Ianthe (
minor planet designation
A formal minor-planet designation is, in its final form, a number–name combination given to a minor planet (asteroid, centaur, trans-Neptunian object and dwarf planet but not comet). Such designation always features a leading number (catalog or ...
: 98 Ianthe) is a large
main-belt asteroid
An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere.
...
, named for
three figures
''Three Figures'' is an outdoor sculpture by American artist Mark Bulwinkle, located at Northeast 13th Avenue and Northeast Holladay Street in Portland, Oregon's Lloyd District. The installation includes three bronze or steel figures, created du ...
in
Greek mythology. It is very dark and is composed of
carbonates. It was one of the numerous (for his time—the 19th century) discoveries by
C. H. F. Peters
Christian Heinrich Friedrich Peters (September 19, 1813 – July 18, 1890) was a German–American university teacher and astronomer at the Litchfield Observatory of Hamilton College, New York, and a pioneer in the study and visual discovery of ...
, who found it on April 18, 1868, from
Clinton
Clinton is an English toponymic surname, indicating one's ancestors came from English places called Glympton or Glinton.Hanks, P. & Hodges, F. ''A Dictionary of Surnames''. Oxford University Press, 1988 Clinton has frequently been used as a given ...
,
New York
New York most commonly refers to:
* New York City, the most populous city in the United States, located in the state of New York
* New York (state), a state in the northeastern United States
New York may also refer to:
Film and television
* '' ...
.
This body is orbiting the
Sun with a
period of 4.41 years and an
eccentricity of 0.186. The
orbital plane is
inclined
Incline, inclined, inclining, or inclination may refer to:
*Grade (slope), the tilt, steepness, or angle from horizontal of a topographic feature (hillside, meadow, etc.) or constructed element (road, railway, field, etc.)
*Slope, the tilt, steepn ...
at an angle of 15.6° to the
plane of the ecliptic. Measurements of the cross-section dimension yield a size of around 105 km.
Photometric observations of this asteroid during 2007 at the Organ Mesa Observatory in
Las Cruces, New Mexico were used to create a
light curve plot. This showed a
synodic rotation period
The rotation period of a celestial object (e.g., star, gas giant, planet, moon, asteroid) may refer to its sidereal rotation period, i.e. the time that the object takes to complete a single revolution around its axis of rotation relative to the ...
of hours and a brightness variation of
magnitude during each cycle.
It is classified as a
C-type asteroid, indicating a dark,
carbonaceous surface.
The detection of a candidate moon orbiting 98 Ianthe was announced in 2004.
[
]
References
External links
*
*
Background asteroids8
Ianthe
Ianthe
CG-type asteroids (Tholen)
Ch-type asteroids (SMASS)
18680418
{{C-beltasteroid-stub