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Asteroid spectral type
E-type (enstatite achondrite–type) asteroids are asteroids thought to have enstatite (MgSiO3) achondrite surfaces. They form a large proportion of asteroids
E-type_asteroid
Most common asteroid spectral type
C-type (carbonaceous /ˌkɑːrbəˈneɪʃəs/) asteroids are the most common variety, forming around 75% of known asteroids. They are volatile-rich and distinguished
C-type_asteroid
Asteroid spectral type
M-type (metallic-type, a.k.a. M-class) asteroids are a spectral class of asteroids which appear to contain higher concentrations of metal phases (e.g
M-type_asteroid
Topics referred to by the same term
E-Type, Type E, or other variations may refer to: E-type asteroid, an asteroid thought to have an enstatite achondrite surface Victorian Railways E type
E-Type
Classification type of a class of astronomical objects
An asteroid spectral type is assigned to asteroids based on their reflectance spectrum, color, and sometimes albedo. These types are thought to correspond
Asteroid_spectral_types
Asteroid spectral type indicating stony composition
S-type (stony-type or siliceous-type) asteroids are asteroids with a spectral type that is indicative of a siliceous (i.e. stony) mineralogical composition
S-type_asteroid
Type of asteroid spectral group
D-type asteroids have a very low albedo and a featureless reddish spectrum. It has been suggested that they have a composition of organic-rich silicates
D-type_asteroid
Asteroid class
A-type asteroids are relatively uncommon inner-belt asteroids that have a strong, broad 1 μm olivine feature and a very reddish spectrum shortwards of
A-type_asteroid
Main-belt asteroid
an asteroid located in the inner region of the main asteroid belt. It is the largest, brightest, and first confirmed E-type asteroid, a rare type of asteroid
44_Nysa
Grouping of asteroids
types L-type asteroid S-type asteroid K-type asteroid Fornasier, S.; Clark, B. E.; Dotto, E. (July 2011). "Spectroscopic survey of X-type asteroids"
X-type_asteroid
Main-belt asteroid
irregular, diamond-shaped background asteroid from the inner regions of the asteroid belt. Classified as an E-type asteroid, it is approximately 5 kilometers
2867_Šteins
Type of carbonaceous asteroid
F-type asteroids are a relatively uncommon type of carbonaceous asteroid, falling into the wider C-group. F-type asteroids have spectra generally similar
F-type_asteroid
Type of asteroid
Q-type asteroids are relatively common inner-belt asteroids with a strong, broad 1 micrometre olivine and pyroxene feature, and a spectral slope that
Q-type_asteroid
Near-Earth asteroid
seen on large rubble pile asteroids like Itokawa and Ryugu. Telescope observations have shown it to be an E-type asteroid, whose surface is bright white
1998_KY26
Main-belt asteroid
is an asteroid in the central region of the asteroid belt, approximately 50 kilometres in diameter. It is the second-largest known E-type asteroid, a rare
64_Angelina
Type of asteroid
G-type asteroids are a relatively uncommon type of carbonaceous asteroid that makes up approximately 5% of asteroids. The most notable asteroid in this
G-type_asteroid
Type of asteroid
during studies of the Eos family of asteroids. Asteroid spectral types L-type asteroid S-type asteroid X-type asteroid 181 Eucharis 221 Eos 402 Chloë 417
K-type_asteroid
Region between the orbits of Mars and Jupiter
basic groups: carbonaceous (C-type), silicate (S-type), and X-type, which includes metal-rich asteroids. The asteroid belt formed from the primordial
Asteroid_belt
2024 meteoroid
asteroid. Before it impacted, 2024 BX1 was a near-Earth asteroid on an Earth-crossing Apollo-type orbit. The bolide had a steep entry of 75.6° and an entry
2024_BX1
Small asteroid
E-type asteroids, and comparison of its spectral and dynamical properties suggest it may have broke off of the 70-kilometer diameter E-type asteroid 44
2015_TC25
Type of asteroid
