(60621) 2000 FE8

(60621) 2000 FE8
Orbit of (60621) 2000 FE8
Discovery [1][2]
Discovered by J. Kavelaars
B. Gladman
J.-M. Petit
M. Holman
Discovery site Mauna Kea Obs.
Discovery date 27 March 2000
Designations
MPC designation (60621) 2000 FE8
2000 FE8
SDO · TNO
Orbital characteristics [1][3]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 4
Observation arc 6.80 yr (2,485 days)
Aphelion 78.590 AU
Perihelion 33.185 AU
55.888 AU
Eccentricity 0.4062
417.81 yr (152,607 days)
30.201°
0° 0m 8.64s / day
Inclination 5.8614°
3.8785°
144.17°
Known satellites 1
Physical characteristics
Dimensions 152 km[4]
Mean density
 1 g/cm3[4]
0.09[4]
Temperature 37 K (-236°C)
(yellow-orange) B−V=0.75; V−R=0.48[5]
6.9[1]

    (60621) 2000 FE8 is a scattered-disk object that resides in a distant, eccentric orbit that brings it 1.1 to 2.6 times farther than Neptune. This object is locked in a 2:5 orbital resonance with Neptune. It is known to have a single moon, S/2007 (60621) 1.[6]

    Orbit

    2000 FE8 has an extremely eccentric orbit which crosses the paths of many other trans-Neptunian objects, including almost all of the dwarf planets and dwarf planet candidates. As a result, its position alternates between the Kuiper Belt and the Scattered disk.[1]

    Resonance with Neptune

    2000 FE8 is part of a group of trans-Neptunian objects that orbit in a 2:5 resonance with Neptune.[7] That means that for every five orbits that Neptune completes, 2000 FE8 makes only two.[6] Several other objects are in the same orbital resonance, the largest of which is (84522) 2002 TC302.

    Moon

    Like many objects of the Kuiper Belt and Scattered Disk, 2000 FE8 has a moon. This moon, S/2007 (60621) 1, was discovered by the Hubble Space Telescope seven years after 200 FE8 itself was found.[8] The moon orbits at 1180 kilometres away from 2000 FE8, completing one orbit every week.[4] It is thought to be 115 km[4] in diameter, just 75.7% the diameter of 2000 FE8 itself. From the surface of 2000 FE8, S/2007 (60621) 1 would have an apparent diameter of roughly 6°,[lower-alpha 1] twelve times larger than the Sun appears from Earth.

    Numbering and naming

    This minor planet was numbered by the Minor Planet Center on 14 June 2003.[9] As of 2018, it has not been named.[2]

    Notes

    1. ↑ Calculated by solving .

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 60621 (2000 FE8)" (2007-01-15 last obs.). Jet Propulsion Laboratory. Retrieved 28 May 2017.
    2. 1 2 "60621 (2000 FE8)". Minor Planet Center. Retrieved 24 February 2018.
    3. ↑ "List Of Centaurs and Scattered-Disk Objects (by semimajor axis)". Minor Planet Center. 4 October 2013. Retrieved 2013-10-04.
    4. 1 2 3 4 5 Johnston, W. R. (26 November 2008). "(60621) 200 FE8". Johnston's Archive. Retrieved 2013-10-01.
    5. ↑ Tegler, S. C.; et al. (2003). "Color patterns in the Kuiper belt: a possible primordial origin". Astrophysical Journal. Bibcode:2003ApJ...599L..49T. doi:10.1086/381076.
    6. 1 2 Johnston, W. R. (5 July 2013). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 2013-10-05.
    7. ↑ Orbit and Astrometry for 60621
    8. ↑ Green, Daniel (3 March 2007). "Circular No. 8816" (PDF). Harvard. Retrieved 2013-10-05.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 24 February 2018.
    • Canada-France Ecliptic Plane Survey (CFEPS)
    • "(60621) 2000 FE 8 orbit diagram". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2060621.
    • (60621) 2000 FE8 at the JPL Small-Body Database
    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.