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Topic: Cybele asteroids

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	65 Cybele
		As a C-type asteroid it is dark in color and carbonaceous in composition.
		First stellar occultation by Cybele was observed on October 17, 1979 in the Soviet Union.
		A diameter of 230 km was derived, closely matching the diameter of 237 km determined by the IRAS satellite.
	www.xasa.com /wiki/en/wikipedia/6/65/65_cybele.html (114 words)

	Asteroid
		Asteroids are commonly classified into groups based on the characteristics of their orbits and on the details of the spectrum of sunlight they reflect.
		Cybele asteroids have a mean orbital radius between 3.27 AU and 3.7 AU, an eccentricity less than.3, and an inclination less than 25°.
		Asteroids are classified into spectral types by their optical spectrum, which corresponds to the composition of the asteroid's surface material.
	www.guajara.com /wiki/en/wikipedia/a/as/asteroid.html (2523 words)

	Minor planet
		Nysa asteroids have a mean orbital radius between 2.41 AU and 2.5 AU, an eccentricity between 0.12 and 0.21, and an inclination between 1.5° and 4.3°.
		Alinda asteroids have a mean orbital radius of 2.5 AU and an eccentricity between 0.4 and 0.65 (approximately).
		Eos asteroids have a mean orbital radius between 2.99 AU and 3.03 AU, an eccentricity between 0.01 and 0.13, and an inclination between 8° and 12°.
	www.starrepublic.org /encyclopedia/wikipedia/m/mi/minor_planet.html (1980 words)

	asteroid
		Most asteroids move in orbits that are somewhat more inclined and eccentric than those of the major planets (with the exception of Pluto) — the orbit of an average main-belt asteroid being inclined at about 10° to the plane of the ecliptic with an eccentricity of about 0.15.
		Low-albedo asteroids are generally found in the outer half of the asteroid belt, while higher-albedo objects tend to occupy the inner half.
		The distribution of the various classes throughout the asteroid belt is highly structured, suggesting that many asteroids formed at or near their present distances from the Sun and are representative of the composition of the solar nebula (not including hydrogen and helium) at these locations.
	www.daviddarling.info /encyclopedia/A/asteroid.html (1799 words)

	Ephemerides of the Largest Asteroids
		However, because the asteroids have relatively little mass and are subject to perturbations by other asteroids the actual uncertainties in their mean motions are likely to be a few tenths of an arc second per century, 3 Juno is a particular case in point.
		The U-B B-V color-color diagram for 750 asteroids from the SOARD database.
		The osculating equatorial elements for the asteroids on Dec. 17, 1997 (JD 2450800.5).
	aa.usno.navy.mil /ephemerides/asteroid/astr_alm/asteroid_ephemerides.html (9595 words)

	65 Cybele
		As a C-type asteroid it is dark in color and carbonaceous in composition.
		First stellar occultation by Cybele was observed on October 17, 1979 in the Soviet Union.
		A diameter of 230 km was derived, closely matching the diameter of 237 km determined by the IRAS satellite.
	www.starrepublic.org /encyclopedia/wikipedia/6/65/65_cybele.html (95 words)

	What is an Asteroid? from The Fact Train
		Asteroids were first observed with telescopes in the early 1800s.
		Most asteroids are located in the asteroid belt, a region located between the planets Mars and Jupiter.
		In the asteroid belt there are twenty-six asteroids larger than 124 miles in diameter, traveling along with hundreds of thousands of smaller asteroids.
	www.facttrain.com /asteroid.html (367 words)

	Asteroids
		Asteroids, sometimes called "minor planets," are composed of rock, metal, or both.
		The main asteroid belt is defined as reaching from 2.2 to 3.3 AU (1 AU is the average distance of the Earth from the Sun).
		Since some asteroids were melted, others merely heated, and others left cold, this implies that the distribution of radioactive elements was not uniform in the primeval solar system nebula.
	www.pibburns.com /catastro/asteroid.htm (1656 words)

