Translation of the Súrya Siddhánta |
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Common terms and phrases
2nd equation additive months AHARGANA AKSHA apsis argument of latitude Aries Armillary sphere ascensional difference astronomers ASURAS BHAGOLA BHUJA called centre Chapter circumference cosine daily motion degrees diameter digits disc diurnal circle diurnal motion divide the product DRIKKARMA Earth eastern horizon ecliptic elapsed epicycle equal equinoctial shadow excentric GHATIKÁS GHATIS given place Gnomon heliacal rising heliacally Hence higher apsis horoscope hypothenuse KALPA KENDRA KOȚI KUJYA LAGNA latitude longitude lunar days lunar month mean place meridian MERU minutes Moon's multiplied NAKSHATRA node nonagesimal north and south north or south orbit PALABHA parallax planet pole prime vertical quotient radius rectified remainder revolutions revolve rising periods S'ANKU S'ÍGHROCHCHA S'LOKA sÁVANA sidereal signs sine of amplitude sine of declination solar sphere star STHITYARDHA subtractive days Sun and Moon sun-rise Sun's TADDHRITI terrestrial days TITHI triangle true place VALANA versed sine YOJANAS YUGA zenith distance
Popular passages
Page 135 - As the conjugate diameter is to the transverse, so is the square root of the difference of the squares of the...
Page 42 - SAMA-KALA places of the Sun and the Moon : But increase the place of the node (at midnight) by its change, if the instant of the syzygy be before midnight, or diminish it if it be after midnight. What covers the Sun and 9. The Moon being like a cloud in the Moon in their eclipses. a lower sphere covers the Sun (in a solar eclipse) ; but in a lunar one the Moon moving eastward enters the Earth's shadow and (therefore) the shadow obscures her disc.
Page 177 - ... is not eclipsed. At the change of the moon, it often happens that an observer, placed at the centre of the earth, would find the sun, when far from the zenith, obscured by the intervening body of the moon; whilst another observer on the surface of the earth will not, at the same time, find him to be so obscured, as the moon will appear to him to be depressed from the line of vision extending from his eye to the sun. Hence arises the necessity for the correction of parallax in celestial longitude...
Page 251 - FIG. 24 or (a) where the positive or negative sign is to be taken according as the polygon has been described in the positive or negative direction.
Page 112 - ... water, space, and fire, is of a spherical shape, and being surrounded by planets, such as the Moon, Mercury, Venus, the Sun, Mars, Jupiter, and Saturn, and by the orbits of stars« stands firm in the midst of space by its own power, without any other aid. This, he says, is a well-ascertained fact. Like the pollen in the Kadamba flower, on its surface are countries, mountains, gardens, and buildings, where Räksasas, men, Devas.
Page 177 - ... another observer on the surface of the earth will not, at the same time, find him to be so obscured, as the moon will appear to him to be depressed from the line of vision extending from his eye to the sun. Hence arises the necessity for the correction of parallax in celestial longitude and parallax in latitude in solar eclipses, in consequence of the difference of the distance of the sun and the moon. When the sun and the moon are in opposition, the earth's shadow envelopes the moon in darkness...
Page 116 - In those lower regions dwell the race of serpents [who live] in the light shed by the rays issuing from the multitude of the brilliant jewels of their crests, together with the multitude of Asuras; and there the Siddhas enjoy themselves with the pleasing persons of beautiful females, resembling the finest gold in purity.
Page 119 - ... an efficacy that if her name be listened to, if she be sought to be seen, if seen, touched or bathed in, if her waters be tasted, if her name be uttered, or brought to mind, and her virtues be celebrated, she purifies in many ways thousands of sinful men [from their sins]. 40. And if a man make...
Page 4 - ... are unequal to each other, ,in consequence of the circumferences of their orbits ; and by this unequal motion, they pass the signs...
Page 23 - ... by 1800 (the number of minutes which each sign of the ecliptic contains in itself).