Your Local Sky A.Where Is the North (Or South)celestial Pole in Your Sky

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Examlex · Accepted Answer

The Answer is Answers will vary with latitude;the following is a sample answer for latitude 40°N.
a.The north celestial pole appears in the sky at an altitude of 40°,in the direction due north.
b.The meridian is a half-circle that stretches from the point due south on the horizon,through the zenith,to the point due north on the horizon.
c.The celestial equator is a half-circle that stretches from the point due east on the horizon,through an altitude of 50° due south,to the point due west on the horizon.
d.Because the north celestial pole appears due north at an altitude of 40°,a star is circumpolar if it is within 40° of the north celestial pole.The north celestial pole has a declination of +90°,so within 40° means declinations greater than +50°.
e.On the fall equinox,the Sun rises due east,reaches an altitude of 50°S on the meridian,and sets due west.
f.On the winter solstice,the Sun rises more than 23.5° south of due east,reaches an altitude of 50° - 23.5° = 26.5° on the meridian in the south,and sets more than 23.5° south of due west.

Your Local Sky A.Where Is the North (Or South)celestial Pole in Your Sky

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