Constellation, Star, and Deep Sky Object
... system with a white dwarf and a supergiant which loses its outer gas layers to the white dwarf. A second, less common occurrence is a binary system with two white dwarfs that merge, sending the mass over the threshold. Type II – When a massive star consumes all of its fusion material and ends up wit ...
... system with a white dwarf and a supergiant which loses its outer gas layers to the white dwarf. A second, less common occurrence is a binary system with two white dwarfs that merge, sending the mass over the threshold. Type II – When a massive star consumes all of its fusion material and ends up wit ...
Finding Your Way In The Sky
... • Many proper star names are Arabic • Catalog labels also used (Alpha Centauri) • Constellation names are Latin – Ancient groups from Near Eastern myths via Greeks – Numerous 17th-18th Century inventions • 89 Constellations – Fixed boundaries in sky – Every star is in one, and only one, constellatio ...
... • Many proper star names are Arabic • Catalog labels also used (Alpha Centauri) • Constellation names are Latin – Ancient groups from Near Eastern myths via Greeks – Numerous 17th-18th Century inventions • 89 Constellations – Fixed boundaries in sky – Every star is in one, and only one, constellatio ...
Life Cycle of a Star
... Red giant star that expands and cools once it loses all its hydrogen Center shrinks and atmosphere grows large and cools ...
... Red giant star that expands and cools once it loses all its hydrogen Center shrinks and atmosphere grows large and cools ...
Stars from Afar
... An HR diagram shows the two most important characteristics of stars, which are temperature and absolute magnitude (brightness) and/or luminosity. ...
... An HR diagram shows the two most important characteristics of stars, which are temperature and absolute magnitude (brightness) and/or luminosity. ...
Consider Average Stars
... Look to the western horizon, with the sun still up in the sky. Then move your cursor to the time display at the top left, and advance the minutes quickly by holding down the arrow key on your keyboard. This makes the sun set rapidly – and you can watch the stars come out! ...
... Look to the western horizon, with the sun still up in the sky. Then move your cursor to the time display at the top left, and advance the minutes quickly by holding down the arrow key on your keyboard. This makes the sun set rapidly – and you can watch the stars come out! ...
Document
... You know that Tan(Ø ) = d/D Today we have accurate parallaxes for about 10,000 stars. ...
... You know that Tan(Ø ) = d/D Today we have accurate parallaxes for about 10,000 stars. ...
Astronomy – Interpreting Main Sequence Star Data The
... Analyze the above data and answer the following questions: 1. How does the color of stars relate to their temperature? 2. How does the mass of stars relate to how long they live? 3.a) How would our sun be classified? b) How long is the life time of our sun? c) As our sun ages how will it change? 4. ...
... Analyze the above data and answer the following questions: 1. How does the color of stars relate to their temperature? 2. How does the mass of stars relate to how long they live? 3.a) How would our sun be classified? b) How long is the life time of our sun? c) As our sun ages how will it change? 4. ...
The HR Diagram
... • Where are stars most of their lives? • Where are they when they begin to die? • What are they after they use up their ...
... • Where are stars most of their lives? • Where are they when they begin to die? • What are they after they use up their ...
The Brightness of Stars
... Astronomers still labor under a more quantified version of this system One tragic consequence is that objects brighter than the brightest star have negative magnitudes! ...
... Astronomers still labor under a more quantified version of this system One tragic consequence is that objects brighter than the brightest star have negative magnitudes! ...
Variable and Binary Stars
... – Spectral type F2-A2, yellow or white giant – Population II (as one would expect in a globular cluster) ...
... – Spectral type F2-A2, yellow or white giant – Population II (as one would expect in a globular cluster) ...
Almach or Alberio
... that of our Sun (large enough to swallow the orbit of Venus) and a luminosity 2,000 times that of our daytime star. The dimmer blue star (known as Almach B,C, and D) is also actually a triple system of three white dwarf stars . The white dwarf stars together orbit the gold primary star at a distance ...
... that of our Sun (large enough to swallow the orbit of Venus) and a luminosity 2,000 times that of our daytime star. The dimmer blue star (known as Almach B,C, and D) is also actually a triple system of three white dwarf stars . The white dwarf stars together orbit the gold primary star at a distance ...
Solutions to problems
... besides H and He to have allowed for the formation of habitable worlds. B. The star should last long enough for life to take hold and evolve. C. For surface life, at least, the star should shine with steady light and should have a habitable zone in which such life could potentially arise. D. The sta ...
... besides H and He to have allowed for the formation of habitable worlds. B. The star should last long enough for life to take hold and evolve. C. For surface life, at least, the star should shine with steady light and should have a habitable zone in which such life could potentially arise. D. The sta ...
Cetus and Lepus
... NGC-936 Mag 11.0 barred spiral galaxy NGC-157 Mag 11.5 spiral galaxy JKCS 041 is a galaxy group with the distinction of being the farthest from Earth ever observed and is estimated to be 10.2 billion light years distant. ...
... NGC-936 Mag 11.0 barred spiral galaxy NGC-157 Mag 11.5 spiral galaxy JKCS 041 is a galaxy group with the distinction of being the farthest from Earth ever observed and is estimated to be 10.2 billion light years distant. ...
Stellar Magnitude, Distance, and Motion
... Actual star brightness The apparent magnitude that a star would have if it were (in our imagination) placed at a distance of 10 parsecs (which is 32.6 light years) from the Earth Used to describe luminosity - The amount of energy a star gives off each second The 20 Brightest Stars in the Sky C ...
