A parallax correction is NOT applied to observations of the().
A、stars
B、Moon
C、Sun
D、Planets
A、stars
B、Moon
C、Sun
D、Planets
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、the angle between the horizontal and the line of sight to the visible horizon B、index error C、parallax D、terrestrial refraction
A、horizontal parallax decreases B、observer's height above sea level increases C、humidity of the atmosphere decreases D、altitude of the body decreases
A、Errors due to unusual parallax are eliminated B、The same body can be used for a fix from observations separated by several minutes C、The declination is the only information needed from the almanac D、The semidiameter correction of the sextant altitude is eliminated
A、A675>A312>A13>A10>A5; B、A675>A312>A13>A5>A10; C、A675>A13>A10>A312>A5; D、A675>A13>A312>A10>A5; E、A13>A312>A675>A10>A5。