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Light - Dan Caton
Light - Dan Caton

... C = speed of light V = radial velocity λ0 = rest wavelength ...
PowerPoint - Chandra X
PowerPoint - Chandra X

... from Earth in the constellation Cygnus. Chandra’s image of NGC 7027 represents the first detection of X-rays from this young planetary nebula that is about 700 years old. A bubble of 3 million degree Celsius gas with a length about a hundred times that of our solar system is shown in the image. The ...
Image Credit: NASA,ESA, HEIC, Hubble
Image Credit: NASA,ESA, HEIC, Hubble

... • Iron core No more reactions can produce energy to hold out core • Star begins to collapse due to gravity • What stops the collapse? – Electron degeneracy pressure – Electrons resist when we try to place them in the same place (not the same thing as electrostatic repulsion) – As soon as the collap ...
File - YEAR 11 EBSS PHYSICS DETAILED STUDIES
File - YEAR 11 EBSS PHYSICS DETAILED STUDIES

... To do this we need to look at the spectrum of the light received from the star. The spectral lines can tell astrophysicists about not only the temperature, but can be interpreted in a way to give the luminosity of the star also. ...
What Do We Really Know About the Universe?
What Do We Really Know About the Universe?

... • Chemical composition or magnetic fields of bodies in the solar system. We can analyze either by close flybys or actual landings. • Positions and motions of planets, moons, etc. – direct telescope observation. • Radiation output, etc. – direct measurements. • Distance to stars up to about 50 light ...
monkeyball_lifecycleofastar
monkeyball_lifecycleofastar

...  The heat generated from a high star can is so hot that if our sun was a high mass star ...
220913 - SunPM - Pmike
220913 - SunPM - Pmike

... The constellations are different sizes and shapes. So the sun spends different lengths of time lined up with each one. The sun points to Virgo for 45 days, but it points to Scorpio for only 7 days. The sun is also aligned with Opiuchus for 18 days each year. ...
Lec6
Lec6

... • Any star that varies significantly in brightness with time is called a variable star ...
Astrology
Astrology

... • Are horoscopes does before the discovery of Uranus and Neptune incorrect? • Should horoscopes include Pluto? • Do extra-solar planets count? • Are ascendents/descendents meaningful in Alaska? • Is astrology a subtle form of bigotry? • Why aren’t astrologers rich? ...
Relativity
Relativity

Astrology
Astrology

... •  Sun sign compatibility? No correlation with 3000 couples marrying or 500 divorcing. •  Choice of profession: No correlation with Sun sign for 6000 politicians or 17,000 scientists •  Horoscope of mass murderer sent to 150 people. 94% said it described them well. •  3000 specific predictions about ...
Astrology
Astrology

... • Sun sign compatibility? No correlation with 3000 couples marrying or 500 divorcing. • Choice of profession: No correlation with Sun sign for 6000 politicians or 17,000 scientists • Horoscope of mass murderer sent to 150 people. 94% said it described them well. • 3000 specific predictions about cel ...
Nebulae
Nebulae

... Jets: Clumps of glowing gas are sometimes found along these jets and at their ends ...
Some additional notes by Jena Griffiths on our call
Some additional notes by Jena Griffiths on our call

... or wife. (She is the mirror of him so he’s not getting enough support from his inner feminine.) ...
Sun Web quest
Sun Web quest

... 9. How large is the sun compared to Jupiter? How large is Jupiter compared to the Earth? Website address: ...
Orbits in Spherical Potentials
Orbits in Spherical Potentials

... • Once we have solved for the gravitational potential (Poisson’s eq.) of a system we want to know: How do stars move in gravitational potentials? • Neglect stellar encounters • use smoothed potential due to system or galaxy as a whole ...
The Milky Way Galaxy
The Milky Way Galaxy

... The Rotating Galaxy • The long spiral arms of the galaxy tell us that the galaxy is spinning. • It takes around 230 million years for one revolution of the Solar System. • We are not anywhere near the center of the galaxy; we’re just a satellite system. ...
Sky & Astronomy - Wayne State University Physics and Astronomy
Sky & Astronomy - Wayne State University Physics and Astronomy

... • He established a pioneering compilation of a very large number of stars and stellar objects • He discovered that the position in the sky of the North Celestial Pole had altered over the previous century and a half – This phenomenon is called precession 11 Jan 2005 ...
The Central Star of A63 – UU Sge Don Pollacco, Ralf
The Central Star of A63 – UU Sge Don Pollacco, Ralf

... UU Sge is unique amongst central star in that it is a totally eclipsing binary. Hence physical parameters for the components can be derived, in principle, with great accuracy. The morphology of A63 is extreme, exhibiting an aspect ratio of some 7:1! ...
Unit 1
Unit 1

... In a lunar eclipse, the Earth casts a shadow on the surface of the Moon. In its orbit, the Moon passes through the penumbra and umbra of the Earth The penumbra of the Earth is the part of the shadow where the light from the Sun is only partially blocked. The Moon dims a little as it passes into the ...
The science behind our Sun and its interaction with Earth The
The science behind our Sun and its interaction with Earth The

... significant connection to the Sun. Although astronomy is as ancient as recorded history itself, it was long separated from the study of physics. In ancient times people observed celestial bodies in the sky that seemed to be perfect spheres moving in perfectly circular orbits. Early astronomers and s ...
doc
doc

... This reaction requires T~100 million degrees K, which the core has attained by its contraction and heating. But for low mass stars (less than about 2 Mo), when the He gets hot enough to ignite, the core is so dense that the gas is degenerate. (This is an important concept, and will recur when we des ...
HW #8 Answers (Due 10/21)
HW #8 Answers (Due 10/21)

proper motion
proper motion

... Henderson and Struve were lucky. Two of the brightest stars in the sky ( 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 because ...
ASTRONOMY 1102 1
ASTRONOMY 1102 1

... H{R diagrams are required for observational tests of the theory of stellar evolution. Distance determinations from the distance modulus of standard candles such as Cepheids and Supernovae of Type Ia. Review HW 6 and 7. ...
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Timeline of astronomy

Timeline of astronomy around 2300 BC.
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