Enjoying the Night Sky

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Enjoying the Night Sky
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Horizon and Zenith
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Stars and constellations
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Zodiac Constellations
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Astrophotography

• All you need
• 35 mm Camera on tripod
• Cable shutter release
• F-stop on smallest number
• Focus to infinity
• Fast film (at least 400 speed)

• Aim the camera, and hold shutter open for
• 10-30 seconds for constellations
• As long as you want for star-trails

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Star-trails
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Circumpolar star-trails
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Why the trails?
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Sagitarrius and Milky Way 30 second exposure
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Wandering Stars the planets

• The ancients knew of seven objects that wandered
  through the stars (the Sun, Moon, Mercury, Venus,
  Mars, Jupiter, and Saturn). They called these
  wanders the planets (from the Greek for
  wanderer).
• All of these objects are visible with the naked
  eye.

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The Moon
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Earth and Moon compared
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Phases of the Moon
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Eclipses of the Moon

• A lunar eclipse occurs when the Moon passes into
  the shadow of the Earth.
• The lunar eclipse is visible to everyone on the
  night side of the Earth.
• Aristotle (384-322 B.C.) used the apparent shape
  of the Earths shadow to show that the Earth is a
  sphere.

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Lunar Eclipse
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Lunar Eclipse
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Lunar Eclipse Showing Earths Shadow
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Lunar eclipses
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Spacecraft (satellites)
http//www.heavens-above.com
 
 
International Space Station