A Compleat System of Astronomy ...J. Wilcox, 1742 |
Altres edicions - Mostra-ho tot
A Compleat System of Astronomy...: Containing the Description & Use of the ... Charles Leadbetter Visualització completa - 1728 |
Frases i termes més freqüents
Achronical Afcendent Aftronomical Aldebaran alfo Anno anſwering Aphelion Argument of Latitude Axis Azimuth becauſe Center Circle of Pofition Cofmical Colure Complement Conftellation Cufp Declination North Degr Degrees 32 Minutes Difference Diſtance Diurnal Motion Dominical Letter draw Eaft Earth Ecliptic Epact Equation Equinoctial Example fame fhall fhew find the Angle firft firſt fixed Stars fubtract fuppofe given greateſt half Horizon Horizontal Parallax Houfe Hours Houſe Interfection Invifible laft Latitude Logarithm London Longitude mean Anomaly Meridian Mid-heaven Moon Moon's muſt Nonagefime Degree Noon North Pole Number obferve Oblique Afcenfion oblique Circle oppofite paffing Parallax Parallel Planets Pleiades Point Primitive Circle PROB Radius reprefent rifing and fetting Right Afcenfion Secant Seconds Semidiameter ſetting Signs Sine South Sun Rifes Sun Sets Sun's Altitude Sun's Declination Sun's Place Syftem Table Tangent thefe theſe thofe Tropic Vifible Weft whofe ΙΟ
Passatges populars
Pàgina 472 - Parts in 10, of the Space between us and the Fixed Stars can receive no greater Light from the Sun, or any of the Stars, than what we have from the Stars in a clear Night.
Pàgina 416 - Prove that the product of the sum and difference of any two numbers is equal to the square of the first, minus the square of the second.
Pàgina 20 - Academy for the year 1734; the subject related to the inclination of the planes of the orbits of the planets to the plane of the Sun's equator.
Pàgina 15 - A great circle, whose poles are the poles of the •world. It divides the globe into two equal parts, the northern and southern hemispheres.
Pàgina 22 - Kepler had discovered, that the planets move in elliptical orbits, describe equal areas in equal times, and that the squares of their periodical times are as the cubes of their distances.
Pàgina 25 - IT is well known, that the longitude of any place is an arch, of the equator, intercepted between the firft meridian and the meridian of that place ; and that this arch is proportional to the quantity of time that the fun requires to move from the one meridian to the other ; which is at the rate of 24 hours for 360 degrees; one hour for 15 degrees; one minute of time for.
Pàgina 35 - ... equal to the sum of the apparent semidiameters of the sun and moon...
Pàgina 29 - That every Body will continue in its State, either 'of Reft or Motion, uniformly forward in a right Line, unlefs it be made to change that State by fome Force impreflcd upon it.
Pàgina 7 - Followers iuppofed them, to be Meteors, or Exhalations, fet on Fire in the higheft Region of the Air : The modern Aftronomers have found them to be above the Orbit of the Moon, but yet to defcend fo low, as to move in the Region of the Planets.