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Lunar Eclipse
[ Lunar Eclipse ]

·Astronomy: Mars - Geology-RED-ROCK GEOLOGY
·Astronomy: Mars - DUST STORMS
·Astronomy: Mars - GETTING EQUIPPED
·Astronomy: Mars
·Astronomy: Lunar Eclipse - MOON COLORS
·Astronomy: Lunar Eclipse - Eclipse Photo
·Astronomy: Lunar Eclipse
 

 
 
Astronomy & Telescope Astronomy: Lunar Eclipse

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  Lunar Eclipse Lunar Eclipse: Astronomy: Mars - Geology-RED-ROCK GEOLOGY

RED-ROCK GEOLOGY

Of all the Sun's other planets, Mars is the most Earth-like. Its polar axis tilts 25 degrees to its orbit (Earth's tilts 23 1/2 degrees), the Martian day lasts just 41 minutes longer than ours, and it has clouds, seasons, and polar ice caps. Despite these similarities, Mars is a frigid desert world, geologically inactive and hostile to life as we know it. Its atmosphere is too thin to allow liquid water at the planet's surface and offers no barrier to ultraviolet light from the Sun.

 
 
  Posted by astronomy on Saturday, December 04 @ 15:38:20 CST (6 reads)
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  Lunar Eclipse Lunar Eclipse: Astronomy: Mars - DUST STORMS

DUST STORMS

Vast lava flows and boulder fields, such as Syrtis Major, usually appear as dark markings on the surface. However, their visibility varies because winds carry dust across them, obscuring them in whole or in part. Blowing dust can also hide smaller markings or make them difficult to identify.

 
 
  Posted by astronomy on Saturday, December 04 @ 15:37:16 CST (6 reads)
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  Lunar Eclipse Lunar Eclipse: Astronomy: Mars - GETTING EQUIPPED

GETTING EQUIPPED

Small telescopes can show you something of Mars, but to see details you will need at least a 5 inch (125 mm) refractor or an 8 inch (200 mm) reflector, and long focal ratios (f/8 to f/10 or more) are preferable. Good seeing is also essential.

 
 
  Posted by astronomy on Saturday, December 04 @ 15:36:34 CST (7 reads)
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  Lunar Eclipse Lunar Eclipse: Astronomy: Mars

MARS

The Red Planet is Earth's closest cousin, and a recent discovery has raised the tantalizing possibility that life once existed on Mars.

 
 
  Posted by astronomy on Saturday, December 04 @ 15:35:45 CST (6 reads)
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  Lunar Eclipse Lunar Eclipse: Astronomy: Lunar Eclipse - MOON COLORS

MOON COLORS

The spookiest thing about a lunar eclipse is the eerie reddish color that covers the Moon. If Earth had no atmosphere, lunar eclipses would simply turn the shadowed part of the Moon jet-black. But Earth's air acts like a simple lens or prism. It bends part of the Sun's light into the shadow and stains this light a deep, ruddy copper color. In essence, what illuminates the Moon during a lunar eclipse is the light of every sunset and sunrise happening on Earth.

 
 
  Posted by astronomy on Saturday, December 04 @ 15:34:56 CST (7 reads)
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  Lunar Eclipse Lunar Eclipse: Astronomy: Lunar Eclipse - Eclipse Photo

ECLIPSE PHOTOS

As a lunar eclipse progresses, viewers with binoculars and telescopes watch the Moon closely, timing when the shadow reaches individual craters and then estimating how dark the eclipse is. Other observers get a camera, put it on a tripod, and take scenic shots of the dark, copperyMoon in the sky.

 
 
  Posted by astronomy on Saturday, December 04 @ 15:33:57 CST (6 reads)
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  Lunar Eclipse Lunar Eclipse: Astronomy: Lunar Eclipse

LUNAR ECLIPSES

You need not travel far, nor wait for many years, to behold the eerie sight of the Moon as it moves into the Earth's shadow and turns dusky red.

 
 
  Posted by astronomy on Saturday, December 04 @ 15:33:07 CST (7 reads)
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