A.error of perpendicularity B.side error C.prismatic error D.centering error
A.the equator to the elevated pole B.your horizon to your zenith C.your zenith to the elevated pole D.the geographical position of the Sun to the elevated pole
A.the Sun is at maximum declination north or south B.a planet crosses the external plane of the ecliptic C.the Sun is between the Earth and a planet D.two planets are in line
A.when the Moon is low in the sky at rising or setting B.at the new Moon phase C.when taking Moon sights during daylight D.when the terminator is nearly vertical
A.is nearest to the Earth B.is farthest from the Earth C.is on the opposite side of the Earth from the Moon D.and Moon and Earth are in line
A.cluster B.shower C.constellation D.galaxy
A.the Sun，Earth，and Moon are at right angles B.the Sun's declination is 0°and is moving south C.an inferior planet is at the maximum angle to the line of sight to the Sun D.the Earth is between a planet and the Sun
A.be circumpolar B.have a declination equal to or greater than your latitude C.have a GHA of 180° D.have the SHA equal to or less than the LHA
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.Hercules B.Cygnus C.Aquila D.Capricorn
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