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Wtlftm dec  2010
 

Wtlftm dec 2010

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    Wtlftm dec  2010 Wtlftm dec 2010 Presentation Transcript

    • What to look for in December 2010
      MikalCaldon, Athena Giles, Peter Palfi, Jenny Parker
    • Object #1: Total Lunar Eclipse
      December 21st, 2010
    • BACKGROUND INFORMATION
      • Earth’s 2 types of shadow: umbra and penumbra.
      • 3 types of lunar eclipses: penumbral, partial, and total.
      • Lunar eclipses are completely safe to view, with no special equipment
      • Last total eclipse visible from North America was February 21, 2008; next one on October 8, 2014.
    • ECLIPSE DETAILS
      • Mid-eclipse 3:17 am
      • Totality will last 72 minutes; entire eclipse 3 hours 28 minutes
      • Through northern half of umbra (southern edge of moon will appear darker)
      • Entire eclipse visible only from North America, Greenland, Iceland.
    • WHY NOW?
      • Eclipses are relatively rare (0 to 3 per year worldwide, not all visible from here), total eclipses even rarer.
      • Occurs on same day as winter solstice (moon at maximum northern position in its orbit)
      • Mid-Eclipse Coordinates: Azimuth 264° 24’; Altitude 41° 8‘
      “The three dimensional reality of our universe comes alive in a graceful celestial ballet as the Moon swings through the Earth's shadow.“
    • Object #2: Orion Nebula
    • BACKGROUND INFORMATION
      • Galileo observed a grouping of stars in the trapezium region of the Orion Nebula and from his sketches, we are able to see that the grouping of stars is in fact the Orion Nebula.
      • The Orion Nebula’s glowing gas surrounds stars at the edge of a huge interstellar molecular cloud 1500 light years away.
      • The stellar winds from stars create bubbles and arcs and bowl shaped appearances.
      • Next time you view the Orion Nebula, try to notice the three star belts and star hanging from the belt.
    • WHY NOW?
      • The Orion Nebula is going to be amazingly interesting to see in December because this is the best month to see it.
      • The Orion Nebula is the best and easiest thing to observe through a telescope.
    • Object #3: Geminids Meteor Shower
    • BACKGROUND INFORMATION
      • Most reliable meteor shower of year
      • Characterized by multicolored display
      • 65% white, 26% yellow, 9% blue, red and green
      • Parent Comet: 3200 Phaethon
      • Called Geminids because they appear around the constellation Gemini
      • Appeared suddenly in the early 1860’s
      • Number of meteors have increased from about 14 meteors per hour when first observed to 50-80 meteors per hour now
    • WHY NOW?/HOW TO LOCATE
      • Geminids occur this time of year, when Earth passes through the trail left by a comet as it passed by our orbit
      • Meteors from the Geminids can begin to be seen around Dec. 6th
      • Peak is on the night of Dec. 13th
      • Meteors will begin to appear frequently that night around 9-10 pm
      • The best viewing time will be after moonset
      • Climax of shower will be around 2 am
    • Winter solstice
      • Shortest day of the year in the north and longest day in the south
      • The axis of the earth (North pole) is pointed away from the sun so no matter how much it spins no light will reach the north
      • The south will have sunlight all day and it’s a good time to see midnight sun
      • Total lunar eclipse is happening the same day
      • Many stars and constellation should be visible to us fairly early
      • It will happen December 21st
      • According to Gregorian calendar a Dec. 21st solstice hasn’t occurred since 1903 and wont happen till 2063
    • Taurus
      Constellation of a bull head with the horns
      Made up of about 20 different stars
      Bull is a sign of strength
      Very large constellation
      Found In northeast hemisphere
      Between Aries and Gemini
      Three major things to look for is the stars Hyades, Aldebaran and Pleiades
    • Picture of Taurus
    • Works Cited
      • http://eclipse.gsfc.nasa.gov/OH/OH2010.html
      • http://www.mreclipse.com/LEdata/TLE2010Dec21/TLE2010Dec21.html
      • http://www.wallpaper-place.com/space/orion-nebula-hd-wallpaper/
      • http://meteorshowersonline.com/geminids.html
      • http://www.chiff.com/science/geminids.htm
      • http://earthsky.org/astronomy-essentials/earthskys-meteor-shower-guide