	Asteroids (Site not responding. Last check: 2007-10-29)
		Asteroids are primoridal objects left over from the formation of the Solar System (see schematic diagram of nomenclature and relationships among asteroids, Edgeworth-Kuiper bodies, and comets and their different subgroups by William K. Hartmann).
		Indeed, if all asteroids down to the size of meter- or yard-sized boulders or less were combined together, the resulting object would measure less than 1,300 to 1,500 km (810 to 930 miles) across, which is less than one third to one half the diameter of the Earth's Moon.
		Smaller asteroids, however, should be solid bodies because the shattered fragments of an asteroidal collision should easily escape their feeble gravity and fly off into space instead of settling back on their surface as regolith.
	home.xtra.co.nz /hosts/Wingmakers/Asteroids.html (1461 words)

	Cybele group
		A group of asteroids in the outer part of the main asteroid belt at a mean distance from the Sun of 3.4 AU, corresponding roughly to a 4:7 resonance with Jupiter.
		Along with the Jupiter trojans, the Hilda group, and Thule, the Cybeles are thought to be remains of the original asteroid population that have remained in more-or-less the same orbital locations since the dawn of the solar system.
		The prototype, (65) Cybele, was discovered in 1861 by the German astronomer Wilhelm Tempel.
	www.daviddarling.info /encyclopedia/C/Cybele_group.html (167 words)

	Asteroid Masses
		The perturbation of asteroids on Mars and the Earth are the largest poorly modeled problem in modern planetary ephemerides.
		The asteroids were not always considered to be a type of body separate from those of the other planets.
		Hilton, J.L. 1997, The Mass of the Asteroid 15 Eunomia From Observations of 1313 Berna and 1284 Latvia, Astron.
	aa.usno.navy.mil /hilton/asteroid_masses.htm (1082 words)

	Sea and Sky's Tour of the Solar System: Asteroids & Meteroids
		Others think that the asteroids are composed of the leftover material from which the Solar System was originally formed.
		Not all asteroids are confined to the asteroid belt.
		And chances are that if an asteroid were discovered to be on a collision course with Earth, we would be able to use our technology to stop it.
	www.seasky.org /solarsystem/sky3k.html (646 words)

	Bibliographie des DLR (LIDO) (Site not responding. Last check: 2007-10-29)
		The observed asteroids cover a large range of diameters between 30 und 150 km, with focus on smaller sizes.
		A considerable fraction of the observed asteroids belongs to the intermediate PD- and DP-types.
		The asteroid 3675 Kemstach was identified as a possible S-type, due to a steep slope (12%/100 nm) for wavelengths shorter than 740 nm and a beginning absorption band behind 760 nm.
	www2.dlr.de /lido/WP/2001/1840302001.html (148 words)

	A/CC Catalog: Asteroids 1-499 (Site not responding. Last check: 2007-10-29)
		Ceres is the largest of the Main Belt asteroids in mass and diameter, with a width exceeding 900 km.
		This was the second asteroid binary discovered, and the first to be resolved as separate objects by Earth-based observations (from the Canada-France-Hawaii Telescope in infrared using adaptive optics).
		It is an S-type Main Belt asteroid with a diameter estimated at 67.6 km.
	www.hohmanntransfer.com /cat/an1.htm (1707 words)

	65 Cybele -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-29)
		65 Cybele (sib'-a-lee) is one of the largest (Any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)) asteroids in the (Click link for more info and facts about main belt) main belt.
		First stellar (One celestial body obscures another) occultation by Cybele was observed on October 17, 1979 in the (A former communist country in eastern Europe and northern Asia; established in 1922; included Russia and 14 other soviet socialist republics (Ukraine and Byelorussia an others); officially dissolved 31 December 1991) Soviet Union.
		During the same occultation, a hint of a possible 11 km wide (Man-made equipment that orbits around the earth or the moon) satellite was detected.
	www.absoluteastronomy.com /encyclopedia/6/65/65_Cybele.htm (579 words)

	Asteroids (Site not responding. Last check: 2007-10-29)
		This representation of the physical properties of interesting asteroids includes most of the asteroids larger than about 200 km in diameter.
		They are portrayed in their correct relative sizes and shapes (the limb of Mars is shown for comparison); colors and albedos are also indicated.
		Asteroids located near the top or bottom of the diagram occupy relatively eccentric or inclined orbits (or both), while those shown near the ecliptic plane move in relatively circular, noninclined orbits.
	alumnus.caltech.edu /~marcsulf/asteroid/asteroid.html (445 words)

