stars

Slide1: 

Stars and Other Stuff

Slide2: 

First Direct Viewing of a planet outside our solar system?

Slide3: 

H-R Diagram

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Spectral Classes Spectral Classes

Slide6: 

Absolute Magnitude vs Apparent Magnitude: Apparent Magnitude is how bright a star is to the eye. It doesn’t consider that one star may be nearer to the viewer than other stars. Absolute Magnitude is how bright a star would be if it were viewed from a standard distance of 10 Parsecs (32.6 LightYears)

Slide8: 

Pulsars

Slide9: 

PULSAR A pulsar is a rapidly spinning neutron star that emits energy in pulses. Pulsars were discovered in 1967 by S. Jocelyn Bell Burnell (1943- ), who was a Cambridge University astronomy graduate student at the time. Her graduate advisor (Anthony Hewish) was given a share of the 1974 Nobel Prize, but Bell was ignored. No one had any idea what these unusual objects were at the time, so the name little green men (LGM) was used. Soon, Thomas Gold suggested that pulsars were rapidly-spinning neutron stars, the remnants of a supernova.

Slide10: 

Black Hole Information

Slide11: 

Space Warping of a BlackHole

Slide12: 

Active Black Hole Ejection and Accretion Disk

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Polar Ejection of Black Hole

Slide14: 

Nearby Star being “eaten” by a blackhole

Slide15: 

Black Hole at the Center of every galaxy????

Slide16: 

At the center of our Milky Way Galaxy lies a black hole with over 2 million times the mass of the Sun. Once a controversial claim, this astounding conclusion is now virtually inescapable and based on observations of stars orbiting very near the galactic center.