celestial sphere correct answers the apparent surface of the imaginary sphere on which celestial bodies appear to be projected. north celestial pole, star trails, zenith, meridian, celestial equator, RA and DEC



meridian correct answers an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator



north celestial pole correct answers The location on the celestial sphere directly above the Earth's northern rotation pole.



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