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Amateur Astronomy

Explore the stars of the summer night sky with this beginner-friendly guide. Learn to identify the Big Dipper, an asterism in Ursa Major, and use it as a stepping stone to find other notable stars and constellations. Discover the Summer Triangle, formed by Deneb, Vega, and Altair, and their associated constellations. In the Southern hemisphere, recognize the distinctive shape of Scorpius and the teapot asterism in Sagittarius. Impress friends and family with your newfound knowledge as you point out these celestial wonders!

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Amateur Astronomy

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  1. Beginner Amateur Astronomy Identifying some stars in the northern and southern summer sky

  2. Objectives • Identify the Big Dipper (not a constellation, but an asterism) and use it to identify a few other stars. • Identify the summer triangle. • Point out these stars to friends and family.

  3. Southern horizon • The most easily recognized constellation is Scorpius • An easily recognized asterism in the constellation Sagittarius is the teapot. • The brightest star in Scorpius is Antares.

  4. S-SE 6/23/05 10:30 PM

  5. Northern horizon • The Big Dipper (in Ursa Major) is the most easily recognized asterism (it’s not a constellation!) • Use it to find The Little Dipper (Ursa Minor), Polaris (Ursa Minor), Cassiopeia, Arcturus (Bootes), Vega (Lyra), Deneb (Cygus), Altair (Aquila). • Deneb is part of the asterism, The Northern Cross. • Deneb, Vega, and Altair are called the Summer Triangle.

  6. N 6/23/05 10:30 PM

  7. Summer Triangle • The Summer Triangle is formed by three bright stars, Deneb, Vega, and Altair in the constellations Cygnus, Lyra, and Aquila. • Slicing through this triangle is the asterism, the Northern Cross, actually part of Cygnus the Swan. • Tonight you will find the summer triangle above the eastern sky and you’ll see it all through the summer as it rises earlier and earlier.

  8. E 6/23/05 10:30PM

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