giant molecular clouds
... Contains many massive, very young stars, including T Tauri Stars: strongly variable; bright in the infrared. ...
... Contains many massive, very young stars, including T Tauri Stars: strongly variable; bright in the infrared. ...
Some 250 years ago, the philosopher Immanuel Universal
... in this artist’s impression. The Kepler space telescope (left) could yield even more. ...
... in this artist’s impression. The Kepler space telescope (left) could yield even more. ...
Document
... determines how bright it appears to an observer Parallax – the apparent shift in the position of an object when viewed from different locations ...
... determines how bright it appears to an observer Parallax – the apparent shift in the position of an object when viewed from different locations ...
Chapter 21 notes - Clinton Public Schools
... spinning hundreds of times per second, sending pulsating radio waves: pulsars are short for pulsating radio waves. Black Holes: most massive starts, those having 40 times more mass than the sun may become black holes when they die. Black hole is an object with gravity so strong that nothing, not eve ...
... spinning hundreds of times per second, sending pulsating radio waves: pulsars are short for pulsating radio waves. Black Holes: most massive starts, those having 40 times more mass than the sun may become black holes when they die. Black hole is an object with gravity so strong that nothing, not eve ...
notes
... • We moved it to an O-type star (T = 30,000 K) and placed it at the same distance that it currently is from our Sun (T = 5800 K) • We moved it to an M-type star (T = 3000 K) and placed it at the same distance that it currently is from our Sun • In each of these cases, where should we place the Earth ...
... • We moved it to an O-type star (T = 30,000 K) and placed it at the same distance that it currently is from our Sun (T = 5800 K) • We moved it to an M-type star (T = 3000 K) and placed it at the same distance that it currently is from our Sun • In each of these cases, where should we place the Earth ...
Document
... years, the star runs out of hydrogen in its core. The core becomes unstable and contracts, while the outer shell starts to expand. ...
... years, the star runs out of hydrogen in its core. The core becomes unstable and contracts, while the outer shell starts to expand. ...
Black Hole
... It is a system of stars, dust, and gas held together by gravity. There are three basic types: spiral, elliptical, and irregular. A spiral galaxy is a flattened, discus-shaped collection of stars, having a central bulge. Examples include the Milky Way and Andromeda. An elliptical galaxy ranges in sha ...
... It is a system of stars, dust, and gas held together by gravity. There are three basic types: spiral, elliptical, and irregular. A spiral galaxy is a flattened, discus-shaped collection of stars, having a central bulge. Examples include the Milky Way and Andromeda. An elliptical galaxy ranges in sha ...
Today`s Powerpoint
... - Whole star pulsates more and more violently. - Eventually, shells thrown off star altogether! 0.1 - 0.2 MSun ejected. - Shells appear as a nebula around star, called "Planetary Nebula" (awful, historical name, nothing to do with planets). ...
... - Whole star pulsates more and more violently. - Eventually, shells thrown off star altogether! 0.1 - 0.2 MSun ejected. - Shells appear as a nebula around star, called "Planetary Nebula" (awful, historical name, nothing to do with planets). ...
Astronomy
... d. both b and c 15. In the HR diagram, stable stars with the smallest mass and lowest temperature are found in the ______ of the diagram. a. center (main sequence) b. upper left corner c. upper right corner d. lower right corner ...
... d. both b and c 15. In the HR diagram, stable stars with the smallest mass and lowest temperature are found in the ______ of the diagram. a. center (main sequence) b. upper left corner c. upper right corner d. lower right corner ...
STARS
... out of fuel. • When it “dies” it will become a white dwarf. • Our Sun is bigger than 95% of the stars in the Universe. • The Size Of Our World ...
... out of fuel. • When it “dies” it will become a white dwarf. • Our Sun is bigger than 95% of the stars in the Universe. • The Size Of Our World ...
Handout Life of Stars
... is formed when gravity causes the dust and gas of a nebula to clump together in a process called accretion. As gravity continues to pull ever more matter inward towards the core, its temperature, pressure and density increases. If a critical temperature in the core of a protostar is reached, then nu ...
... is formed when gravity causes the dust and gas of a nebula to clump together in a process called accretion. As gravity continues to pull ever more matter inward towards the core, its temperature, pressure and density increases. If a critical temperature in the core of a protostar is reached, then nu ...
Nuclear Interactions in Supernovae .
... • When the core of a sun like star contracts inward during death, some force keeps the white dwarf from collapsing into nothingness. ...
... • When the core of a sun like star contracts inward during death, some force keeps the white dwarf from collapsing into nothingness. ...
Online STUDY QUESTIONS #8 — ANSWERS 1. Mercury moves
... 1. Mercury moves fastest when it is closest to the sun and slowest when farthest from the sun. 2. P 2 = D3 ...
... 1. Mercury moves fastest when it is closest to the sun and slowest when farthest from the sun. 2. P 2 = D3 ...
The Sun Compared to Other Stars
... Supernova results from: → core bounce associated with collapse into a neutron star → release of neutrinos which blow off the outer envelope of the star (i.e, proton + electron → neutron + neutrino) ...
... Supernova results from: → core bounce associated with collapse into a neutron star → release of neutrinos which blow off the outer envelope of the star (i.e, proton + electron → neutron + neutrino) ...
Analyzing Spectra
... black lines are caused by elements in the star's atmosphere. As light emitted from a star passes through the star's atmosphere, some of it is absorbed by elements in the atmosphere. The wavelengths of the light that are absorbed appear as dark lines in the spectrum. Each element absorbs certain wave ...
... black lines are caused by elements in the star's atmosphere. As light emitted from a star passes through the star's atmosphere, some of it is absorbed by elements in the atmosphere. The wavelengths of the light that are absorbed appear as dark lines in the spectrum. Each element absorbs certain wave ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.