The bright star Mintaka (also known as δ Orionis,the western most star of Orion’s belt) is extremely close to the celestial equator. Amateur astronomers can determine the field of view of their telescope (that is the angular width of the region that they can see through the telescope) by timing how long it takes Mintaka to drift through the field of view when the telescope is held stationary in hour angle. How long does it takeMintaka to drift through a 1 degree field of view?
The bright star Mintaka (also known as δ Orionis,the western most star of Orion’s belt) is extremely close to the celestial equator. Amateur astronomers can determine the field of view of their telescope (that is the angular width of the region that they can see through the telescope) by timing how long it takes Mintaka to drift through the field of view when the telescope is held stationary in hour angle. How long does it takeMintaka to drift through a 1 degree field of view?
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The bright star Mintaka (also known as δ Orionis,the western most star of Orion’s belt) is extremely close to the celestial equator. Amateur astronomers can determine the field of view of their telescope (that is the angular width of the region that they can see through the telescope) by timing how long it takes Mintaka to drift through the field of view when the telescope is held stationary in hour angle. How long does it takeMintaka to drift through a 1 degree field of view?
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The sidereal day is the time it takes for the Earth to rotate about its axis so that the distant stars appear in the same position in the sky.
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