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Watching the Aurora From Orbit

July 25, 2017 starjunkie 0

https://www.nasa.gov/news/releases/latest/index.html Expedition 52 Flight Engineer Jack Fischer of NASA shared photos and time-lapse video of a glowing green aurora seen from his vantage point 250 miles up, aboard the International Space Station. This aurora […]

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Hubble’s Hunting Dog Galaxy

July 24, 2017 starjunkie 0

https://www.nasa.gov/news/releases/latest/index.html Tucked away in the small northern constellation of Canes Venatici (The Hunting Dogs) is the galaxy NGC 4242. Source: NASA Image of the Day Hubble’s Hunting Dog Galaxy NASA Image of the Day

Telescope Types

Catadioptric Telescopes

March 18, 2017 starjunkie 0

Catadioptric telescopes use a combination of mirrors (reflection) and lenses (refraction) to create an image within your eyepiece (or camera). This process allows for less distortion and higher focal length in a compacted telescope. Their […]

Telescope Types

Refractor Telescopes

March 18, 2017 starjunkie 0

When people think of telescopes, the type that they are probably referring to is a refracting telescope. The first ‘telescope’ ever used was created by Hans Lippershey, a 17th century spectacle maker. There are many […]