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Latest Polaris Stories

2012-05-04 09:17:34

The North Star, the Pole Star, the Guiding Star, Polaris: Its many names reflect the many centuries humans have gazed northward to it for guidance. However, recent studies have shown that the North Star is losing mass at a significant rate. Will Polaris, steadfast beacon for early sailors and adventurers alike, vanish from the night sky? Hilding Neilson of the Argelander Institute of Astronomy at the University of Bonn in Germany thinks that he and his colleagues have unlocked the answer...


Latest Polaris Reference Libraries

6_721586ff67f44fafb7d54615e03a0c912
2004-10-19 04:45:41

Circumpolar Star -- Circumpolar stars are those stars which are located near the poles of the celestial sphere. As the Earth rotates, the sky appears to rotate; and most stars will be hidden below the horizon at some point in their circular paths. A circumpolar star is near enough to the celestial pole that it will never go under the horizon. It will therefore be visibile for all the night, and for the entire year. Such a definition implies that different stars can be defined as...

3_a2c4fdaf5bf976e69d1456b42dd2ff742
2004-10-19 04:45:40

Polaris -- Polaris, Alpha Ursae Minoris, is the bright star closest to the north celestial pole. It is also known as the North Star, the Lode Star, or the Pole star. Because it lies nearly in a direct line with the axis of the Earth's rotation "above" the North Pole -- the north celestial pole -- Polaris is apparently motionless from the Earth, and all the stars of the Northern sky appear to rotate around it. Therefore, it makes an excellent fixed point from which to draw measurements...

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Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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