R-type asteroids are moderately bright, relatively uncommon inner-belt asteroids that are spectrally intermediate between the V and A-type asteroids. The
R-type_asteroid
Minor planet found within the inner Solar System
(Trojan asteroids). Asteroids are rocky, metallic, or icy bodies with no atmosphere, and are broadly classified into C-type (carbonaceous), M-type (metallic)
Asteroid
Type of asteroid
J-type asteroids are asteroids with spectra similar to that of diogenite meteorites and so, presumably, to the deeper layers of the crust of 4 Vesta. Their
J-type_asteroid
Asteroid spectral type
O-type asteroids are a rare type of asteroids that have spectra similar to the unusual asteroid 3628 Boznemcová, which is the best asteroid match to the
O-type_asteroid
Main-belt asteroid
relatively small asteroid orbiting in the inner asteroid belt that is approximately 11 kilometers in diameter. It is an E-type (high-albedo) asteroid. It is the
434_Hungaria
Pyroxene: magnesium-iron silicate with MgSiO3 and FeSiO3 end-members
needed] Enstatite is thought to be a main component of the E-type asteroids. The Hungaria asteroids are the main examples in the Solar System. A layer of quartz
Enstatite
Main-belt asteroid
Infrared measurements show a diameter of 18.6 km. It is classified as an E-type asteroid and has a rotation period of 8.169 hours. In 2008, a team identified
317_Roxane
Group of asteroids in the asteroid belt that orbit the Sun between 1.78 and 2.00AU
asteroids are in core region of the asteroid belt, which lies between the 4:1 gap (at 2.06 AU) and the 2:1 gap (at 3.27 AU). Most Hungaria are E-type
Hungaria_asteroids
Risk-listed near-Earth asteroid
2024 YR4 is an asteroid with an estimated diameter of 53 to 67 metres (174 to 220 ft) that is classified as an Apollo-type (Earth-crossing) near-Earth
2024_YR4
Sub-kilometer asteroid
Palomar Observatory, California, United States. The likely bright E-type asteroid was named Astronautica, the Latin word for "star sailor", on the 50th
100000_Astronautica
Type of asteroid
T-type asteroids are rare inner-belt asteroids of unknown composition with dark, featureless and moderately red spectra, and a moderate absorption feature
T-type_asteroid
Metallic main-belt asteroid
16 Psyche (/ˈsaɪkiː/ SY-kee) is a large M-type asteroid, which was discovered by the Italian astronomer Annibale de Gasparis, on 17 March 1852 and named
16_Psyche
Hypothetical extension of the asteroid belt
The E-belt asteroids were the population of a hypothetical extension of the primordial asteroid belt proposed as the source of most of the basin-forming
E-belt_asteroids
Near-Earth asteroid
(/kəˌmoʊʔoʊəˈlɛvə/; provisional designation 2016 HO3) is a very small Apollo-type near-Earth asteroid approximately 27.4 meters (90 feet) in diameter. It is an elongated
469219_Kamoʻoalewa
Mars-crossing asteroid
at the Leoncito Astronomical Complex in Argentina. The transitional E-type asteroid has a long rotation period of 93 hours. It was named after American
2035_Stearns
Main-belt asteroid
of the ecliptic. It is classified as a rare E-type asteroid and is fairly faint for an object of its type. The overall diameter is estimated to be 23 km
214_Aschera
Stony main-belt asteroid
tied with three other asteroids as the thirteenth largest asteroid, and it is one of the two largest stony (S-type) asteroids, along with 15 Eunomia
3_Juno
Asteroid responsible for the Geminids meteor shower
active Apollo asteroid with an orbit that brings it closer to the Sun than any other named asteroid (though there are numerous unnamed asteroids with smaller
3200_Phaethon
Near-Earth asteroid
diameter. An Amor asteroid, it orbits between Earth and Mars. It is an X-type asteroid, so its precise surface composition is yet unknown, though telescopic
(10302)_1989_ML
Asteroid
Infrared Survey Explorer (WISE), Sequoia is a bright E-type asteroid, which is the predominant type for members of the Hungaria family, while in the SMASS
1103_Sequoia
Sub-kilometer asteroid
