The Correctly Established Doctrine of Brahma, Volume 2 (1966) - Page 13


Another method for determining the altitude time time elapsed since sunrise and the hour angle time from meridian transit	322
Yet another method	324
The versed sine Utkramajya: the sagitta or vertical distance of an arc of an arc greater than ninety degrees, and the arc of a versed sine greater than the radius	326
Calculation of the zenith distance and altitude at midday, calculation of the midday shadow, calculation of the central shadow, and the various methods for calculating the "hriti" a specific algebraic divisor used in spherical trigonometry	328
Calculation of the gnomon at the prime vertical Samashanku: the gnomon's shadow when the sun is on the east-west line	332
Another method for calculating the prime vertical gnomon	334
Calculation of the hypotenuse of the shadow on the prime vertical circle	336
Calculation of the gnomon at the intermediate points the "corner" gnomon at 45 degrees from the cardinal points	338
Determining the equinoctial shadow Palabha: the shadow of a vertical gnomon at noon on the day of the equinox from two known "bhujas" polar latitudes or base sides	347
Another method for determining the equinoctial shadow	349
The position of the equinoctial shadow and the tips of the shadow in a desired circle	350
Determining the declination Kranti: the sun's distance north or south of the celestial equator from the bhuja and the shadow	351
Determining the position of the Sun from the sine of declination	353
Specific details regarding the Sun's gnomon in the context of the elevation of the Moon's horns the phases/crescent of the moon	356
The line of rising and setting	357
Calculation of the base of the gnomon	359
Conclusion of the chapter	360

4. Chapter on Lunar Eclipses: 363-397


Purpose of the commencement of a lunar eclipse	363
Calculation for the specific moment of occurrence	365
Calculation of the celestial latitude Shara: the angular distance of a planet from the ecliptic at the end of the lunar day	367
The diameters of the disks of the Sun, Moon, and the Earth's shadow referred to here as "Tamas" or darkness	370
The magnitude of the eclipse Grasamana: the portion of the celestial body obscured	373
Calculation of the half-duration of the eclipse and the half-duration of total obscuration	374
Correction making "true" or "sphuta" of the half-durations of the eclipse and total obscuration	377
Calculation of the time of the beginning and end of totality immersion and emersion	379
Calculation of the obscured portion at a desired time	380
Calculation of the time from a desired obscured portion	382
Regulations regarding the first contact and other phases	384
Calculation of the deflection due to latitude Akshaja Valana: deflection caused by the observer's terrestrial position	386
Calculation of the deflection due to declination Ayana Valana: deflection caused by the obliquity of the ecliptic	389
The corrected or true deflection	392