Life on the Main Sequence + Expansion to Red Giant
... Expansion into a Red Giant When the hydrogen in the core is completely converted into He: ...
... Expansion into a Red Giant When the hydrogen in the core is completely converted into He: ...
Packet 3
... 12. How come when you go outside on an October night you see different stars than on an April night? 13. The Earth moves in 2 different ways thus the, 2 apparent motions of stars are caused by the earth’s R________________________ & R_________________________. 15. Describe blue shift: 14. The 3 actu ...
... 12. How come when you go outside on an October night you see different stars than on an April night? 13. The Earth moves in 2 different ways thus the, 2 apparent motions of stars are caused by the earth’s R________________________ & R_________________________. 15. Describe blue shift: 14. The 3 actu ...
The Sky
... – The brightest were called first-magnitude stars and those that were fainter, second-magnitude. The scale continued downward to sixth-magnitude stars, the faintest visible to the human eye. – Thus, the larger the magnitude number, the fainter the star. This makes sense if you think of the bright st ...
... – The brightest were called first-magnitude stars and those that were fainter, second-magnitude. The scale continued downward to sixth-magnitude stars, the faintest visible to the human eye. – Thus, the larger the magnitude number, the fainter the star. This makes sense if you think of the bright st ...
Chapter 34: Cosmology FYI 1. Radar Ranging 2. Triangulation idea
... P4: Consider light observed on earth that was emitted by atoms moving with stars or galaxies. Which statements are true? a. You can actually see little red atoms that have been shifted to the left. They have small beady red eyes and cannot be trusted. b. The spectral colors emitted by the atoms movi ...
... P4: Consider light observed on earth that was emitted by atoms moving with stars or galaxies. Which statements are true? a. You can actually see little red atoms that have been shifted to the left. They have small beady red eyes and cannot be trusted. b. The spectral colors emitted by the atoms movi ...
The Sun Compared to Other Stars
... hydrogen & helium fusion shells & a degenerate carbon core End results → outer layers drift away (planetary nebula), leaving a naked core (white dwarf) ...
... hydrogen & helium fusion shells & a degenerate carbon core End results → outer layers drift away (planetary nebula), leaving a naked core (white dwarf) ...
RR animation
... with a mass of around half the Sun's. They are thought to have previously shed mass and consequently, they were once stars with similar or slightly less mass than the Sun, around 0.8 solar masses. RR Lyrae stars pulse in a manner similar to Cepheid variables, so the mechanism for the pulsation is th ...
... with a mass of around half the Sun's. They are thought to have previously shed mass and consequently, they were once stars with similar or slightly less mass than the Sun, around 0.8 solar masses. RR Lyrae stars pulse in a manner similar to Cepheid variables, so the mechanism for the pulsation is th ...
Basic Properties of the Stars
... Henderson and Struve were lucky. Two of the brightest stars in the sky (α Cen and Vega) gave measurable parallaxes. Why did Bessel choose to work on a much fainter star? (Actually, 61 Cyg is a double star system made of a star of apparent magnitude 5.2 and another of magnitude 6.1.) It was beca ...
... Henderson and Struve were lucky. Two of the brightest stars in the sky (α Cen and Vega) gave measurable parallaxes. Why did Bessel choose to work on a much fainter star? (Actually, 61 Cyg is a double star system made of a star of apparent magnitude 5.2 and another of magnitude 6.1.) It was beca ...
starway of heaven - Conscious Evolution
... Mrigashira is a soft, gentle constellation, represented by the deer's head. The ruling deity of this constellation is Som, the divine nectar. Som is often treated as nothing but a plant whose leaves, when squeezed, yield a mildly intoxicating drink. But the Vedas themselves proclaim "The ignorant th ...
... Mrigashira is a soft, gentle constellation, represented by the deer's head. The ruling deity of this constellation is Som, the divine nectar. Som is often treated as nothing but a plant whose leaves, when squeezed, yield a mildly intoxicating drink. But the Vedas themselves proclaim "The ignorant th ...
Deep Space Mystery Note Form 3
... They are finding supernovae that never had been recorded. Cassiopeia A was found from light echoes off nebulae. Supernovae are reported to International Astronomical Union's Central Bureau for Astronomical Telegrams.. Name = year of discovery followed by a one or two letter designation. Fi ...
... They are finding supernovae that never had been recorded. Cassiopeia A was found from light echoes off nebulae. Supernovae are reported to International Astronomical Union's Central Bureau for Astronomical Telegrams.. Name = year of discovery followed by a one or two letter designation. Fi ...
