The elements of theoretical and descriptive astronomy, for the use of colleges and academies (1901)
White, Charles J. (Charles Joyce), 1839-1917 · New York, J. Wiley & sons; · leaf 44
l circle of a fixedstar, which is supposed to have thesame altitude when it reaches A, westof the meridian, which it had at A, east of the meridian. Xow, in the two triangles PAZ, PAZ, we have PZ common,PA equal to PA (since the polar distance of a fixed star re-mains constant), and ZA equal to ZA,… … 40 EQUATORIAL. say, then, in general, that equal altitudes of a fixed star corre-spond to equal angular distances from the meridian. Now, let the telescope be directed to some fixed star east of themeridian, and let the reading of the horizontal circle be taken.When the star is at the same…
Astronomy
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