unknown for most asteroids. According to the ExploreNEOs Warm Spitzer Exploration Science program, 1998 WT24 is a bright E-type asteroid with an exceptionally
(33342)_1998_WT24
Hungaria asteroid and binary system
Eleanor Helin at the Palomar Observatory in California. The presumed E-type asteroid is likely spherical in shape and has a short rotation period of 2.99
5477_Holmes
Hungaria asteroid
the Palomar Observatory in California, United States. The presumed E-type asteroid has a longer-than average rotation period of 37.4 hours and possibly
(15692)_1984_RA
Mars-crossing asteroid
taxonomy, Kenos is an E-type asteroid. PanSTARRS has characterized it as a CX-type, which transitions between the C-type and X-type asteroids. Observations performed
2449_Kenos
Exploitation of raw materials from asteroids
Asteroid mining is the hypothetical and technically possible extraction of materials from asteroids and other minor planets, including near-Earth objects
Asteroid_mining
Asteroid population sharing similar proper orbital elements
are thought to be fragments of past asteroid collisions. An asteroid family is a more specific term than asteroid group, whose members, while sharing
Asteroid_family
Hungaria asteroid
Eleanor Helin at the Palomar Observatory in California. The presumed E-type asteroid has a long rotation period of 30.8 hours and possibly an elongated
6296_Cleveland
Hungaria asteroid
E-type asteroid, alternatively classified as a V-type, is a member of the Hungaria family, which form the innermost dense concentration of asteroids in
5806_Archieroy
Asteroid
E-type asteroid. In the SMASS taxonomy, it has been classified as a Xe-type, which transitions from the E to the X-types. In addition, the asteroid has
1025_Riema
Apollo asteroid
hazardous asteroid of the Apollo group. It measures approximately 900 metres (3,000 ft) in diameter and is a dark object of the rare spectral type Cb, with
162173_Ryugu
Stony main-belt asteroid
15 Eunomia is a large asteroid in the middle asteroid belt. It is the largest of the stony (S-type) asteroids, with a mean diameter of about 270 kilometres
15_Eunomia
Main-belt asteroid
telescopic observations categorized Ida as an S-type asteroid, the most numerous type in the inner asteroid belt. On 28 August 1993, Ida was visited by the
243_Ida
Apollo asteroid target of Hayabusa2's extended mission
an Apollo-type near-Earth asteroid with a diameter of about 450 metres (1,500 feet). It was discovered by the Lincoln Near-Earth Asteroid Research (LINEAR)
98943_Torifune
Asteroid
Zimmerwald Observatory near Bern, Switzerland, on 5 March 1973. The X-type asteroid (Xe) has a rotation period of 5.5 hours and measures approximately 5
2001_Einstein
Hungaria asteroid
the asteroid's observation arc by 34 years prior to its official discovery observation. Ables has been characterized as a bright E-type asteroid. Based
5175_Ables
S-type asteroid in the inner asteroid belt with stony mineralogical composition
951 Gaspra is an S-type asteroid that orbits very close to the inner edge of the asteroid belt. Gaspra was discovered by Russian astronomer G. N. Neujmin
951_Gaspra
lists of asteroids of the Solar System that are exceptional in some way, such as their size or orbit. For the purposes of this article, "asteroid" refers
List_of_exceptional_asteroids
Large main-belt asteroid
fourth-brightest object in the asteroid belt. 7 Iris is classified as an S-type asteroid, meaning that it has a stony composition. Iris was discovered on 13
7_Iris
Group of meteorites
have revealed striking similarities between the aubrite group and the E-type asteroids of the Nysa family.[citation needed] A small near-Earth object, 3103
Aubrite
Large asteroid in the asteroid belt
704 Interamnia is a large F-type asteroid. With a mean diameter of around 330 kilometres, it is the fifth-largest asteroid, after Ceres, Vesta, Pallas
704_Interamnia
Main-belt asteroid
