Good Vibrations and Stellar Pulsations - Physics
... and amateur astronomer) observed o Ceti, a 2nd magnitude star in the constellation Cetus. As it declined in brightness, the star vanished by October. Later it reappeared, and was renamed Mira (“the Wonderful”) By 1660 its 11-month period had been established. The light variations were believed to be ...
... and amateur astronomer) observed o Ceti, a 2nd magnitude star in the constellation Cetus. As it declined in brightness, the star vanished by October. Later it reappeared, and was renamed Mira (“the Wonderful”) By 1660 its 11-month period had been established. The light variations were believed to be ...
The Dead Guys a.k.a: The development of astronomy
... The Maya Believed that Earth was flat with 4 corners Portrayed ecliptic in art work Concluded year was slightly more than 365 days (Evidence of a calendar system) Observed Venus & Mercury when visible (observatories) Math – they created the number 0 Also created a writing system (hieroglyphics) Civ ...
... The Maya Believed that Earth was flat with 4 corners Portrayed ecliptic in art work Concluded year was slightly more than 365 days (Evidence of a calendar system) Observed Venus & Mercury when visible (observatories) Math – they created the number 0 Also created a writing system (hieroglyphics) Civ ...
stars-notes
... • When a chemical element emits light, only some colors in the spectrum show up. The colors that appear are called emission lines. • Every element has a unique set of emission lines that act like a fingerprint for that element. ...
... • When a chemical element emits light, only some colors in the spectrum show up. The colors that appear are called emission lines. • Every element has a unique set of emission lines that act like a fingerprint for that element. ...
29 Jan: Maps of the Sky
... Now think about what a person on the equator sees. How do the stars change as the night goes on. Where is the celestial equator on the sky? ...
... Now think about what a person on the equator sees. How do the stars change as the night goes on. Where is the celestial equator on the sky? ...
Slide 1
... HR diagram and the injection of enriched gas into the ISM. The recognition of clumped and/or porous radiation-driven winds has led to reduced mass loss rates from spectroscopic UV and optical data compared to inferences from past (limited) radio observations. To produce WR stars and neutron stars we ...
... HR diagram and the injection of enriched gas into the ISM. The recognition of clumped and/or porous radiation-driven winds has led to reduced mass loss rates from spectroscopic UV and optical data compared to inferences from past (limited) radio observations. To produce WR stars and neutron stars we ...
star
... Sirius B is a white dwarf companion The orbits are drawn to scale, but the sizes of the stars are exaggerated Sirius A is considerably larger than the Sun, while Sirius B is about the size of the Earth 28 July 2005 ...
... Sirius B is a white dwarf companion The orbits are drawn to scale, but the sizes of the stars are exaggerated Sirius A is considerably larger than the Sun, while Sirius B is about the size of the Earth 28 July 2005 ...
Document
... you do not have loose-leaf paper, kindly ask for one from some one.) 2. In a short paragraph, answer the following question from your text: “If the Earth rotated twice as quickly as it does now, what would be the difference in minutes between the solar and sidereal days? Explain how you got your ...
... you do not have loose-leaf paper, kindly ask for one from some one.) 2. In a short paragraph, answer the following question from your text: “If the Earth rotated twice as quickly as it does now, what would be the difference in minutes between the solar and sidereal days? Explain how you got your ...
Sources of Gravitational Waves Peter Shawhan
... Orbit will continue to decay (inspiral) over the next ~300 million years, until… ...
... Orbit will continue to decay (inspiral) over the next ~300 million years, until… ...
Slides
... Pluto doesn’t orbit the sun in the same direction as the other planets do It’s inclined at 18 degrees, which makes it more elliptic compared to the existing planets For a period of time it is closer to the sun than Neptune is, due to its eccentricity ...
... Pluto doesn’t orbit the sun in the same direction as the other planets do It’s inclined at 18 degrees, which makes it more elliptic compared to the existing planets For a period of time it is closer to the sun than Neptune is, due to its eccentricity ...
1.3 Lifecycle of stars
... A star of more than 8 solar masses can fuse elements far beyond carbon in its core, leading to a very different fate. Its path across the H-R diagram is essentially a straight line—it stays at just about the same luminosity as it cools off. Eventually the star dies in a violent explosion called a su ...
... A star of more than 8 solar masses can fuse elements far beyond carbon in its core, leading to a very different fate. Its path across the H-R diagram is essentially a straight line—it stays at just about the same luminosity as it cools off. Eventually the star dies in a violent explosion called a su ...
Stars - WhatisOutThere
... stars!! ( one hundred thousand million )! If someone tried to count the stars of the milky way, at a rate of one star per second, it would take over 3,170 years!! ...
