What does Sagittarius contain

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What does Sagittarius contain?

• Researched by Jessie

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The Archer

• Sagittarius is known as The Archer, or half-man
  and half-horse.

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• Sagittarius lies by the center of our galaxy.
• When you look at it, you are looking at the
  densest possible concentration of stars.
• Sagittarius is filled with beautiful nebulae,
  clusters, and star clouds and lies in the Milky
  Way.

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Hard to find

• Sagittarius is not the easiest constellation to
  find.
• First, find Scorpios, the scorpion, which is easy
  to find.
• Then, you will see the six stars that outline the
  bow and arrow.
• Gamma, the head of the bow, is pointing at
  Antares, the red-orange star that marks
  Scorpions heart.

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• Sagittarius is highest in the sky at midnight on
  July 7th.
• The date the Sun is in Sagittarius is between
  December 18th and January 18th.

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• Sagittarius never rises high enough in the sky to
  be fully appreciated.
• When you look at it through binoculars or a
  telescope, it will take your breath away.

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• Sagittarius contains two of the most famous
  nebulae Lagoon nebulae and Trifid.

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Lagoon Nebulae (M8)

• Lagoon Nebulae is one of the brightest nebulae
  there is.
• Fifth magnitude.
• Lagoon Nebulae forms a triangle with Lambda and
  Mu.
• Can be seen with just your eyes.
• Only high-powered photographs bring out its true
  beauty because your able to see tiny Bok
  globules, on the way to becoming stars.

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Lagoon Nebulae

• 100 light years across
• 5000 light years away
• Named because of the shape of the dark lane
  running through it.

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Trifid (M20)

• Trifid is north of Lagoon nebulae.
• When you look through binoculars, it appears as a
  small misty patch.
• When looked at through a telescope, three dark
  dust lanes are revealed.

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Trifid
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Omega nebulae (M17)

• On the northern border of Sagittarius, on the
  edge of the Milky Way.
• Found by following a line between Mu and Gamma
  Scuti, in another constellation.
• Sort of has the shape of the Greek letter omega.
• Also called the Swan and Horseshoe nebulae.

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Omega Nebulae
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• M24 (Small Sagittarius Star Cloud)

• M18

• South of Omega Nebulae.
• Open cluster.

• South of M18.
• Neither a nebulae nor a cluster.
• It is a general brightening of the Milky Way.

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• M23

• M21

• Makes a triangle with Mu and M24.
• Open cluster.
• Has 100 stars, up to ninth magnitude.

• South of Trifid.
• Similar to M23.

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• M54

• M55

• Globular.
• Located close to Zeta.

• Globular.
• East of M54.
• Looser condensation of stars than M54.
• Counted in thousands, unlike M22.

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• Sagittarius has more than 20 globular clusters,
  1/10 of the number known.
• Globulars tend to congregate around the centers
  of galaxies.

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M22

• Top globular.
• Forms a triangle with Lambda and Phi.
• M22 is a dense grouping of millions of stars.
• Sixth magnitude.
• Looks great when viewed through binoculars or a
  telescope, but can also be seen with the eyes
  alone.

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• Sagittarius is a beautiful constellation. It is
  full of nebulae, stars, star clouds, dust lanes,
  and many more brilliant, extraordinary things. If
  you would take the time to really look at it, you
  will realize just how amazing it really is.

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Bibliography

• The Book of Constellations by Robin Kerrod
• The Star Guide by Robin Kerrod
• Zodiac Celestial Circle of the Sun by Jacqueline
  Mitton and Christina Balit