(79983) 1999 DF9: Difference between revisions

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Revision as of 13:42, 8 April 2016

(79983) 1999 DF₉
Discovery
Discovered by	C. Trujillo, D. C. Jewitt, and J. X. Luu
Discovery date	20 February 1999
Designations
Alternative designations	none
Minor planet category	TNO (cubewano)
Orbital characteristics
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 4
Observation arc	1857 days (5.08 yr)
Aphelion	53.761 AU (8.0425 Tm)
Perihelion	39.802 AU (5.9543 Tm)
Semi-major axis	46.782 AU (6.9985 Tm)
Eccentricity	0.14919
Orbital period (sidereal)	319.98 yr (116872 d)
Mean anomaly	18.014°
Mean motion	0° 0 11.089 / day
Inclination	9.7977°
Longitude of ascending node	334.81°
Argument of perihelion	178.06°
Earth MOID	38.8129 AU (5.80633 Tm)
Jupiter MOID	34.4104 AU (5.14772 Tm)
Physical characteristics
Dimensions	265 km
Synodic rotation period	6.65 h (0.277 d)
Absolute magnitude (H)	6.1

(79983) 1999 DF₉, also written as (79983) 1999 DF9, is a cubewano. It travels in a highly eccentric orbit which has a perihelion (closest approach to the Sun) at 39.797 AU and an aphelion (farthest approach from the Sun) at 53.264 AU. It is about 265 km in diameter. It was discovered on February 20, 1999, by Jane X. Luu, Chadwick A. Trujillo and David C. Jewitt.

Due to its small size, it is unlikely to be classified as a dwarf planet.

References

"JPL Small-Body Database Browser: 79983 (1999 DF9)". NASA/Jet Propulsion Laboratory. Retrieved 7 April 2016.

1. http://cfa-www.harvard.edu/iau/lists/TNOs.html 2. http://www.johnstonsarchive.net/astro/tnoslist.html 3. http://hamilton.dm.unipi.it/cgi-bin/astdys/astibo?objects:1999DF9;main

External links

(79983) 1999 DF9 at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

v t e Minor planets navigator
(79982) 1999 DY8 (79983) 1999 DF₉ (79984) 1999 EQ1

Small Solar System bodies

Minor planets

Designation Groups List Moon Meanings of names
Asteroid	Active Aten asteroid Asteroid belt Family Jupiter trojan Near-Earth Spectral types
Distant minor planet	Centaur Neptune trojan Damocloid Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc

Comets

Other

v t e Trans-Neptunian objects
TNO classes	Cubewanos Scattered-disc objects Detached objects Resonant objects Neptune trojans Plutinos Twotinos TNO moons
Dwarf planets (moons)	Orcus Vanth Pluto Charon Styx Nix Kerberos Hydra Haumea Namaka Hiʻiaka Ring Quaoar Weywot Rings Makemake MK2 Gonggong Xiangliu Eris Dysnomia Sedna
Sednoids	90377 Sedna 2012 VP113 541132 Leleākūhonua

This article about a centaur (minor planet) or trans-Neptunian object is a stub. You can help Misplaced Pages by expanding it.

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