... stars!! ( one hundred thousand million )! If someone tried to count the stars of the milky way, at a rate of one star per second, it would take over 3,170 years!! ...
The Stellar Graveyard
... Generally speaking, all stars with main sequence masses less than 5 solar masses will end up becoming white dwarfs because there is so much mass loss during the various phases of stellar evolution following hydrogen core exhaustion. Measuring the current mass of a white dwarf, therefore, does not ...
... Generally speaking, all stars with main sequence masses less than 5 solar masses will end up becoming white dwarfs because there is so much mass loss during the various phases of stellar evolution following hydrogen core exhaustion. Measuring the current mass of a white dwarf, therefore, does not ...
The Bigger Picture
... • The parallax effect is the apparent motion of a nearby object compared to distant background objects because of a change in viewing angle. • Put a finger in front of your nose and watch it move with respect to the back of the room as you look through one eye and then the other. ...
... • The parallax effect is the apparent motion of a nearby object compared to distant background objects because of a change in viewing angle. • Put a finger in front of your nose and watch it move with respect to the back of the room as you look through one eye and then the other. ...
The Galaxy–Dark Matter Connection
... Relation between morphology and environment revisited Environment quantified to first order by distinguishing satellite and central galaxies in the group catalogue. Morphological indicator: Concentration (=R90/R50) ...
... Relation between morphology and environment revisited Environment quantified to first order by distinguishing satellite and central galaxies in the group catalogue. Morphological indicator: Concentration (=R90/R50) ...
Physics-Y11-LP3 - All Saints` Catholic High School
... • recall that Cepheid variable stars pulse in brightness, with a period related to their luminosity • recall that and explain qualitatively how this relationship enables astronomers to estimate the distance to Cepheid variable stars • understand the role of observations of Cepheid variable stars in ...
... • recall that Cepheid variable stars pulse in brightness, with a period related to their luminosity • recall that and explain qualitatively how this relationship enables astronomers to estimate the distance to Cepheid variable stars • understand the role of observations of Cepheid variable stars in ...
chap18_s05_probs
... the solar system, you are asked to determine the total mass within a volume equal to the size of Earth. ANSWER: You are given a density (the number of hydrogen atoms per volume) and asked to determine the total amount of mass within that volume. The volume is the volume of Earth. Given the definitio ...
... the solar system, you are asked to determine the total mass within a volume equal to the size of Earth. ANSWER: You are given a density (the number of hydrogen atoms per volume) and asked to determine the total amount of mass within that volume. The volume is the volume of Earth. Given the definitio ...
The Universe and Galaxies - West Jefferson Local Schools
... light travels in one year 1 light year = 9.5x1015m light travels at 3.0x108m/s ...
... light travels in one year 1 light year = 9.5x1015m light travels at 3.0x108m/s ...
ASTR 100: Homework 1 Solutions McGaugh, Fall 2008
... McGaugh, Fall 2008 1. Problem 1-15. “Our solar system is bigger than some galaxies.” This statement makes no sense. A galaxy is composed of hundreds of billions of stars, while our solar system is ‘just’ the stuff orbiting one star, our sun. Our solar system is a tiny part of the Milky Way Galaxy, b ...
... McGaugh, Fall 2008 1. Problem 1-15. “Our solar system is bigger than some galaxies.” This statement makes no sense. A galaxy is composed of hundreds of billions of stars, while our solar system is ‘just’ the stuff orbiting one star, our sun. Our solar system is a tiny part of the Milky Way Galaxy, b ...
Characteristics of the Sun
... However, compared with other stars, the Sun is rather ordinary. It is about in the middle of the ranges for star size and brightness. Many of the stars that you can see in the night sky are actually bigger and brighter than the Sun—they only appear smaller because they are much farther away. Howeve ...
... However, compared with other stars, the Sun is rather ordinary. It is about in the middle of the ranges for star size and brightness. Many of the stars that you can see in the night sky are actually bigger and brighter than the Sun—they only appear smaller because they are much farther away. Howeve ...
Stellar Evolution: Evolution: Birth, Life, and Death of Stars
... the ordinate "absolute magnitude" is a logarithmic measure of power. Most of the stars lie on the “main sequence”: massive stars are hot and have high power (top left), while the small stars have lower masses, are cold and have low power (bottom right) The giant stars lie on the topright part of ...
... the ordinate "absolute magnitude" is a logarithmic measure of power. Most of the stars lie on the “main sequence”: massive stars are hot and have high power (top left), while the small stars have lower masses, are cold and have low power (bottom right) The giant stars lie on the topright part of ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.