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A.parallax and personal error B.inaccuracies in the reading and reference level C.visibility and magnitude D.All of the above are correct
A.is most accurate before sunrise B.is most accurate after sunset C.should only be observed when the Sun's lower limb is above the horizon D.is most accurate when the Sun's center is observed on the visible horizon
A.Hercules B.Cygnus C.Aquila D.Capricorn
A.superior conjunction B.inferior conjunction C.opposition D.None of the above; the elongation will never be zero
A.exhibits a change in magnitude B.has a changing declination C.is increasing in SHA D.is also known as a red giant
A.double star B.variable star C.nova D.nebula
A.on the prime vertical B.a latitude line C.a longitude line D.of no special significance
A.irregularities in the daily rotational rate of the Sun B.the space motion of the solar system C.the precession of the equinoxes D.the use of different reference points
A.4 minutes B.8 minutes C.12 minutes D.16 minutes
A.positive correction B.dip error C.negative correction D.semidiameter error
A.Mars B.the Moon C.Jupiter D.All of the above
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