How do I find the right acension and declination of the sun and the moon?
2007-09-26 14:52:16 · 3 answers · asked by scientific08 1 in Science & Mathematics ➔ Astronomy & Space
Right Acension and Declination are the sky’s equivalent of Longitude and Latitude in the surface of the Earth. The celestial equator is divided up into 24 hours (right acension would be something like 2hr 55 minutes).
Declination is the degrees above and below the celestial equator (+90 down to -90).
The problem with your question is that the sun and moon move across the background of the sky, so their RA and Decl change all the time. You need to look it up for your particlular day/time. Try www.heavensabove.com.
2007-09-26 15:56:29 · answer #1 · answered by nick s 6 · 0⤊ 0⤋
I know they have something to do with the position relative to due east that the sun or moon rise and the position relative to due south that the sun reaches at noontime (straight up is 90 degrees). The specific definitions should be able in Wikipedia.
2007-09-26 14:59:22 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋
EQUINOX! Right Ascension 12 hours.
2007-09-30 11:01:07 · answer #3 · answered by Anonymous · 0⤊ 0⤋