warm up - matching a -sun -alpha centauri -proximi centauri -binary system -nova -galaxies -nebulae...
TRANSCRIPT
Warm UP - Matching
A-Sun-Alpha Centauri-Proximi Centauri-Binary System-Nova-Galaxies-Nebulae-Constellations
b-Huge clouds of dust and gas glowing between the stars-Single Stars System-Star that brightens, then dims-Star closest to Earth-Stars that form patterns-Various star groups major features of the universe-Most stars in this group-Triple star system, closest to the sun
Answer
Word - DefinitionSun – single start systemAlpha Centauri – triple star system, closest to the sunProximi Centauri – Star closest to EarthBinary System – most stars in this groupNova – Start that brightens, then dimsGalaxies – various star groups: major features of the universeNebulae – Huge clouds of dust and gas glowing between the starsConstellations – stars that form patterns
Guiding Questions
By the end of this lesson
1. What are galaxies? What are the three main types of galaxies?
2. What is the size and shape of the Milky Way Galaxy?
Although Stars are so far away
Astronomers can not locate individual stars but
can detect huge groups of stars
Traveling the Speed of Light…..
The distance light can travel in a unit of time through a substance.
through a vaccum: 186,000 miles per second
300,000 kilometers per secondBut you still must travel much faster
Alph Centauri is a multiple star system3 stars to be exact
Proximi Centauri is the first of the stars, Its actually the closest star toEarth.
Journey Continues
Alpha Centauri is not so unusual. Over half the stars in the sky have at least one companion star
Most stars are double star systems, two stars revolve round each other.Binary Stars
Thousands of years ago………Arab Shepherds discovered that about every three days a certain bright star suddenly became dim and disappeared, only to brighten again.
Next Stop….It was named Algol “Ghoul”Binary Star System
One of Algol’s stars is small bright blue – Visible from EarthThe other is large, dim , and yellow – non visible from Earth
About every three days the larger star passes between the smaller star and Earth, blocking the smaller stars light
So every three days the smaller star appears to disappear.
Journey continues in any direction…..One path goes passed the Dog Star – Sirius
Over 8 light years away
Polaris has long been an important star for navigation
Sailors would know that sailing toward the star would mean they were sailing North
Polaris is at the end of the handle of a group of stars called……Little Dipper.
Little Dipper makes up the constellation of stars called Ursa Minor – Little Bear
Constellation
Groups of stars in which people at one time though they saw imaginary figures of animals or people.
There are…… 88 Major Constellations
Constellation Construction
~ Find the Month of your birth.~ Choose a constellation found in that month~ On construction paper sketch a large version~ Make sure to make a point for each star~ Use yellow, green, blue and orange yarn for place markers~ Hang each string from the point of each star.~ Yarn should be varying lengths
January
• Caelum • Dorado • Mensa • Orion • Reticulum • Taurus
February
• Auriga • Camelopardalis • Canis Major • Columba • Gemini • Lepus • Monoceros • Pictor
March
• Auriga • Camelopardalis • Canis Major • Columba • Gemini • Lepus • Monoceros • Pictor
April
• Antlia • Chamaeleon • Crater • Hydra • Leo • Leo Minor • Sextans • Ursa Major
May
• Canes Venatici • Centaurus • Coma Berenices • Corvus • Crux • Musca • Virgo
June
• Boötes • Circinus • Libra • Lupus • Ursa Minor
July
• Apus • Ara • Corona Borealis • Draco • Hercules • Norma • Ophiuchus • Scorpius • Serpens • Triangulum Australe
August
• Corona Austrina • Lyra • Sagittarius • Scutum • Telescopium
September
• Aquila • Capricornus • Cygnus • Delphinus • Equuleus • Indus • Microscopium • Pavo • Sagitta • Vulpecula
October
• Aquarius • Cepheus • Grus • Lacerta • Octans • Pegasus • Piscis Austrinus
November
• Andromeda • Cassiopeia • Phoenix • Pisces • Sculptor • Tucana
December
• Aries • Cetus • Eridanus • Fornax • Horologium • Hydrus • Perseus • Triangulum