22 Kalliope (/kəˈlaɪ.əpi/; kə-LY-ə-pee) is a large M-type asteroid from the asteroid belt discovered by J. R. Hind on 16 November 1852. It is named after
22_Kalliope
Main-belt asteroid
21 Lutetia is a large M-type asteroid in the main asteroid belt. It measures about 100 kilometers in diameter (120 km along its major axis). It was discovered
21_Lutetia
Stony near-Earth asteroid
Earth's orbit. The S-type asteroid has a rotation period of 10.3 hours. Ganymed is an Amor asteroid, a subgroup of the near-Earth asteroids that approach the
1036_Ganymed
Main-belt asteroid
magnitude. It also appears to be tumbling. 437 Rhodia is classified as an E-type asteroid with a diameter of approximately 13 km. This object has the highest
437_Rhodia
Fourth-largest asteroid
is a large asteroid in the outer region of the main asteroid belt, between the orbits of Mars and Jupiter. It was the tenth known asteroid, discovered
10_Hygiea
Satellites of Jupiter
being the only E-type asteroid. It was later recognized that the "Nysa family" is actually a collection of overlapping unrelated asteroid families of different
Himalia_group
Asteroid in the Asteroid belt
this object is classified as a K-type asteroid. The orbital properties show it to be a member of the extensive Eos asteroid family, which is named after it
221_Eos
Large asteroid in the asteroid belt
approximately the sixth largest asteroid by volume. Most likely it has a density of around 1.5 g/cm3, typical of C-type asteroids. In 2007, James Baer and Steven
52_Europa
Group of asteroids in orbital resonance with Jupiter
The Hilda asteroids (adj. Hildian) are a dynamical group of more than 7,000 asteroids located beyond the asteroid belt but within Jupiter's orbit, in
Hilda_asteroid
Large asteroid
of magnesium and iron. It is an S-type asteroid in the Tholen classification system. Astraea was the fifth asteroid discovered, on 8 December 1845, by
5_Astraea
CHARACTERIZATION OF ~2 m DIAMETER NEAR-EARTH ASTEROID 2015 TC25: A POSSIBLE BOULDER FROM E-TYPE ASTEROID (44) NYSA", The Astronomical Journal, 152 (6):
List of Solar System objects by size
List_of_Solar_System_objects_by_size
1007/3-540-37683-6_9, ISBN 3-540-26056-0 Keller, H. U.; et al. (January 2010), "E-Type Asteroid (2867) Steins as Imaged by OSIRIS on Board Rosetta", Science, 327 (5962):
List of instrument-resolved minor planets
List_of_instrument-resolved_minor_planets
Dwarf planet in the asteroid belt
dwarf planet in the main asteroid belt between the orbits of Mars and Jupiter. It was the first object identified in the asteroid belt, discovered on 1 January
Ceres_(dwarf_planet)
Stony near-Earth asteroid
1862 Apollo /əˈpɒloʊ/ is a stony asteroid, approximately 1.5 kilometers in diameter, classified as a near-Earth object (NEO). It was discovered by German
1862_Apollo
Asteroid visited by New Horizons
its flyby in June 2006, when it was passing through the asteroid belt. The stony S-type asteroid measures approximately 2.5 kilometers (1.6 miles) in diameter
132524_APL
Asteroid with 2 moons
Camilla, Queen of the Volsci in Roman mythology. The X-type asteroid is a rare triple asteroid with two minor-planet moons discovered in 2001 and 2016
107_Camilla
Main-belt asteroid
93 Minerva is a large triple main-belt asteroid. It is a C-type asteroid, meaning that it has a dark surface and possibly a primitive carbonaceous composition
93_Minerva
Methods to prevent destructive asteroid hits
Asteroid impact avoidance encompasses the methods by which near-Earth objects (NEO) on a potential collision course with Earth could be diverted, preventing
Asteroid_impact_avoidance
Asteroid with two moons
figure from classical legend. Eugenia is a large asteroid, with a diameter of 214 km. It is an F-type asteroid, which means that it is very dark in colouring
45_Eugenia
Main belt asteroid target of the Lucy mission
is a binary main-belt asteroid about 740 meters (2,400 feet) in diameter. It was discovered by the Lincoln Near-Earth Asteroid Research (LINEAR) survey
152830_Dinkinesh
Sub-kilometer sized asteroid and binary system on an eccentric orbit
