A new treatise on astronomy, and the use of globes : in two parts ... (1866)
M'Intire, James, 1799-1879 · New York : Published by A.S. Barnes & Burr ... · leaf 80
act calculation, the rotation of theearth on its axis, or whatever would affect an accurate result,must be taken into consideration. On account of the neai-ness of Mercury to the sun, and conse-quent small difference in their parallaxes, his transits are notsuitable for determining the solar… … In an exact calculation, what must be taken into consideration ? Wliyare the transits of Mercury not suitable for def ermininjj the solar DaraUax I 4 74 ASTRONOMY. When the planet P is at its inferior conjunption, it willbe invisible, because its dark side is turned towards Ethe earth, unless it be…
Astronomy
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