 | Elias Loomis - 1897 - 264 oldal
...sun. 110. The Radius Vector of the EartKs Orbit describes equal Areas in equal Times. — The straight line drawn from the centre of the sun to the centre of the earth is called the radius vector of the earth's orbit. If we suppose S to represent the place of the sun,... | |
 | Ellwood Leitheiser Kemp - 1915 - 336 oldal
...metal disk to represent a part of the sun's surface. A rod may be fixed to this to represent a line from the centre of the sun to the centre of the earth, the line of direct ray. When this has reached its most northerly point as the globe is moved, a rotation... | |
 | Francis Baily - 1827 - 340 oldal
...planet is its distance in degrees from the place of the perihelion. The radius vector is an imaginary line drawn from the centre of the sun, to the centre of the planet, in any part of its orbit. The motion of a planet in its orbit is always most rapid when in... | |
 | Ivar Dedekam - 2004 - 90 oldal
...latitude are called the Tropic of Cancer and the Tropic of Capricorn. The point where an imaginary line from the centre of the sun to the centre of the earth intersects the earths surface is called the sun's GP (Geographic Position). GPs always move towards... | |
 | AHMADUL AMEEN - 2006 - 518 oldal
...angle between the projection of P on the equatorial plane and the projection on that plane of a line from the centre of the sun to the centre of the earth. The sun's declination 5 is the angle between a line connecting the centre of sun and earth and the... | |
 | Sir Robert Stawell Ball - 1909 - 274 oldal
...discovered by Kepler, and has been enunciated in the second law, which may be thus stated. The straight line drawn from the centre of the Sun to the centre of the planet moves over equal areas in equal times. To illustrate this law with the present figure I take... | |
| |
In this case, it is obvious that the plane of the circle of illumination would be perpendicular to a line drawn from the centre of the sun to the centre of the earth... 
