2
... luminosity of the target star and to graph the luminosity verses time. ...
... luminosity of the target star and to graph the luminosity verses time. ...
Notes: Astronomy and Groups of Stars
... Oval shaped, Extremely bright, Older stars No regular shape, Very low mass Made of gas and dust, Least common Looks like a wheel with arm extensions Most common type Arms consist of younger stars, gas/dust. - our galaxy -100’s of billions of stars - it takes 100,000 light years to travel across our ...
... Oval shaped, Extremely bright, Older stars No regular shape, Very low mass Made of gas and dust, Least common Looks like a wheel with arm extensions Most common type Arms consist of younger stars, gas/dust. - our galaxy -100’s of billions of stars - it takes 100,000 light years to travel across our ...
Lecture 22 - Star Formation from Molecular Clouds
... • We understand the physics of these processes (at least partially) • We believe the Sun formed like this. • What characteristic of the solar system can we see that is an indicator of the processes of contraction, jet formation, accretion disk formation, etc? ...
... • We understand the physics of these processes (at least partially) • We believe the Sun formed like this. • What characteristic of the solar system can we see that is an indicator of the processes of contraction, jet formation, accretion disk formation, etc? ...
The Life Cycle of Stars
... against their colour (hence effective temperature). Independently in 1913 the American astronomer Henry Norris Russell used spectral class against absolute magnitude. Their resultant plots showed that the relationship between temperature and luminosity of a star was not random but instead appeared t ...
... against their colour (hence effective temperature). Independently in 1913 the American astronomer Henry Norris Russell used spectral class against absolute magnitude. Their resultant plots showed that the relationship between temperature and luminosity of a star was not random but instead appeared t ...
g9u4c12part3
... expands into a red giant. slowly shrinking into a small, dim white dwarf. it cools into a black dwarf, a dense, dark body made up mostly of carbon and oxygen. ...
... expands into a red giant. slowly shrinking into a small, dim white dwarf. it cools into a black dwarf, a dense, dark body made up mostly of carbon and oxygen. ...
Slide 1
... •A star twinkles in the sky •A telescope can only make it brighter but not bigger because the star is too far away •A star has a high temperature ...
... •A star twinkles in the sky •A telescope can only make it brighter but not bigger because the star is too far away •A star has a high temperature ...
File
... • Using the earliest distance determinations from parallax, in 1911 Ejnar Hertzsprung (Danish) plotted the absolute magnitude of stars versus a color index for each star. • In 1913 Henry Norris Russell (U.S.) plotted the absolute magnitude versus the spectral type. • The results were the same, the H ...
... • Using the earliest distance determinations from parallax, in 1911 Ejnar Hertzsprung (Danish) plotted the absolute magnitude of stars versus a color index for each star. • In 1913 Henry Norris Russell (U.S.) plotted the absolute magnitude versus the spectral type. • The results were the same, the H ...
The Danger of Deadly Cosmic Explosions
... • Deadly from neutrinos within 30 light years. • Atmosphere, weather, ruined. • Major extinction. • Not much harm if further. • SN material in sediments. • 1 SN/100 years in our galaxy • Close 1 per 100million years. • Good news: our neighbor stars peaceful. • Bad news: when one does show signs of b ...
... • Deadly from neutrinos within 30 light years. • Atmosphere, weather, ruined. • Major extinction. • Not much harm if further. • SN material in sediments. • 1 SN/100 years in our galaxy • Close 1 per 100million years. • Good news: our neighbor stars peaceful. • Bad news: when one does show signs of b ...
The Lives of Stars
... • White dwarfs are only about the size of Earth, but they have about as much mass as the sun. • Since a white dwarf has the same mass as the sun but only one millionth the volume, it is one million times as dense as the sun. A spoonful of material from a white dwarf has as much mass as a large truc ...
... • White dwarfs are only about the size of Earth, but they have about as much mass as the sun. • Since a white dwarf has the same mass as the sun but only one millionth the volume, it is one million times as dense as the sun. A spoonful of material from a white dwarf has as much mass as a large truc ...
Stars_and_Galaxies
... stars in the night sky, commonly named after animals and characters in Greek mythology • Currently there are 88 that are named • If you look in the direction of north, there are constellations that appear to move in a circle around the north star, Polaris. These are circumpolar constellations. • The ...
