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https://astronomy.stackexchange.com/questions/2488/why-is-right-ascension-measured-in-hours
Astronomers use this system simply because it is (was) convenient. The sky shifts about 15° every hour or a full circle, 360° every 24 hours (actually 23h56m). So if you want to know where a star is in an hour, simply add an hour to the local hour angle. Share.
https://skyandtelescope.org/astronomy-resources/right-ascension-declination-celestial-coordinates/
Feb 26, 2019 · Because there are 24 hours in a day, each hour of right ascension measured along the equator equals 1/24th of a circle (360° divided by 24) or 15°. That's a little more than one-half the width of the W -shaped constellation Cassiopeia.Estimated Reading Time: 8 mins
https://www.astronomy.swin.edu.au/cosmos/R/Right+Ascension
The right ascension of an object indicates its angular distance from the Vernal Equinox. Adding in the Dec and epoch, the coordinates of a typical star may look something like: 12:52:03.32, -47:34:43.0, J2000.0. In other words in the year 2000.0, the star had an RA of 12 hours 52 minutes and 3.32 seconds, and a Dec of 47 degrees 34 arcminutes 43 arcseconds south of the celestial equator.
http://spiff.rit.edu/classes/phys373/lectures/radec/radec.html
For Right Ascension, astronomers always use the convention of Hours:Minutes:Seconds. There are 24 hours of RA around a circle in the sky, because it takes 24 hours for the Sun to move all the way from sunrise to the next sunrise. Right Ascension 06:45:09, Declination -16:42:58 meaning the Right Ascension is 6 hours, 45 minutes, 09 seconds
http://ircamera.as.arizona.edu/astr_250/Lectures/LECTURE_01.HTM
The total range of right ascension is 24 hrs = 360 deg / 15 deg/hr. The 15 deg/hr conversion factor arises from the rotation rate of the Earth. Declination is analogous to latitude and is measured as north or south of the celestial equator. Declination is usually expressed in degrees, minutes of arc, and seconds of arc.
https://www.universeguide.com/blogarticle/what-is-declination-and-right-ascension
Right Ascension is measure in time, hours, minutes and second. Its stands to reason why, you wouldn't want to use degrees for the measurement as well as it would get confusing. Time is the obvious one because when move east, the time increases, e.g Move from London to Berlin and you add an hour.
https://quizlet.com/6016068/chapter-2-astronomy-flash-cards/
Right ascension counts from the vernal equinox eastward. How is the right ascension measured, what is its equivalent in degrees? Right ascension is measured in hours, minutes and seconds. 24 …
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