... Actual star brightness The apparent magnitude that a star would have if it were (in our imagination) placed at a distance of 10 parsecs (which is 32.6 light years) from the Earth Used to describe luminosity - The amount of energy a star gives off each second The 20 Brightest Stars in the Sky C ...
The Life Cycle of a Star Webquest:
... The Birth of a Star: 1. What is a nebulae? ______________ _______________________________________________ 2. Put these steps in order. ______ The gas and dust compresses into a slowly rotating ball. ______ The gas ball begins to spin faster and cool. ______ A star begins to form from clouds of hydro ...
... The Birth of a Star: 1. What is a nebulae? ______________ _______________________________________________ 2. Put these steps in order. ______ The gas and dust compresses into a slowly rotating ball. ______ The gas ball begins to spin faster and cool. ______ A star begins to form from clouds of hydro ...
White Dwarfs - Astronomy - The University of Texas at Austin
... White dwarfs are the most common stellar “corpse.” Come from low mass stars → plentiful. Examples of planetary nebulae surrounding new-born white dwarfs ...
... White dwarfs are the most common stellar “corpse.” Come from low mass stars → plentiful. Examples of planetary nebulae surrounding new-born white dwarfs ...
When Stars Blow Up
... •The star increases in brightness ~ 10,000 times •Most of the matter is ejected ...
... •The star increases in brightness ~ 10,000 times •Most of the matter is ejected ...
Coursework 7 File
... Gravitational constant G = 6.67 × 10−11 N kg−2 m2 Solar mass Msun = 2 × 1030 kg Solar luminosity Lsun = 3.8 × 1026 W Solar radius Rsun = 7 × 108 m Jupiter radius RJup = 7 × 107 m 1 Astronomical unit 1.5 × 1011 m 1 parsec = 3.26 light years Speed of light c = 3 × 108 m s−1 Stefan-Boltzmann constant σ ...
... Gravitational constant G = 6.67 × 10−11 N kg−2 m2 Solar mass Msun = 2 × 1030 kg Solar luminosity Lsun = 3.8 × 1026 W Solar radius Rsun = 7 × 108 m Jupiter radius RJup = 7 × 107 m 1 Astronomical unit 1.5 × 1011 m 1 parsec = 3.26 light years Speed of light c = 3 × 108 m s−1 Stefan-Boltzmann constant σ ...
Stars, H-R and Life Cycle of Star
... the absolute magnitude (real brightness) of a star and its surface temperature. They plotted the data on a graph. ...
... the absolute magnitude (real brightness) of a star and its surface temperature. They plotted the data on a graph. ...
3.6 spectral classes
... Nearby stars appear to shift back and forth relative to more distant stars as Earth revolves around the Sun. The apparent change in a star’s position observed when the star is sighted from opposite sides of Earth’s orbit is called stellar parallax ...
... Nearby stars appear to shift back and forth relative to more distant stars as Earth revolves around the Sun. The apparent change in a star’s position observed when the star is sighted from opposite sides of Earth’s orbit is called stellar parallax ...
ASTRONOMY 130
... the ancients saw pictures in the sky. These constellations have names and a star may be identified as being in a certain constellation. Although the modern astronomer no longer employs these constellations as the ancients did for mythological or astrological purposes, he does use them for quick refe ...
... the ancients saw pictures in the sky. These constellations have names and a star may be identified as being in a certain constellation. Although the modern astronomer no longer employs these constellations as the ancients did for mythological or astrological purposes, he does use them for quick refe ...
Chapter 2: The Sky
... Stars are named by a Greek letter (a, b, g) according to their relative brightness within a given constellation + the possessive form of the name of the constellation: Betelgeuse = a Orionis, Rigel = b Orionis ...
... Stars are named by a Greek letter (a, b, g) according to their relative brightness within a given constellation + the possessive form of the name of the constellation: Betelgeuse = a Orionis, Rigel = b Orionis ...
Canis Minor
Canis Minor /ˌkeɪnɨs ˈmaɪnər/ is a small constellation in the northern celestial hemisphere. In the second century, it was included as an asterism, or pattern, of two stars in Ptolemy's 48 constellations, and it is counted among the 88 modern constellations. Its name is Latin for ""lesser dog"", in contrast to Canis Major, the ""greater dog""; both figures are commonly represented as following the constellation of Orion the hunter.Canis Minor contains only two stars brighter than the fourth magnitude, Procyon (Alpha Canis Minoris), with a magnitude of 0.34, and Gomeisa (Beta Canis Minoris), with a magnitude of 2.9. The constellation's dimmer stars were noted by Johann Bayer, who named eight stars including Alpha and Beta, and John Flamsteed, who numbered fourteen. Procyon is the seventh-brightest star in the night sky, as well as one of the closest. A yellow-white main sequence star, it has a white dwarf companion. Gomeisa is a blue-white main sequence star. Luyten's Star is a ninth-magnitude red dwarf and the Solar System's next closest stellar neighbour in the constellation after Procyon. The fourth-magnitude HD 66141, which has evolved into an orange giant towards the end of its life cycle, was discovered to have a planet in 2012. There are two faint deep sky objects within the constellation's borders. The 11 Canis-Minorids are a meteor shower that can be seen in early December.