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Encyclopedia > (19308) 1996 TO66
(19308) 1996 TO66
Discovery
Discovered by: Chadwick A. Trujillo,
David C. Jewitt and
Jane X. Luu
Discovery date: 12 October 1996
Orbital characteristics
Epoch December 31, 2006 (JD 2454100.5)
Aphelion distance: 7251.168 Gm (48.471 AU)
Perihelion distance: 5677.589 Gm (37.952 AU)
Semi-major axis: 6464.378 Gm (43.212 AU)
Eccentricity: 0.122
Orbital period: 103752.953 d (284.06 a)
Avg. orbital speed: 4.51 km/s
Mean anomaly: 124.299°
Inclination: 27.460°
Longitude of ascending node: 355.236°
Argument of perihelion: 240.207°
Physical characteristics
Dimensions: 330-750 km H (<902km) [1]
Mass: 3.8-44×1019? kg
Mean density: 2.0? g/cm³
Equatorial surface gravity: 0.09-0.21? m/s²
Escape velocity: 0.17-0.40? km/s
Sidereal rotation period: 0.2604 d (6.250 h)
Albedo: >0.04 [2]
Spectral type: B-V=0.72; V-R=0.40
Absolute magnitude: 4.56

(19308) 1996 TO66 (also written (19308) 1996 TO66) is a trans-Neptunian object. It was discovered in 1996 by Chadwick A. Trujillo, David C. Jewitt and Jane X. Luu, and appears to be a collisional fragment off of the parent body 2003 EL61. Four other fragments (1995 SM55, 2002 TX300, 2003 OP32, 2005 RR43) have been detected, based on their common pattern of IR water-ice absorption and a clustering of their orbital elements. Chadwick A. Trujillo (born November 22, 1973) is a postdoctoral scholar at Caltech researching the Edgeworth-Kuiper belt and the outer solar system. ... David C. Jewitt is a Professor of astronomy at the University of Hawaii Institute for Astronomy. ... Categories: American astronomers | Vietnamese Americans | Women in science | Astronomers stubs ... is the 285th day of the year (286th in leap years) in the Gregorian calendar. ... Year 1996 (MCMXCVI) was a leap year starting on Monday (link will display full 1996 Gregorian calendar). ... Two bodies with a slight difference in mass orbiting around a common barycenter. ... In astronomy, an epoch is a moment in time for which celestial coordinates or orbital elements are specified. ... December 31 is the 365th day of the year (366th in leap years) in the Gregorian calendar. ... For the Manfred Mann album, see 2006 (album). ... The Julian day or Julian day number (JDN) is the integer number of days that have elapsed since the initial epoch defined as noon Universal Time (UT) Monday, January 1, 4713 BC in the proleptic Julian calendar [1]. That noon-to-noon day is counted as Julian day 0. ... A diagram of Keplerian orbital elements. ... A diagram of Keplerian orbital elements. ... The semi-major axis of an ellipse In geometry, the term semi-major axis (also semimajor axis) is used to describe the dimensions of ellipses and hyperbolae. ... Look up giga- in Wiktionary, the free dictionary. ... The metre or meter is a measure of length. ... The astronomical unit (AU or au or a. ... (This page refers to eccitricity in astrodynamics. ... The orbital period is the time it takes a planet (or another object) to make one full orbit. ... Look up day in Wiktionary, the free dictionary. ... In astronomy, a Julian year is a unit of time defined as exactly 365. ... The orbital speed of a body, generally a planet, a natural satellite, an artificial satellite, or a multiple star, is the speed at which it orbits around the barycenter of a system, usually around a more massive body. ... Look up second in Wiktionary, the free dictionary. ... In the study of orbital dynamics the mean anomaly is a measure of time, specific to the orbiting body p, which is a multiple of 2&#960; radians at and only at periapsis. ... Inclination in general is the angle between a reference plane and another plane or axis of direction. ... A degree (in full, a degree of arc, arc degree, or arcdegree), usually symbolized °, is a measurement of plane angle, representing 1/360 of a full rotation. ... The Longitude of the ascending node (☊, also noted Ω) is one of the orbital elements used to specify the orbit of an object in space. ... The argument of periapsis (ω) is the orbital element describing the angle between an orbiting bodys ascending node (the point where the body crosses the plane of reference from South to North) and its periapsis (the point of closest approach to the central body), measured in the orbital plane and... A kilometer (Commonwealth spelling: kilometre), symbol: km is a unit of length in the metric system equal to 1,000 metres (from the Greek words χίλια (khilia) = thousand and μέτρο (metro) = count/measure). ... Unsolved problems in physics: What causes anything to have mass? The U.S. National Prototype Kilogram, which currently serves as the primary standard for measuring mass in the U.S. Mass is the property of a physical object that quantifies the amount of matter and energy it is equivalent to. ... The U.S. National Prototype Kilogram, which currently serves as the primary standard for measuring mass in the U.S. It was assigned to the United States in 1889 and is periodically recertified and traceable to the primary international standard, The Kilogram, held at the Bureau International des Poids et... In physics, density is mass m per unit volume V. For the common case of a homogeneous substance, it is expressed as: where, in SI units: ρ (rho) is the density of the substance, measured in kg·m-3 m is the mass of the substance, measured in kg V is... A cubic centimetre (cm3) is an SI derived unit of volume, equal to the volume of a cube with side length of 1 centi metre. ... The surface gravity of a Killing horizon is the acceleration, as exerted at infinity, needed to keep an object at the horizon. ... Space Shuttle Atlantis launches on mission STS-71. ... On a prograde planet like the Earth, the sidereal day is shorter than the solar day. ... Albedo is the ratio of reflected to incident electromagnetic radiation. ... In astronomy, absolute magnitude is the apparent magnitude, m, an object would have if it were at a standard luminosity distance away from us, in the absence of interstellar extinction. ... A trans-Neptunian object (TNO) is any object in the solar system that orbits the sun at a greater distance on average than Neptune. ... Year 1996 (MCMXCVI) was a leap year starting on Monday (link will display full 1996 Gregorian calendar). ... Chadwick A. Trujillo (born November 22, 1973) is a postdoctoral scholar at Caltech researching the Edgeworth-Kuiper belt and the outer solar system. ... David C. Jewitt is a Professor of astronomy at the University of Hawaii Institute for Astronomy. ... Categories: American astronomers | Vietnamese Americans | Women in science | Astronomers stubs ...


References

  1. ^ Grundy, W. M.; Noll, K. S.; Stephens, D. C. (2004). Diverse albedos of small trans-neptunian objects 22. Retrieved on 2006-11-07.
  2. ^ Altenhoff (2004). TNO/Centaur diameters and albedos. Retrieved on 2006-11-08.
Minor planets
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