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2 edition of The size, shape, density, and albedo of Ceres from its occultation of BD+8ê471 found in the catalog.

The size, shape, density, and albedo of Ceres from its occultation of BD+8ê471

The size, shape, density, and albedo of Ceres from its occultation of BD+8ê471

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Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English


Edition Notes

StatementR.L. Millis ... [et al.]
SeriesNASA contractor report -- NASA CR-177089
ContributionsMillis, R. L, United States. National Aeronautics and Space Administration
The Physical Object
FormatMicroform
Pagination1 v
ID Numbers
Open LibraryOL14985457M

Earthshine data show a weaker seasonal dependence than CERES data, which could bring the reliability of the earthshine measurements into question. However, the largest single source of the seasonal albedo variability observed in the CERES data is accounted for by . I used disk-resolved images of Ceres, taken with the NIRC2 adaptive-optics (AO) fed camera at the W. M. Keck telescope in by my Ph.D. supervisor Christophe Dumas, to study the spin orientation, shape, size of Ceres, and to produce the first maps of its surface in the near-infrared.

Ceres is the largest object in the asteroid belt, which lies between Mars and Jupiter. [10] The Kuiper belt is known to contain larger objects, including Pluto, Quaoar, and Orcus, while more distant Eris, in the scattered disc, is the largest of all these bodies. [38]The mass of Ceres has been determined by analysis of the influence it exerts on small asteroids. This constant albedo is also used in the Coupled Ocean–Atmosphere Response Experiment (COARE) bulk flux algorithm. This study considers the impacts of using the more recently available NASA Cloud and the Earth’s Radiant Energy System (CERES) albedo product for .

The image above shows Earth’s average albedo for March , measured by the Clouds and Earth’s Radiant Energy System (CERES) instrument aboard NASA’s Terra satellite. Albedo is the fraction of incoming sunlight that our planet reflects back to space. If Earth was covered in ice like a giant snowball, its albedo would be about Ceres (/ ˈ s ɪər iː z /; minor-planet designation: 1 Ceres) is the largest object in the asteroid belt that lies between the orbits of Mars and Jupiter, slightly closer to Mars' orbit. Its diameter is approximately kilometers ( miles), making it the largest of the minor planets within the orbit of is the 33rd-largest known body in the Solar System and the only dwarf.


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The size, shape, density, and albedo of Ceres from its occultation of BD+8ê471 Download PDF EPUB FB2

The occultation of BD+8° by Ceres on 13 November was observed photoelectrically at 13 sites in Mexico, Florida, and the Caribbean. These observations indicate that Ceres is an oblate spheroid having an equatorial radius of ± km and a polar radius of ± by: Get this from a library.

The size, shape, density, and albedo of Ceres from its occultation of BD+84̊ [Robert L Millis; United States. National Aeronautics and Space Administration.;]. The The size, shape, density, and Albedo of Ceres from its occultation of BD+8° Robert Lowell Millis, Lawrence Harvey Wasserman, +39 authors D.

Leibow Physics. The first Trojan asteroid occultation, the occultation of HIP A by () Diomedes, was successfully observed from Japan on November 7, From its occultation timings at six sites including two video observations, an elongated occultation silhouette of (±28 km)×(96±5 km), at position angle PA=±4° was by: 5.

This method has been used once previously to measure the size and shape of Ceres, when data from a occulation was used to determine that Ceres was an oblate spheroid (slightly flattened sphere), with an equatorial diameter of km and an oblateness of (i.e.

its diameter measured on the north-south access is 5% smaller than its Author: Joe Bauwens. The mass of Ceres, which accounts for more than one-third the total mass of the main asteroid belt, is about × 10 20 kg, and its density is grams per cubic cm (about two-thirds that of the Moon).

Ceres’ shape and density are consistent with a two-layer model of a rocky core surrounded by a thick ice mantle. Ceres rotates once in Millis, R. Wasserman, L. H., Franz, O. et al. () The size, shape, density and albedo of Ceres from its occultation of BD + 8° Icarus, 72, – Millis, R.

