162 Laurentia
Encyclopedia
| Orbital characteristics [ftp://ftp.lowell.edu/pub/elgb/astorb.html 1] | |
|---|---|
| Orbit Orbit In physics, an orbit is the gravitationally curved path of an object around a point in space, for example the orbit of a planet around the center of a star system, such as the Solar System... type |
Main belt Asteroid belt The asteroid belt is the region of the Solar System located roughly between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroids or minor planets... |
| Semimajor axis | 3.027 AU Astronomical unit An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance.... |
| Perihelion distance | 2.503 AU Astronomical unit An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance.... |
| Aphelion distance | 3.551 AU Astronomical unit An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance.... |
| Orbital period Orbital period The orbital period is the time taken for a given object to make one complete orbit about another object.When mentioned without further qualification in astronomy this refers to the sidereal period of an astronomical object, which is calculated with respect to the stars.There are several kinds of... |
5.27 years |
| Inclination Inclination Inclination in general is the angle between a reference plane and another plane or axis of direction.-Orbits:The inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit... |
6.08° |
| Eccentricity | 0.173 |
| Physical characteristics [ftp://ftp.lowell.edu/pub/elgb/astorb.html 1] | |
| Diameter Diameter In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints are on the circle. The diameters are the longest chords of the circle... |
99.1 km |
| Rotation period Rotation period The rotation period of an astronomical object is the time it takes to complete one revolution around its axis of rotation relative to the background stars... |
11.87 hours |
| Spectral class 5 | S S-type asteroid S-type asteroids are of a stony composition, hence the name. Approximately 17% of asteroids are of this type, making it the second most common after the C-type.-Characteristics:... T T-type asteroid T-type asteroids are rare inner-belt asteroids of unknown composition with dark, featureless and moderately red spectra, and a moderate absorption feature shortwards of 0.85 µm. No direct meteorite analog has been found to date. Thought to be anhydrous, they are believed to be related to... U |
| Abs. magnitude Absolute magnitude Absolute magnitude is the measure of a celestial object's intrinsic brightness. it is also the apparent magnitude a star would have if it were 32.6 light years away from Earth... |
8.83 |
| Albedo Albedo Albedo , or reflection coefficient, is the diffuse reflectivity or reflecting power of a surface. It is defined as the ratio of reflected radiation from the surface to incident radiation upon it... 4 |
0.053 |
| History 2 | |
| Discoverer | P. M. Henry, 1876 |
162 Laurentia is a large and dark main-belt
Asteroid belt
The asteroid belt is the region of the Solar System located roughly between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroids or minor planets...
asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...
.
It was discovered by brothers Paul Henry and Prosper Henry
Paul Henry and Prosper Henry
Paul-Pierre Henry and his brother Mathieu-Prosper Henry were French opticians and astronomers....
on April 21, 1876, and named after A. Laurent
A. Laurent
A. Laurent was a Frenchman who discovered the asteroid 51 Nemausa in 1858.He never made any more asteroid discoveries and not much more seems to be known about him...
, an amateur astronomer who discovered asteroid 51 Nemausa
51 Nemausa
51 Nemausa is a large asteroid-belt asteroid similar to 1 Ceres in composition. It was discovered by one "A. Laurent", an obscure figure about whom little is known. Laurent made the discovery from the private observatory of Benjamin Valz in Nîmes, France. The house, at 32 rue Nationale in Nîmes,...
.
An occultation
Occultation
An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer. The word is used in astronomy . It can also refer to any situation wherein an object in the foreground blocks from view an object in the background...
by Laurentia was observed from Clive, Alberta
Clive, Alberta
Clive is a village in central Alberta, Canada. It is located 15 minutes east of Lacombe and only 30 minutes from Red Deer.- Demographics :The population of the Village of Clive according to its 2007 municipal census is 610....
on November 21, 1999.