Useful english dictionary. 2012.
Lunar distance (navigation) — For the history of the lunar distance method, see History of longitude. Finding Greenwich time while at sea using a lunar distance. The Lunar Distance is the angle between the Moon and a star (or the Sun). The altitudes of the two bodies are used … Wikipedia
Lunar distance (astronomy) — This article is about the average distance from the Earth to the Moon. For its other use in navigation, see Lunar distance (navigation). Lunar perigee–apogee size comparison In astronomy, a lunar distance (LD) is a measurement of the distance… … Wikipedia
Lunar Escape Systems — were a series of emergency vehicles designed for never flown long duration Apollo missions. Because these missions were even more hypothetical than the planned canceled Apollo missions, the designs were never constructed.As NASA planned for… … Wikipedia
Lunar Roving Vehicle — This article is about the Apollo rovers. For the Soviet robotic rovers, see Lunokhod program. For the planned Chinese robotic rover, see Chang e 3. The Lunar Roving Vehicle (LRV) or lunar rover was a battery powered four wheeled rover used on the … Wikipedia
Lunar soil — Moondust redirects here. For the Commodore 64 video game, see Moondust (video game). For the Psychoactive drug, see Phencyclidine. Bootprint on lunar soil … Wikipedia
lunar distance — (LD) the average distance between the Earth and the Moon (technically, the length of the semimajor axis of the Moon s orbit). This unit, equal to about 384 401 kilometers or 238 855 miles, is used to measure the miss distances of asteroids… … Dictionary of units of measurement
lunar star — noun : a star whose geocentric distances from the moon are given in nautical almanacs and are used in computing longitudes … Useful english dictionary
Distancia lunar — Saltar a navegación, búsqueda Para la historia del método de las distancias lunares, véase Historia de la navegación astronómica. Cálculo de la hora en Greenwich en el mar por el método de las distancias lunares. La distancia lunar es el ángulo… … Wikipedia Español
On Sizes and Distances — [of the Sun and Moon] (Περὶ μεγεθῶν καὶ ἀποστημάτων – Peri megethon kai apostematon) is a text by the ancient Greek astronomer Hipparchus. It is not extant, but some of its contents have been preserved in the works of Ptolemy and his commentator… … Wikipedia
Aristarchus On the Sizes and Distances — Aristarchus s 3rd century BC calculations on the relative sizes of, from left, the Sun, Earth and Moon, from a 10th century CE Greek copy On the Sizes and Distances (of the Sun and Moon) (Περὶ μεγεθῶν καὶ ἀποστημάτων [ἡλίου καὶ σελήνης]) is… … Wikipedia
