Download Constellations and Stars

Milky Way Galaxy
http://maps.nationalgeographic.com/maps/print-collection/milky-way.html
Brightest stars:
1. Sun - 90 million miles from Earth (Yellow Dwarf); 5505 °C
Sun - 864,400 miles in diameter; Earth - 7,926 mi. in diameter
Will become a red giant then a white dwarf
SOLAR FLARES
http://www.nasa.gov/mission_pages/sunearth/news/News030712-X5-4.html
2. Sirius in Canus Minor - 8.6 light years away (~43 trillion miles) meaning we
are seeing light from 8 years ago;
a. There are brighter stars in terms of actual energy and light output, but they
are farther away and hence dimmer. Normally, the only objects that outshine Sirius in our
heavens are the sun, moon, Venus, Jupiter, Mars and Mercury (and usually Sirius outshines
the latter two!).
b. 17,000 degrees F (the sun is about 10,000 degrees F). With slightly more than twice the
mass of the sun and just less than twice its diameter, Sirius still puts out 26 times as much
energy.
c. From Greek word for “scorching”
Binary star system - 2 stars that are about the distance of the sun to Saturn or Pluto apart
http://www.enchantedlearning.com/subjects/astronomy/stars/startypes.shtml
4. Alpha Centauri is the next closest star to us at 4.3 light years away (~21 trillion miles)
7. Rigel in Orion “the foot” is a blue supergiant and part of a 4 star system. 1400 light years
away meaning we are seeing light from 1400 years ago. 60 million miles in diameter (100
times bigger than our sun) & 50,000 times brighter.; 12,000 º C; old star
10. Betelgeuse is over 600 million miles in diameter (1000 times bigger than our sun). 14,000
times brighter. If Betelgeuse were at the center of our Solar System, it would extend past
Jupiter.; 3350 ºC. Will one day supernova or blackhole (maybe already?)
What is a Constellation 1:11 - 3:30
http://www.videojug.com/film/what-is-a-constellation
March sky
http://hubblesite.org/explore_astronomy/tonights_sky/
Our sky
http://www.fourmilab.ch/cgi-bin/Yoursky
The flares took place about an hour apart. And when they hit Earth, the waves of magnetic fields
may disrupt power grids, as well as radio-based communications.
A giant blast of plasma spat from the sun at as much as 4 million miles per hour Tuesday