Answered

what is the sun's right ascension on the first day of winter?

A0 hours
B6 hours
C12 hours
D18 hours.

thank you :)

Verified Answer :

AL2006

From the point of view of the northern hemisphere:

The sun starts out the year at the Spring equinox, March 21,
Right Ascension 0, Declination 0.

3 months later, Summer solstice, June 21
RA = 6 hours, Dec. = +23.5°

3 months later, Fall equinox, September 21,
RA = 12 hours, Dec. = 0

3 months later, Winter solstice, December 21,
RA = 18 hours,  Dec. = -23.5°

namekianball4

The answer is D. 18 hours.

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