	Learn more about 65 Cybele in the online encyclopedia. (Site not responding. Last check: 2007-10-29)
		65 Cybele is the eighth largest asteroid at 309 km, discovered on March 8 1861 by E.W. Tempel.
		The sixty-fifth asteroid discovered, the semimajor axis of its orbit is approximately 3.5 AU.
		The Cybele Group of asteroids is named after it.
	www.onlineencyclopedia.org /6/65/65_cybele.html (140 words)

	Astron. Astrophys. 336, 1056-1064 (1998)
		Collisions experienced by Hilda asteroids are dominated by HM collisions (74%), whereas the low velocity HH collisions only contribute 7% to the number of collisions involving Hilda asteroids.
		Collisions involving objects from the Cybele group are mostly from the MC collisions (91%) with small contributions from CC (5%) and HC (4%) populations.
		of the 909 asteroids included in the asteroid sample versus their semi-major axis are given in Fig.
	aa.springer.de /papers/8336003/2301056/sc4.htm (1389 words)

	121 Hermione - Wikipedia, the free encyclopedia
		Hermione is a Cybele asteroid and orbits beyond most of the main belt asteroids.
		A satellite of Hermione was discovered in 2002 from the Keck II telescope.
		The satellite discovery made possible an accurate measurement of mass and density of the asteroid.
	en.wikipedia.org /wiki/121_Hermione (260 words)

	A study of Cybele asteroids - II. Spectral properties of Cybele asteroids
		One additional Cybele asteroid was observed with the ESO 3.6 m telescope.
		From the spectra we have derived spectral slopes and taxonomy classifications.
		In particular, the observed dominance of red objects for small diameters is consistent with a space weathering scenario, where irradiation of asteroid regoliths with solar wind plasma neutralizes their surface colours due to carbonization of originally reddish organic components.
	aanda.u-strasbg.fr:2002 /articles/aa/abs/2005/10/aa1152/aa1152.html (279 words)

	A study of Cybele asteroids (Site not responding. Last check: 2007-10-29)
		One additional Cybele asteroid was observed with the ESO 3.6 m telescope.
		From the spectra we have derived spectral slopes and taxonomy classifications.
		In particular, the observed dominance of red objects for small diameters is consistent with a space weathering scenario, where irradiation of asteroid regoliths with solar wind plasma neutralizes their surface colours due to carbonization of originally reddish organic components.
	www.edpsciences.org /articles/aa/abs/2005/10/aa1152/aa1152.html (278 words)

	65 Cybele - Wikipedia, the free encyclopedia
		65 Cybele (sib'-a-lee) is one of the largest asteroids in the main belt.
		First Cybelian stellar occultation was observed on October 17, 1979 in the Soviet Union.
		During the same occultation, a hint of a possible 11 km wide satellite was detected.
	en.wikipedia.org /wiki/65_Cybele (139 words)

	Cybele Asteroids (Site not responding. Last check: 2007-10-29)
		In the light of the interesting results concerning the Hilda asteroids we have extended our spectroscopic investigation to the Cybele asteroids.
		To decrease the lower size limit of the sample, 15 of the observed asteroids are below the earlier studied size range.
		Additional observations of several large Cybele asteroids were made in February 2000 with the Danish 1.54m telescope at ESO.
	www.astro.uu.se /~classe/projects/cybele.html (116 words)

	Some named solar system objects
		Includes Earth-approaching asteroids over 5 km in diameter, visited by space probes, or well studied by radar; main belt asteroids over 200 km in diameter or visited by space probes; Jupiter Trojan asteroids over 160 km in diameter.
		A total of 12,753 asteroids (excluding outer solar system objects) are named.
		Another 52 provisional or probable asteroid satellites are reported, plus 22 satellites of trans-Neptunian objects.
	pages.prodigy.net /wrjohnston/astro/somenames.html (175 words)

