This question is about finding the elevation and bearing of a given star at a particular time at Latitude 52N.
I look up the RA and Declination of my star. How do I calculate its bearing and elevation at hourly intervals?
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Sign up to join this communityThis question is about finding the elevation and bearing of a given star at a particular time at Latitude 52N.
I look up the RA and Declination of my star. How do I calculate its bearing and elevation at hourly intervals?
The Right Ascension of a star is fixed (ignoring precession of the equinoxes). What you need or want to know is the "sidereal time" - that is to say the "time" based on which RA is at your local meridian at a given time. The sidereal day is slightly shorter than the mean solar day (ie the 24 hour day) and so sidereal and solar times drift apart - only being equivalent at the vernal equinox.