Today`s Powerpoint
... - billions of years old Clusters are crucial for stellar evolution studies because: 1) All stars in a cluster formed at about same time (so all have same age) 2) All stars are at about the same distance 3) All stars have same chemical composition ...
... - billions of years old Clusters are crucial for stellar evolution studies because: 1) All stars in a cluster formed at about same time (so all have same age) 2) All stars are at about the same distance 3) All stars have same chemical composition ...
Astronomy 103
... Bavaria developed the spectroscope in the early 1800's. Wollaston was the first to see dark lines in the spectrum of the Sun and by 1863, it was known that these dark lines were identical to patterns of spectral lines from particular elements found on the Earth. (One set of lines failed to match the ...
... Bavaria developed the spectroscope in the early 1800's. Wollaston was the first to see dark lines in the spectrum of the Sun and by 1863, it was known that these dark lines were identical to patterns of spectral lines from particular elements found on the Earth. (One set of lines failed to match the ...
The Life of a Star
... o Eventually, only about 20% of the star's initial mass remains The star then cools and shrinks until it is only a few thousand miles in diameter = white dwarf o White dwarfs are stable because the inward pull of gravity is balanced by the electrons in the core of the star repulsing each other. ...
... o Eventually, only about 20% of the star's initial mass remains The star then cools and shrinks until it is only a few thousand miles in diameter = white dwarf o White dwarfs are stable because the inward pull of gravity is balanced by the electrons in the core of the star repulsing each other. ...
Galileo & the Telescope— Sept 20
... stars, but especially about the four planets flying around the star of Jupiter at unequal intervals and periods with wonderful swiftness; which unknown by anyone until this day, the first author detected recently and decided to name Midicean Stars. Venice ...
... stars, but especially about the four planets flying around the star of Jupiter at unequal intervals and periods with wonderful swiftness; which unknown by anyone until this day, the first author detected recently and decided to name Midicean Stars. Venice ...
Be Stars
... Stars are formed by a process in which gas clouds, condense and collapse in on them selves because of gravity. Building up pressure causes a rise in temperature in the developing star. Nuclear fusion begins if the core´s temperature gets to about 14 000 000 degrees Kelvin. ...
... Stars are formed by a process in which gas clouds, condense and collapse in on them selves because of gravity. Building up pressure causes a rise in temperature in the developing star. Nuclear fusion begins if the core´s temperature gets to about 14 000 000 degrees Kelvin. ...
AST 207 Homework 7 Due 4 November 2011
... c. (3 pts.) You ask the student to write an essay on how the platinum nucleus got from that environment into the nose ring. What are essential elements of the essay? 2. Mizar, the first binary star discovered from the spectrum. Even though Mizar appears to be a single star, Pickering’s spectrum show ...
... c. (3 pts.) You ask the student to write an essay on how the platinum nucleus got from that environment into the nose ring. What are essential elements of the essay? 2. Mizar, the first binary star discovered from the spectrum. Even though Mizar appears to be a single star, Pickering’s spectrum show ...
2017 MIT Invitational
... As a snapshot target, one frame was taken in each of two filters – F555W (dataset j8ne55z9q) and F814W (dataset j8ne55zeq). Exposure durations were 300s and 200s, respectively. The ACS WFC consists of two 2048 × 4096 pixel CCDs separated by a gap ≈ 50 pixels wide. The plate scale is 0.05 arcsec per ...
... As a snapshot target, one frame was taken in each of two filters – F555W (dataset j8ne55z9q) and F814W (dataset j8ne55zeq). Exposure durations were 300s and 200s, respectively. The ACS WFC consists of two 2048 × 4096 pixel CCDs separated by a gap ≈ 50 pixels wide. The plate scale is 0.05 arcsec per ...
Characterizing Stars - Department of Physics and Astronomy
... By carefully examining a star’s spectral lines, astronomers can determine whether that star is a main-sequence star, giant, supergiant, or white dwarf ...
... By carefully examining a star’s spectral lines, astronomers can determine whether that star is a main-sequence star, giant, supergiant, or white dwarf ...
The HR Diagram - Faculty Web Pages
... nearest stars in the sky. Some of these names should be familiar to you, as stars you may have seen in the sky personally. Many of these names, however, will be unfamiliar. The reason for this will become clear. We need to fill in the Spectral Type for each star. To do this, we'll need to search for ...
... nearest stars in the sky. Some of these names should be familiar to you, as stars you may have seen in the sky personally. Many of these names, however, will be unfamiliar. The reason for this will become clear. We need to fill in the Spectral Type for each star. To do this, we'll need to search for ...
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.