'Globular clusters' diaporamas de présentation

CRT Review 3 rd Quarter

CRT Review 3 rd Quarter. An astronomical unit is the average distance _____. Between Mercury and the sun Between Mercury and Pluto Light travel in 1 minute Between Earth and the sun. An astronomical unit is the average distance _____. Between Mercury and the sun

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M31: The Andromeda Galaxy 2 million light years from us

M31: The Andromeda Galaxy 2 million light years from us. http://antwrp.gsfc.nasa.gov/apod/. Milky Way Galaxy. 25,000 light years, Or ~ 8 kpc. 200 billion stars. Galactic year = 225 million yr Our sun is 4.6 billion yr old. 1 pc = 3.26 ly.

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C.17 The Milky Way

C.17 The Milky Way. When we try to pick out anything by itself, we find that it is tied to everything else in the universe. John Muir (1838-1914). For comparison of the following slides, the distance from the Sun to Neptune is 8.44 light hours or .000963 light years.

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Chapter 14

Chapter 14. Our Galaxy. All sky view of the Milky Way. Questions. How many stars are in the Milky Way? About 200 billion How many galaxies are there? About 40 billion (approximately). Questions. How old is the Milky Way Galaxy?

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Axions

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Using Semantic Web Technology to Integrate Scientific Data

Using Semantic Web Technology to Integrate Scientific Data. Alasdair J G Gray University of Manchester. Outline. Motivation: Astronomy & The Virtual Observatory Data Integration Challenges Locating the relevant data Requesting the required data Understanding the returned data.

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AGENDA

AGENDA. Discussion Adjourn *Dinner on Own. ABST RACTS. Rachael Beaton Checks & Balances: Testing the Distance Ladder Determination of the Hubble Constant

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Effective long-range interactions in driven systems David Mukamel

Effective long-range interactions in driven systems David Mukamel. Systems with long range interactions. two-body interaction. in d dimensions. for ? <0 the energy is not extensive -strong long-range interactions . self gravitating systems (1/r) ? =-2

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Beginners Astronomy

The Galaxies and Cosmology. Beginners Astronomy. Martin Crow Crayford Manor House Astronomical Society. Last time. The formation of stars. The types of stars and their properties. Measuring the distances to the stars. Variable stars.

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Homework #10

Homework #10. Cosmic distance ladder III: Use formula and descriptions given in question text Q7: Luminosity, temperature and area of a star are related by the Stefan-Boltzmann-Law: L = b A T 4 , so use scaling arguments to figure out L from R,T and R from L,T. Homework #10.

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Pulsar Science with Shanghai 65m Radio Telescope

Pulsar Science with Shanghai 65m Radio Telescope. Zhen Yan, Zhi-Qiang Shen, Xin-Ji Wu. On behalf of the Shanghai 65m Radio Telescope Team. Outline. Introduction to pulsar observation Introduction to SH-65m radio telescope Four low frequency Receivers of SH-65m

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Dec. 1-8, 2010

DARK MATTER IN GALAXIES. Alessandro Romeo. Onsala Space Observatory Chalmers University of Technology SE-43992 Onsala, Sweden. Dec. 1-8, 2010. Overview Dark m atter in SPIRALS Dark matter in ELLIPTICALS Dark matter in DWARF SPHEROIDALS Detecting dark matter Conclusions.

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Chapter 12

Chapter 12. Final Exam Update Dec. 11 th ,2013. Three parts: Part I : test SLO 5 questions. Part II: test SLO 5 questions Part III: Ch. 10,11,12,13,14 .

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23. The Milky Way Galaxy

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Stellar Evolution: Low Mass Stars

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Incorporating Indigenous perspectives in science

Incorporating Indigenous perspectives in science. 1. There's an emu in the sky by Cliff Malcolm 2. Primary Connections. Indigenous Perspectives Framework. Primary Connections - Video. 8 Aboriginal Ways of Learning http://8ways.wikispaces.com/.

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The Milky Way Galaxy

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Stars

Stars. Distances To The Stars. Stars are separated by vast distances. Astronomers use units called light years to measure the distance of stars A light-year is the distance that light travels in a vacuum in a year Proxima Centauri, is the closest star to the sun.

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Galaxy Formation

Galaxy Formation . by Enrique V. Zepeda 10/01/2012. Introduction. First galaxies formed due to fluctuations of density in some areas of the early universe.

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