Chapter 1 slides
... apparent path through the stars Known also as the 12 signs of the Zodiac Zodiac is Greek for “circle of animals” Origin of the longitude on the celestial sphere is the ...
... apparent path through the stars Known also as the 12 signs of the Zodiac Zodiac is Greek for “circle of animals” Origin of the longitude on the celestial sphere is the ...
Quiz 1 Review
... 21. What is a supernova? List 2 reasons why supernovas are important. When fusion is no longer going on in a star’s core it collapses colliding with the core. This is one of the most energetic events in the universe. More energy is emitted during the supernova than the star emitted its entire life. ...
... 21. What is a supernova? List 2 reasons why supernovas are important. When fusion is no longer going on in a star’s core it collapses colliding with the core. This is one of the most energetic events in the universe. More energy is emitted during the supernova than the star emitted its entire life. ...
Reading the Stars
... 1. Examine color-magnitude diagrams of clusters of stars. Since a cluster of stars is a group of stars that were formed at the same time from the same cloud of gas and dust, we can learn a lot about the stars within that cluster. A color-magnitude diagram is a kind of H-R Diagram. The horizontal axi ...
... 1. Examine color-magnitude diagrams of clusters of stars. Since a cluster of stars is a group of stars that were formed at the same time from the same cloud of gas and dust, we can learn a lot about the stars within that cluster. A color-magnitude diagram is a kind of H-R Diagram. The horizontal axi ...
life
... How Best to do it? •Best chemical rockets: 10-4c – 10-3c •Millenia to nearest star •Nuclear rockets, solar sails, ion engines •10-2c – 10-1c •Decades – centuries to nearest star •Solutions: •Unmanned missions •Generation ships – parents have children •Long life span/hibernation ...
... How Best to do it? •Best chemical rockets: 10-4c – 10-3c •Millenia to nearest star •Nuclear rockets, solar sails, ion engines •10-2c – 10-1c •Decades – centuries to nearest star •Solutions: •Unmanned missions •Generation ships – parents have children •Long life span/hibernation ...
fred`s 2017 astronomy challenge
... for the amateur. More experienced members will be asked to help others in difficulty locating it. Although predicted to be one of the brighter comets of 2017, it is still too dim to see ...
... for the amateur. More experienced members will be asked to help others in difficulty locating it. Although predicted to be one of the brighter comets of 2017, it is still too dim to see ...
4. How can we select stars whose planets are likely homes for life?
... Therefore, the time it would take to travel to the nearest star, Proxima Centuri, which is about 4 ly away would take more than 4 years. In fact, the actual travel time will be much larger. Even if we could travel at the incredible speed of 3,000 km/sec, it would take 400 years to reach the nearest ...
... Therefore, the time it would take to travel to the nearest star, Proxima Centuri, which is about 4 ly away would take more than 4 years. In fact, the actual travel time will be much larger. Even if we could travel at the incredible speed of 3,000 km/sec, it would take 400 years to reach the nearest ...
annie jump cannon
... brightness changes of these stars can range from a thousandth of a magnitude to as much as twenty magnitudes over periods of a fraction of a second to years, depending on the type of variable star.” ...
... brightness changes of these stars can range from a thousandth of a magnitude to as much as twenty magnitudes over periods of a fraction of a second to years, depending on the type of variable star.” ...
review
... a black hole, what would you measure as his heartbeat (apart from effects caused by his adrenaline level)? • A. It would appear to be normal because gravity has no effect on time intervals. • B. It would appear to have slowed down somewhat, but not much, because of the change of the speed of light i ...
... a black hole, what would you measure as his heartbeat (apart from effects caused by his adrenaline level)? • A. It would appear to be normal because gravity has no effect on time intervals. • B. It would appear to have slowed down somewhat, but not much, because of the change of the speed of light i ...
Stellarium Astronomy Software
... A comet is basically a big rock, made of ice and dust, that orbits the sun in a wide, elliptical path. Most comets take many years to complete a full orbit. One of the most famous, comet Halley, visits the inner solar system once every 76 years. Comets are smaller than planets. Some are relatively s ...
... A comet is basically a big rock, made of ice and dust, that orbits the sun in a wide, elliptical path. Most comets take many years to complete a full orbit. One of the most famous, comet Halley, visits the inner solar system once every 76 years. Comets are smaller than planets. Some are relatively s ...
Lecture16
... There are billions of stars in the galaxy. Stars differ in mass (from 10% of the sun’s mass, to 150× the sun’s mass). ...and radius (from the size of earth to the size of jupiter’s orbit!). ...and color (from deep red, to blue). ... but otherwise, stars are almost ...
... There are billions of stars in the galaxy. Stars differ in mass (from 10% of the sun’s mass, to 150× the sun’s mass). ...and radius (from the size of earth to the size of jupiter’s orbit!). ...and color (from deep red, to blue). ... but otherwise, stars are almost ...
Lecture 11, PPT version
... the “zero velocity” line pattern. The curved magenta line above shows you how one particular black absorption line sweeps up and down the spectrum due to orbital motion. ...
... the “zero velocity” line pattern. The curved magenta line above shows you how one particular black absorption line sweeps up and down the spectrum due to orbital motion. ...
January-February-March - WVU Planetarium
... If you were to look in the contents of the Royal Astronomical Society of Canada’s excellent annual publication “Observer’s Handbook” for their Table of the Brightest Stars, you would find Rigel’s (the second brightest star in Orion after Betelgeuse) MK type as B8 Ia. Looking at the Spectral Type Tab ...
... If you were to look in the contents of the Royal Astronomical Society of Canada’s excellent annual publication “Observer’s Handbook” for their Table of the Brightest Stars, you would find Rigel’s (the second brightest star in Orion after Betelgeuse) MK type as B8 Ia. Looking at the Spectral Type Tab ...
Supernovae - Michigan State University
... Electron degeneracy pressure can prevent gravitational collapse In more massive cores electrons become relativistic and gravitational collapse occurs (then p~n4/3 instead of p~n5/3). For N=Z MCh=1.46 M0 ...
... Electron degeneracy pressure can prevent gravitational collapse In more massive cores electrons become relativistic and gravitational collapse occurs (then p~n4/3 instead of p~n5/3). For N=Z MCh=1.46 M0 ...
Star Evolution
... Enriches Interstellar Medium • New stars made from old stars • New stars have more carbon, nitrogen, oxygen • You are made of star dust ...
... Enriches Interstellar Medium • New stars made from old stars • New stars have more carbon, nitrogen, oxygen • You are made of star dust ...
Assignment 1 - utoledo.edu
... d. the tilt of the Earth's axis e. the temperature at midnight ____ 32. Someone who observes the sky every clear night in Boston for many years will NEVER get to see: a. the south circumpolar zone b. the north celestial pole c. the observer's zenith point d. the north circumpolar zone e. the Big Dip ...
... d. the tilt of the Earth's axis e. the temperature at midnight ____ 32. Someone who observes the sky every clear night in Boston for many years will NEVER get to see: a. the south circumpolar zone b. the north celestial pole c. the observer's zenith point d. the north circumpolar zone e. the Big Dip ...
Dynamite Diameters
... Dynamite Diameters Observations of main sequence stars with long baseline optical/infrared interferometry ...
... Dynamite Diameters Observations of main sequence stars with long baseline optical/infrared interferometry ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.