	Publications
		Lagerkvist, C.-I., Moroz, L., Nathues, A., Erikson, A., Lahulla, F., Karlsson, O., Dahlgren, M. A study of Cybele asteroids II.
		Rauer, H. Dynamics of the circumstellar gas in BF Orionis, SV Cephei, WW Vulpeculae and XY Persei, Astronomy and Astrophysics, 419, 225.
		A.A. Lagerkvist, C.-I., Erikson, A., Lahulla, F., Di Martino, M., Nathues, A., Dahlgren, M. A Study of Cybele Asteroids I. Spin Properties of 10 Asteroids.
	solarsystem.dlr.de /Missions/corot/caesp/publications.shtml (1627 words)

	65 Cybele - Encyclopedia Glossary Meaning Explanation 65 Cybele (Site not responding. Last check: 2007-10-29)
		Here you will find more informations about 65 Cybele.
		It was discovered on March 8 1861 by Ernst Tempel and named after Cybele the earth goddess.
		The orginal 65 Cybele article can be editet
	www.encyclopedia-glossary.com /en/65-Cybele.html (168 words)

	Cambridge Conference Correspondence
		We observed 29 Hungaria and 31 Phocaea asteroids at the European Southern
		It is commonly accepted that the formation of asteroid families is the
		asteroid families, and encouraging agreement is obtained in most cases.
	abob.libs.uga.edu /bobk/ccc/cc021601.html (5400 words)

	6.1 Cross-Calibration Strategy (Site not responding. Last check: 2007-10-29)
		m) to be used as standards, and asteroids and planets have to be used instead.
		5% or better, the uncertainties in asteroid and planet model spectral energy distributions are larger (10-15% level).
		In the case of asteroids their characterisation is additionally complicated by their variability, which limits the accuracy of the absolute flux calibration of ISO at long wavelengths.
	isowww.estec.esa.nl /manuals/HANDBOOK/gen_hb/node41.html (1219 words)

	ACM2005 (Site not responding. Last check: 2007-10-29)
		Observations of asteroids with the VLTI: 1459 Magnya
		Simulations of asteroid disruptions at the catastrophic impact energy threshold: effects of the target´s internal structure and diameter
		The changes of the orbital elements and estimation of the initial velocities of stream meteoroids ejected from comets and asteroids.
	www.on.br /acm2005/check-abstract.php (3002 words)

	Protoscience
		Asteroids : Binary asteroids, Asteroids visited by spacecraft, Asteroid groups and families, Lists of asteroids, Main Belt asteroids, Asteroids to be visited by spacecraft, Asteroid discoverers, Near-Earth objects, Asteroids named for people, V-type asteroids, G-type asteroids, B-type asteroids, S-type asteroids
		Asteroid groups and families : Alinda asteroids, Themis asteroids, Flora asteroids, Eos asteroids, Vesta asteroids, Cybele asteroids, Ceres asteroids
		Main Belt asteroids : Themis asteroids, Flora asteroids, Eos asteroids, Vesta asteroids, Cybele asteroids, Ceres asteroids
	www.froola.com /index/catind_Protoscience.html (250 words)

	Chiron and Friends (Centaurs, Asteroids, Exoplanets)
		For a very brief time, it was our Tenth Planet, until it became one of the members of the new "Dwarf Planet" category (along with Pluto and Ceres.)
		Since the mid-1970's, astrologers have been exploring the use of the asteroids in the chart, and most astrology programs now include the first four: Ceres, Pallas, Juno and Vesta.
		Cybele was a Phrygian goddess that the Greeks identified with Rhea as well.
	www.zanestein.com /chiron_a.htm (1152 words)

	Publications 2001 - present
		Lagerkvist C.-I., Moroz L., Nathues A., Erikson A., Lahulla F., Karlsson O. and Dahlgren M. (2005) A study of Cybele asteroids II.
		Sokol A. and Bischoff A. (2006) Simultaneous accretion of differentiated or metamorphosed asteroidal clasts and chondrules.
		Al heating of the H chondrite parent asteroid.
	www.uni-muenster.de /Planetologie/en/groups/expplan/publications/2001-present.html (8984 words)

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