'Absolute magnitude' presentation slideshows

Next Week The Vernal Equinox

Next Week The Vernal Equinox. Now on to Chapter 12: Measuring the Properties of Stars. When does the Spring Equinox Occur?. The Family of Stars. Those tiny glints of light in the night sky are in reality huge, dazzling balls of gas, many of which are vastly larger and brighter than the Sun

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The hydrogen lines in spectral type A stars

The hydrogen lines in spectral type A stars. are most narrow for supergiants. are most narrow for main sequence stars. can not be used to estimate the luminosity of the star. are very weak and difficult to see. are useful in determining the apparent magnitude of the star.

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Chapter 10

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The Sun and Stars

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Chapter 19 Star Formation

Chapter 19 Star Formation. Stellar Temperatures. The color of a star is indicative of its temperature . Red stars are relatively cool, while blue ones are hotter. Stellar Temperatures.

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LIFE CYCLE OF STARS By: Annette Miles

LIFE CYCLE OF STARS By: Annette Miles. This is a Hubble Heritage image of Sagittarius Star field. From left to right the image is 13.3 light-years across. What do you notice by looking at this image? .

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Research Methods

Research Methods. Factor Analysis. Factor analysis is a technique used to uncover the latent structure ( dimensions ) of a set of variables.

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Stellar Parallax

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Likelihood Methods in Ecology

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Photometry

Photometry. Photometry measures the energy from a source using a narrow range of wavelengths. Visual wavelengths from 400-700 nm Narrower slice of wavelengths Photometry uses filters to select wavelengths. Spectroscopy measures energy over a wide range of wavelengths. Visual spectrum

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L. Perivolaropoulos http://leandros.physics.uoi.gr Department of Physics University of Ioannina

Open page. Reconstruction of Scalar-Tensor Theories from the Hubble Expansion History. L. Perivolaropoulos http://leandros.physics.uoi.gr Department of Physics University of Ioannina. Main Points. Dark Energy Equation of State w(z) may be crossing the w=-1 line.

327 views • 24 slides

The Sun

The Sun. IV. The Sun. A. All life on Earth depends on the energy that comes from the star in the center of our solar system. B. Energy produced by the Sun is due to hydrogen atoms fusing together to produce helium atoms. C. The Sun is composed of 3 layers:

367 views • 21 slides

Stellar Remnants

Stellar Remnants. Stellar Remnants White Dwarfs. Discovery for White Dwarfs The first white dwarf was discovered when the star Sirius (the Dog Star) was suspected to have an unseen binary companion in 1850.

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RF Superconducting Materials Workshop at Fermilab

A Novel Method to Measure the Absolute Value of the Magnetic Penetration Depth in Superconductors. Vladimir V. Talanov*, Steven M. Anlage , Lucia Mercaldo # John H. Claassen (NRL). * Solid State Measurements, Inc., Pittsburgh, PA # ENEA- Portici Research Center - Italy .

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What is a Star???? a body of gasses that gives off energy Very hot! 3,000-50,000 C

What is a Star???? a body of gasses that gives off energy Very hot! 3,000-50,000 C Made of elements H, He, C, N, O. Space: Stars and Galaxies. Grouping Stars . Constellations Groups of stars that have been named after a myth. Asterisms. Parts of constellations.

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The Hertzsprung-Russell Diagram (a.k.a. H-R Diagram)

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Vocab 12-1 Use your book or Quizlet word / defintion / picture

Vocab 12-1 Use your book or Quizlet word / defintion / picture. Star Light-year Luminosity Apparent magnitude Absolute magnitude H-R diagram Spectroscope.

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Betelgeuse

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Astrophysics from Space Lecture 4: The extragalactic distance scale

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