Minor Planet (32890) Schwob = 1994 AL1
Discovered 1994 January 8 by
Carolyn S. Shoemaker and David H. Levy at Palomar.
As the result of an extraordinarily gracious request by their discoverers,
asteroid 32890 is named "Schwob" by the IAU's MPC on 28 September 2004.
Named in honor of Pierre Schwob (b.1946), a software engineer
whose eclectic interests bring together studies in cosmology and in
comets. Dividing his interest between the Kavli Institute for Particle
Astrophysics and Cosmology, and the Jarnac Comet Survey, Schwob
also manages to find time for his writings on classical music,
pocket calculators, and chess.
Facsimile of the IAU's Minor Planet Center
Circular No. 52770, dated 2004 Sept. 28
Discovered 1994 January 8 by
C. S. Shoemaker and D. H. Levy at Palomar
Thank you David, Wendee, and Carolyn!
My family and I will be eternally grateful.
Named in honor of Pierre Schwob (b.1946), a software engineer whose eclectic interests bring together studies in cosmology and in comets. Dividing his interest between the Kavli Institute for Particle Astrophysics and Cosmology, and the Jarnac Comet Survey, Schwob also manages to find time for his writings on classical music, pocket calculators, and chess.
Source: neo.jpl.nasa.gov - See the definitions below
|Epoch (MJD)||2456000.5 (2012-Mar-14.0)|
|a = Semi-major Axis Distance (A)||1.8824363 AU|
|e = Eccentricity (EC)||0.1666216|
|i = Inclination (IN)||28.56468 deg|
|Ω = Longitude of the Ascending Node (OM)||101.18856 deg|
|q = Perihelion Distance (QR)||1.5687818 AU|
|w = Argument of Perihelion (W)||54.02614 deg|
|Q = Aphelion Distance (ADIST)||2.1960908 AU|
|M = Mean Anomaly (L)||339.03578 deg|
|P = Orbital Period (PER)||943.3630258 d (2.58 y)|
|n = Mean Motion (N)||0.38161343 deg/d|
|TJup = Jupiter Tisserand invariant||3.806|
|H = Absolute Magnitude (H)||15.6|
|G = Magnitude Slope parameter (G)||0.150|
|Est. diameter (with typical albedo of 0.05 to 0.25)||2.016 to 4.508 km (1.253 to 2.801 miles)|
I'm also an interested supporter of SETI, whose mission is to explore, understand and explain the origin, nature and prevalence of life in the universe.
A Few Definitions
Astronomical Unit (AU)
An Astronomical Unit is the mean distance between the Earth and the Sun. It is a derived constant and used to indicate distances within a solar system. The Earth orbits at a distance of 1 AU from the Sun.
Argument of Perihelion
The angle (in the body's orbit plane) between the ascending node line and perihelion measured in the direction of the body's orbit.
An orbital parameter describing the eccentricity of the orbit ellipse. Eccentricity e is the ratio of half the distance between the foci c to the semi-major axis a: e=c/a. For example, an orbit with e=0 is circular, e=1 is parabolic, and e between 0 and 1 is elliptic.
The angle between the vectors normal to the body's orbit plane and the specified reference plane. Typical reference planes are the ecliptic plane and the equatorial plane (referred to a specific epoch).
Longitude of Perihelion
The sum of the longitude of the ascending node and the argument of perihelion.
Longitude of the Ascending Node
The angle between the reference X-direction (typically the vernal equinox) and the point at which the body passes up (north) through the reference plane.
The product of an orbiting body's mean motion and time past perihelion passage.
The sum of the mean anomaly and the longitude of perihelion.
The angular speed required for a body to make one orbit around an ideal ellipse with a specific semi-major axis.
The time required for an object to make a complete revolution along its orbit. For example, the orbital period for a typical main-belt asteroid is about 4 years.
The distance between the orbiting body and the sun at its closest approach.
Half the length of the major axis of an orbit ellipse.
Time of Perihelion Passage
The time at which an object is at perihelion (its closest distance to the sun).