the last remaining named lost asteroid, rediscovered in 2003. The S-type asteroid has a rotation period of 13.9 hours. Its synchronous companion was discovered
69230_Hermes
Main-belt asteroid
Hestia is a large, dark main-belt asteroid. It is also the primary body of the Hestia clump, a group of asteroids with similar orbits. Hestia was discovered
46_Hestia
Main-belt asteroid
Bigelow near Tucson, Arizona. The asteroid was named for the discoverer's wife, Alyse Cherri. The E-type asteroid is a member of the Hungaria family
7959_Alysecherri
M-type asteroid
216 Kleopatra is a large M-type asteroid with a mean diameter of 120 kilometers (75 miles) and is noted for its elongate bone or dumbbell shape. It was
216_Kleopatra
Main-belt asteroid
502 Sigune is a minor planet, specifically an asteroid orbiting primarily in the asteroid belt. Like 501 Urhixidur and 500 Selinur, it is named after
502_Sigune
Large asteroid in the asteroid belt
511 Davida is a large C-type asteroid in the asteroid belt. It is one of the largest asteroids; approximately tied for 7th place, to within measurement
511_Davida
Centaur
2018. "Asteroid 5145 Pholus". Small Bodies Data Ferret. Retrieved 26 November 2018. Duffard, R.; Pinilla-Alonso, N.; Santos-Sanz, P.; Vilenius, E.; Ortiz
5145_Pholus
Asteroid
designation 1951 RA) is a highly elongated, stony asteroid, near-Earth object and potentially hazardous asteroid of the Apollo group, with a mean diameter of
1620_Geographos
Asteroid
carbonaceous C-type asteroid. In the Tholen classification, the body's spectral type is ambiguous (BCF), closest to that of a bright carbonaceous B-type and somewhat
1508_Kemi
Group of overlapping asteroid families
families and contains carbonaceous asteroids with spectral types C, B, and F. The New Polana family formed from an asteroid collision 1.40±0.15 billion years
Nysa–Polana_complex
Second largest main-belt asteroid
Vesta (minor-planet designation: 4 Vesta) is one of the objects in the asteroid belt, with a mean diameter of 525 kilometres (326 mi). It was discovered
4_Vesta
Main-belt asteroid binary
binary asteroid discovered in 1872. It orbits in the Cybele group in the far outer asteroid belt. As an asteroid of the dark C spectral type, it is probably
121_Hermione
Hungaria asteroid
Isobe. The presumed E-type asteroid is a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System
7187_Isobe
Hungarian-type Mars-crosser and rare triple asteroid
designation 1975 EE3) is a Hungarian-type Mars-crosser and rare triple asteroid from the inner regions of the asteroid belt, approximately 5.5 kilometers
2577_Litva
Main-belt asteroid
that of an X-type and Xc-type in SMASS classification scheme, which indicates a transitional stage to the carbonaceous C-type asteroid. It has also been
2065_Spicer
Binary Hungaria asteroid
Pauling. The bright E-type asteroid is a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System
4674_Pauling
Potentially hazardous near-Earth asteroid in the Apollo group
hazardous asteroid. It was discovered by the LINEAR program in 1998 and later named after Japanese rocket engineer Hideo Itokawa. The peanut-shaped S-type asteroid
25143_Itokawa
Large asteroid with two moons
of Cybele group located beyond the main asteroid belt (see minor-planet groups). Sylvia was the first asteroid known to possess more than one moon. Sylvia
87_Sylvia
Double asteroid system in the outer asteroid belt
90 Antiope is a double asteroid in the outer asteroid belt. It was discovered on 1 October 1866, by Robert Luther. In 2000, it was found to consist of
90_Antiope
Third-largest asteroid
designation: 2 Pallas) is the third-largest asteroid in the Solar System by volume and mass. It is the second asteroid to have been discovered, after Ceres,
2_Pallas
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E TYPE-ASTEROID
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E TYPE-ASTEROID
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