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If you are standing at latitude 44° north, which of the following stars will be circumpolar from your location?

A) Bellatrix (g Orionis), declination = 6° north

B) Caph (b Cassiopeiae), declination = 59° north

C) Almaaz (e Aurigae), declination = 44° north

D) A and B

E) All of the above.

The answer is b..but why?!

2007-09-24 21:21:48 · 1 answers · asked by Jfadsl L 1 in Science & Mathematics Astronomy & Space

1 answers

From Wikipedia:

At northern latitudes φ > 0, celestial objects with a declination greater than 90° - φ, are always visible. Such stars are called circumpolar stars[...]

So if you are at 44° north latitude, a circumpolar star must have declination greater than (90-44) = 46° north.

2007-09-24 21:26:26 · answer #1 · answered by Scarlet Manuka 7 · 1 0

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