More data will come online, from satellite images to sensor readings.
The mountainous configuration of the moon's surface was there first described, and the so-called "phosphorescence" of the dark portion of our satellite attributed to its true cause--namely, illumination by sunlight reflected from the earth.
The Methuen Treaty, signed on the 2 7th of December 1703, detached Portugal from the French alliance, and made her for more than 50 years a commercial and political satellite of Great Britain.
Satellite photos can uncover those who would transgress the rules.
Carpenter, The Moon, Considered as a Planet, a World and a Satellite (London, 1903; fine illustrations); E.
Cassini discovered Saturn's fifth satellite (Rhea) in 1672 with a telescope of 35 ft., and the third and fourth satellites in 1684 with telescopes made by Campani of looand 136-ft.
When the satellite is in the opposite direction from the sun, the same action tends to draw the primary away from the satellite.
Lucna, the shining one, lucere, to shine, for the moon, but preserves the word in mensis, month; the ultimate root for "moon" and " month " is usually taken to be me-, to measure, the moon being a measurer of time), in astronomy, the name given to the satellite of any planet, specifically to the only satellite of the earth.
SYNODIC PERIOD, in astronomy, the apparent period of a planet or satellite when its revolution is referred to the line passing through the earth or the sun.
It does in fact prevail among the satellite-families of our acquaintance, and presumably in stellar combinations as well.
ELONGATION, strictly "lengthening"; in astronomy, the apparent angular distance of a heavenly body from its centre of motion, as seen from the earth; designating especially the angular distance of the planet Mercury or Venus from the sun, or the apparent angle between a satellite and its primary.
Discovery of its satellite, on the 10th of October following, was a consequence of the perfect figure and high polish of his 2-ft.
1892, proved representative of a small inner satellite, invisible with less perfect and powerful instruments than the Lick 36-in.
(?) and viii., and the satellite of Neptune.); while, to make the argument complete, the planets, so far as they can be observed, rotate on their axes in the same manner.
But the same relation does not hold of a satellite the mass of whose primary is not regarded as an absolutely known quantity, or of a binary star.
We learn that if the orbital motion of a planet, or a satellite, were arrested, the body would fall into the sun, or into its primary, in the fraction 0.1768 of its actual periodic time.
In both cases no extraneous cause can be assigned; the period seems to be inherent in the star itself and not to be determined by the revolution of a satellite (no variability of the line-of-sight motion of Mira has been found, so that it is probably not accompanied by any large companion).
When the orbit of the satellite is inclined to that of the primary planet round the sun, the action brings about a change in the plane of the orbit represented by a rotation round an axis perpendicular to the plane of the orbit of the primary.
Did heaven need satellite television?
Among the problems of theoretical astronomy we may assign the first place to the determination of orbits, which is auxiliary to the prediction of the apparent motions of a planet, satellite or star.
When the latter is between its primary and the sun, the attraction of the latter tends to draw the satellite away from the primary.
If we conceive a pole to each of these orbits, determined by the points in which lines perpendicular to their planes intersect the celestial sphere, the pole of the satellite orbit will revolve around the pole of the planetary orbit precisely as the pole of the earth does around the pole of the ecliptic, the inclination of the two orbits remaining unchanged.
The action of the sun alone would completely throw them out of these planes as each satellite orbit would rotate independently; but the effect of the mutual action is to keep all of the planes in close coincidence with the plane of the planet's equator.
He first brought the revolutions of our satellite within the domain of Kepler's laws, pointing out that her apparent irregularities could be completely accounted for by supposing her to move in an ellipse with a variable eccentricity and directly rotatory major axis, of which the earth occupied one focus.
When Lord Bute was prime minister this legal satellite used, says Dr Johnson, to go on errands for him, and it is to Wedderburn's credit that he first suggested to the premier the propriety of granting Johnson a pension.
On the north-east the great coal-field of Northumberland and Durham, traversed midway by the Tyne, supports the manufactures of Newcastle and its satellite towns, and leaves a great surplus for export from the Tyne ports.
Immersio, dipping), the act of being plunged into a fluid, or being overwhelmed by anything; in astronomy, the disappearance of a heavenly body in the shadow of another, especially of a satellite in the shadow of its primary.
When the satellite is in quadrature the convergence of the lines of attraction toward the centre of the sun tends to bring the two bodies together.
Count KhuenHedervary, as Ban of Croatia, reduced political corruption to a fine art and governed by playing off Croat and Serb against each other, and fanning the dying flames of religious bigotry: while at the same time Serbia under King Milan was reduced to the position of a mere satellite of Vienna.