The Súrya Siddhánta, or, An ancient system of Hindu astronomy; followed by the Siddhánta Śiromani

Bhāskarācārya

ISBN 10: 1130429911 ISBN 13: 9781130429916

Verlag: RareBooksClub.com, 2012

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1861 Excerpt: ...surface above whese herizon it may bo at the time: and as the Earth's shadow and the Moon which enters it, are at tho samo distanco from the Earth, there is therefore no call for the correction of the parallax in a lunar eclipse. 4. As the Moon moving eastward enters the dark sha _,.,,. dowofthe Earth: therefore its eastern Tho causo of the directions of the beginning and side is first of all involved in obscurity, end of tho lunar eclipse......,,,. „ and its Western is tho last portion of its disc which cmcrgos from darkness as it advances in its course. 5. As the Sun is a body of vast size, and the Earth insignificantly small iu comparison: the shadow mado by the Sun frem tho Earth is thereforo of a conical form terminating in a sharp point. It extends to a distance considerably beyond that of the Moon's orbit. 6. Tho length of the Earth's shadow, and its breadth at the part traversed by the Moon, may be easily found by proportion. In tho lunar oclipso tho Earth's shadow is northwards or southwards of the Moon when its latitude is south or north. Hence the latitude of the Moon is here to be supposed invorso (i. e. it is to be marked reversly in the projection to find the centre of the Earth's shadow from the Moon.) 7. As the herns of the Moon, when it is half obscured form,,.,, very obtuse angles: and the duration The determmation of the eoverer in the eclipse of the of a lunar eclipse is also very great, Sun and Moon. honce the eoverer of the Moon is much larger than it. 8. The herns of the Sun on tho contrary when half of its disc is obscured form very acute angles: and the duration of a solar eclipse is shert: hence it may be safely inferred that the dimensions of the body causing the obscuration in a solar oclipso aro smaller than and different ...

Über diese Auflage

• Verlag: RareBooksClub.com
• Erscheinungsdatum: 2012
• ISBN 10: 1130429911
• ISBN 13: 9781130429916
• Einband: Rústica
• Anzahl der Seiten: 54