The pictures where it was first seen were taken on 28 August 1993, hence the designation. 1991–1994 — The Galileo spacecraft takes the first close-up images of an asteroid (Gaspra) and discovers the first moon (later named Dactyl) orbiting an asteroid (Ida). Asteroid Introduction (This Page) Introduction; Selected Asteroids; Asteroid Summary. 433 Eros 951 Gaspra 4 Vesta 1 Ceres 243 Ida Mean Distance from the Sun (AU*) 1.46 2.21 2.36 2.77 2.86 243 Ida and Dactyl. Discovery and name.
Lets do some math: The distance between the Earth and the Moon is 384,399 kilometers. The asteroid 5535 Annefrank orbits the Sun. This image shows a close-up view of the sun. Magnitude-Distance Formula The image to your right depicts the constellation Orion, one of the most familiar constellations know to the general public. Chronology of Asteroid Exploration; Asteroid Image and Animation Index. Ida was the first asteroid proved to have a tiny moon, Dactyl. Asteroids. This view of the asteroid 243 Ida is a mosaic of five image frames acquired by the Galileo spacecraft's solid-state imaging system at ranges of 3,057 to 3,821 kilometers (1,900 to 2,375 miles) on August 28, 1993, about 3-1/2 minutes before the spacecraft made its closest approach to the asteroid. An earlier version of this graphic incorrectly stated that it orbited Jupiter. Terrestrial Impact Craters; Asteroid Data On-Line at the SBN. ... Vesta makes one orbit of the Sun in 3.63 Earth years, its distance from the Sun varying from 2.15 Astronomical Units ... 21 Lutetia, 243 Ida (and its satellite Dactyl), 253 Mathilde, 433 Eros, 951 Gaspra, 2867 Šteins, 5535 … Ida has a small moon, Dactyl, which was found on February 17, 1994 by Galileo mission member Ann Harch, while examining the delayed image downloads. 243 Ida - Imaged by Galileo on 28 August 1993. These images showed a small satellite, subsequently named Dactyl, in orbit about Ida.
These images showed a … The moon was given the designation S/1993 (243) 1 and later named (243) Ida I Dactyl. Vesta: The Only Naked-eye Asteroid. Corrections & Amplifications: 951 Gaspra orbits the Sun. Asteroid Ida and its Satellite Dactyl in Enhanced Color During its examination of the asteroid Ida, the Galileo spacecraft returned images of a second object, Dactyl--the first confirmed satellite or moon of an asteroid; the much smaller moon is visible to the right of Ida. It was the first binary asteroid to be found and is a member of the Koronis family of asteroids. It is small and rocky. In this image, the asteroid has been rotated so that the illumination appears to come from the upper left. The moon Dactyl orbits the asteroid 243 Ida. Ida was the second asteroid to be observed close-up by a spacecraft, when the Space Probe Galileo took pictures as it flew by on Aug 28, 1993. This view of 253 Mathilde, taken from a distance of about 1,200 km (748 miles), was acquired shortly after the NEAR spacecraft's closest approach to the asteroid. An earlier version of this graphic incorrectly stated that it orbited Jupiter. 243 Ida is a Main belt asteroid with pictures taken by the Galileo spacecraft on August 28, 1993. These pictures showed not only that Ida has a cratered surface, but also that it has a small moon, called Dactyl, which is about 1.6 x 1.2 km in diameter and orbiting 90 km away from the asteroid.
Earth, we are used to seeing the sun from a long distance away. Ejecta Blocks on 243 Ida and on Other Asteroids PASCAL LEE,JOSEPH VEVERKA,PETER C. THOMAS, AND PAUL HELFENSTEIN Center for Radiophysics and Space Research, Cornell University, Ithaca, New York 14853-6801 E-mail: lee@astrosun.tn.cornell.edu MICHAEL J. S. BELTON National Optical Astronomy Observatories, Tucson, Arizona 85719 CLARK R. CHAPMAN Ida is about 58 x 23 x 21 km in size, twice as large as Gaspra, while Dactyl is a mere 1.5 km across. Introduction. In an earlier version of this graphic it incorrectly stated that it orbited Pluto. Gaspra is a member of the Flora family of main-belt asteroids. It has an irregular shape. Close-up photos of asteroid 243 Ida taken by the Galileo spacecraft on Aug. 28, 1993, revealed that Ida had a tiny egg-shaped moon measuring 0.9 by 0.7 mi (1.44 …
Gaspra; Ida; Toutatis; Castalia; Vesta ; Geographos. 243 Ida does not make its own light. Earth asteroids. It was visited on 28 August 1993 by the Galileo spacecraft, which flew within 2400 km of the asteroid. Ida was found by Johann Palisa on September 29, 1884 in Vienna.It is named after Ida, a Cretan nymph in Greek mythology who lived on a mountain that has her name (see Mount Ida, Crete). 243 Ida (/ ˈ aɪ d ə /) is an asteroid in the Koronis family of the asteroid belt.It was discovered on 29 September 1884 by Austrian astronomer Johann Palisa and named after a nymph from Greek mythology.
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