... stars in the night sky, commonly named after animals and characters in Greek mythology • Currently there are 88 that are named • If you look in the direction of north, there are constellations that appear to move in a circle around the north star, Polaris. These are circumpolar constellations. • The ...
Stars Unit 1-2: Stars
... – The sun is a yellow star, so it’s actually on the cooler side of the color spectrum. ...
... – The sun is a yellow star, so it’s actually on the cooler side of the color spectrum. ...
Review Game
... 38) An object compacted to such a small size that light cannot escape from its gravitational field is called a: 39) The spherical surface of space which defines the "surface" of a black hole is the: 40) White dwarfs, like Sirius B, would be found to the ________ on the H-R diagram. 41) A red supergi ...
... 38) An object compacted to such a small size that light cannot escape from its gravitational field is called a: 39) The spherical surface of space which defines the "surface" of a black hole is the: 40) White dwarfs, like Sirius B, would be found to the ________ on the H-R diagram. 41) A red supergi ...
Part 2 Answer Key
... Star Clusters are multiple star systems bound together by the force of gravity. Star Clusters can be divided into two main groups. One group is called Globular Clusters. They contain many stars and gravity holds them tightly together. They swarm just outside the galaxy and form a halo or bulge. We k ...
... Star Clusters are multiple star systems bound together by the force of gravity. Star Clusters can be divided into two main groups. One group is called Globular Clusters. They contain many stars and gravity holds them tightly together. They swarm just outside the galaxy and form a halo or bulge. We k ...
User`s Guide to the Sky Notes
... Some stars may have been included in more than one constellations, when constellations sometimes overlapped. “Modern” astronomers have added 40 constellations as cultures have spread across the Earth, and separated overlapping constellations. In 1928, the International Astronomical Union (IAU) offic ...
... Some stars may have been included in more than one constellations, when constellations sometimes overlapped. “Modern” astronomers have added 40 constellations as cultures have spread across the Earth, and separated overlapping constellations. In 1928, the International Astronomical Union (IAU) offic ...
SSG Coordinators will be at the Cronan Ranch observing site at 6
... and look for a small (6’ x 4’) faint nebulous patch, the famous Crab Nebula. Messier 1, the Crab Nebula is a supernova remnant located about 6500 light years away. The Crab is the tattered remains of a supernova that exploded in 1054 A.D. The explosion was so bright that Chinese astronomers observed ...
... and look for a small (6’ x 4’) faint nebulous patch, the famous Crab Nebula. Messier 1, the Crab Nebula is a supernova remnant located about 6500 light years away. The Crab is the tattered remains of a supernova that exploded in 1054 A.D. The explosion was so bright that Chinese astronomers observed ...
Stars Notes
... Sirius is the brightest star in our sky. It is about 9 light-years away from Earth and has a magnitude of 1.4 ...
... Sirius is the brightest star in our sky. It is about 9 light-years away from Earth and has a magnitude of 1.4 ...
Stellar Brightness Apparent magnitude
... Stellar Brightness Apparent magnitude: brightness of a ...
... Stellar Brightness Apparent magnitude: brightness of a ...
Homework Problems for Quiz 1 – AY 5 – Spring 2013
... a) What are the relative distances of the two stars? Star A has twice the parallax angle so is at 1/2 the distance of Star B b) what are the relative brightnesses of the two stars? Based on their relative luminosities, Star A would be twice as bright as Star B at the same distance. But, Star A is 1/ ...
... a) What are the relative distances of the two stars? Star A has twice the parallax angle so is at 1/2 the distance of Star B b) what are the relative brightnesses of the two stars? Based on their relative luminosities, Star A would be twice as bright as Star B at the same distance. But, Star A is 1/ ...
Measuring Distances Beyond the Solar System The Characteristics
... The Luminosity of a star is measured by comparing it with the luminosity of the Sun, which is assigned a luminosity of 1. Sirius, the brightest star in the night sky found in the constellation of Canis Major, has a luminosity of 22. This means Sirius gives off 22 times more energy each second than ...
... The Luminosity of a star is measured by comparing it with the luminosity of the Sun, which is assigned a luminosity of 1. Sirius, the brightest star in the night sky found in the constellation of Canis Major, has a luminosity of 22. This means Sirius gives off 22 times more energy each second than ...
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.