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Draco

Published on Nov 18, 2015

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PRESENTATION OUTLINE

DRACO

BY: KEVIN COLUCI

BACKGROUND

  • Draco means "Dragon" in Latin
  • It is only present or visible in the Northern Hemisphere

HOW TO FIND

  • It is easiest to find the constellation Draco by first finding four stars in the shape of a trapezoid, of the "dragons head". This makes up "The Lozenge" and consists of the stars Beta, Gamma, Xi, and Nu Dra.
  • The brightest star in the constellation is Gamma Draconis or Etamin, Eltanin, or Ettanin
  • Gianfar is the name of the star at the end of the "dragons tail"

(CONTINUED)

  • Many are able to locate the Big and Little Dipper, and Draco's "tail" ends between these two constellations

WHEN AND WHERE TO VEIW

  • Draco can be seen at latitudes between +90° and -15°
  • This constellation is easiest to view during the summer, specifically during July around 9pm

MYTH/ STORY

  • Associated with several myths
  • (Main) The twelve labours of Heracles
  • Draco represent Ladon, the dragon that guarded the golden in the gardens of the Hesperides

DEEP SKY OBJECTS IN DRACO

  • CAT'S EYE NEBULA
  • Approximately 3300 light years distant from Earth
  • One of the most complex nebulae ever discovered
  • Formed about a thousand years ago, when a bright hot star lost its outer envelope in the red giant phase.

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  • DRACO DWARF GALAXY
  • Is a satellite galaxy of the Milky Way, one of the faintest ones.
  • Discovered by the American astronomer Albert George Wilson in 1954
  • Contains five carbon stars

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  • SPINDLE GALAXY
  • Discovered in 1781 by either Pierre Méchain or Charles Messier, and then independently discovered by William Herschel in 1788.
  • It is one of the brightest galaxies in the NGC 5866 group
  • Notable for its extended disk of dust