L., Wasserman, L. H., Franz, O. G., Nye, R. A., Oliver, R. C., Kreidl, T. J., et al. The size, shape, density, and albedo of Ceres from its occultation of BD+8 deg Icarus, 72, – ADS CrossRef Google Scholar.

The size, shape and density of Chariklo are important parameters to constrain the origins of both the main b ody and its rings. Moreover, topographic features and/or an ellipsoidal shape may have. Although Makemake's size (1, ± 60 km) and albedo are roughly known, there has been no constraint on its density and there were expectations that it could have a Pluto-like atmosphere.

Ceres, formally 1 Ceres, is the only dwarf planet in the inner Solar System, and the largest asteroid.

[19] [20] [21] It is a rock–ice body some km ( mi) in diameter, and though the smallest identified dwarf planet, it constitutes a third of the mass of the asteroid belt.[22] [23] Discovered on 1 January by Giuseppe Piazzi, [24] it was the first asteroid to be identified, though.

Ceres (IPA /ˈsiːriz/, Latin: Cerēs), also designated 1 Ceres or (1) Ceres (See Minor Planet Names), is the smallest dwarf planet in the Solar System and the only one located in the main asteroid belt.

Its name is derived from the Roman goddess Ceres — the goddess of growing plants and of motherly love. It was discovered on January 1,by Giuseppe Piazzi.

Start studying Unit 2 Earth Science. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. the color and density of the rock. B) how the rock formed. C) the size, shape, and pattern of the rock's grains.

D) how many minerals the rock contains. C) the size, shape, and pattern of the rock's grains. Ceres is the largest body in the asteroid belt with a radius of approximately km. In part due to its large mass, Ceres more closely approaches hydrostatic.

Szebehely, Theory of orbits. The restricted problem of three bodies, Academic Press, D. Schuerman, The restricted three-body problem including radiation pressure, The Astrophysical Journal, () – Ceres / ˈ s ɪər iː z / (minor-planet designation: 1 Ceres) is the largest object in the main asteroid belt that lies between the orbits of Mars and a diameter of km ( mi), Ceres is both the largest of the asteroids and the only unambiguous dwarf planet currently inside Neptune's orbit.

It is the 25th-largest body in the Solar System within the orbit of Neptune. N NATIONAL AERONAUTICS AND SPACE AOMINISTRATION RESEARCH AND TECHNOLOGY RESUME and Albedo of Ceres from its Occultation of BD-t8O47', Ica Weissman, P.R., A'Hearn, M.F., McFadden, L.A.

and Rickman, H.,Evolution of Comets into Asteroids, to appear in "Asteroids", book based on "Asteroids II", meeting in Tucson. Due to its small size, Ceres would have cooled early in its existence, causing all geological resurfacing processes to cease. An occultation of a star by Ceres observed in Mexico, Florida and across the Caribbean on 13 November shape, density, and albedo of Ceres from its occultation of BD+8 deg ".

Icarus 72 (3): – A world formed in the inner solar system with a density of g/cm# would be very unlikely to have a magnetic field because in order for a magnetic field to exist, you need a region of electrically conducting fluid and an energy source to drive the motion of the fluid, and a world with a density would be made of all rock (no iron core), making.

Marcialis, R.L. () Correlation of composition with albedo on Pluto: past results and new problems. Pluto and Charon, Flagstaff, AZ, July 10–14 (Abstract). Cambridge Core - History of Astronomy and Cosmology - Asteroids - by Thomas H. Burbine."The Size, Shape, Density, and Albedo of Ceres from Its Occultation of BD +8°," The Astronomical Journal (AAS), Vol.

99, No. 5, May Parker, D.C., J.D. Beish, C.E. Hernandez,H. Cralle, and D.M. Troiani, "The Mars Apparition -- A Preview," J.A.L.P.O., Vol. 34, No. 1, February Varuna, provisional designation WRis a large trans-Neptunian object and a possible dwarf planet in the Kuiper was discovered in December by American astronomer Robert McMillan during a Spacewatch survey at the Kitt Peak National has an elongated shape due to its rapid is named after the Hindu deity Varuna, one of the oldest deities.