2014 FC 69

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Asteroid
2014 FC 69
Properties of the orbit ( animation )
Epoch:  April 27, 2019 ( JD 2,458,600.5)
Orbit type SDO ,
"Distant Object"
Major semi-axis 72.135  AU
eccentricity 0.439
Perihelion - aphelion 40.434 AU - 103.835 AU
Inclination of the orbit plane 30.1 °
Length of the ascending node 250.1 °
Argument of the periapsis 189.2 °
Time of passage of the perihelion September 10, 1864
Sidereal period 612 a 8.0 M
Mean orbital velocity 3.478 km / s
Physical Properties
Medium diameter approx. 501 km
Albedo 0.07-0.09
Absolute brightness 4.6 - 5.0 mag
history
Explorer Scott S. Sheppard
Chadwick A. Trujillo
Date of discovery March 25, 2014
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

2014 FC 69 is a large Trans-Neptunian Object , the web dynamically as scattered disc object is classified. Because of its size, the asteroid is a dwarf planet candidate .

discovery

2014 FC 69 was spotted by Scott Sheppard and Chad Trujillo in images taken on March 25, 2014 with the 4.0 m Cerro Tololo telescope. The discovery was announced on February 11, 2015.

The asteroid's observation sheet begins with the official discovery observation on March 25, 2014. In April 2017, a total of 10 observations were made over a period of 302 days. The last observation so far was carried out in January 2015 at the Gemini South Observatory . (As of February 19, 2019)

properties

Orbit

2014 FC 69 orbits the sun in 612.67 years in an elliptical orbit between 40.43  AU and 103.83 AU from its center. The orbit eccentricity is 0.439, the orbit is inclined 30.13 ° to the ecliptic . The planetoid is currently 84.92 AU from the sun. He passed through perihelion for the last time in 1864, so the next perihelion should take place in 2477.

Both Marc Buie ( DES ) and the Minor Planet Center classify the planetoid as SDO ; the latter also generally lists it as a "distant object" .

size

A diameter of around 501 km is currently assumed, based on a reflectivity of 7% and an absolute brightness of 5.0  m . The apparent magnitude of 2014 FC 69 is 24.11  m .

Since it can be assumed that 2014 FC 69 is in hydrostatic equilibrium due to its size and must therefore be largely round, it should meet the criteria for classification as a dwarf planet . Mike Brown believes that 2014 FC 69 is likely a dwarf planet.

Provisions of the diameter for 2014 FC 69
year Dimensions km source
2018 533.0 Johnston
2018 501.0 Brown
The most precise determination is marked in bold .

See also

Web links

Individual evidence

  1. ^ A b Marc W. Buie : Orbit Fit and Astrometric record for 14FC69 . SwRI (Space Science Department). Retrieved February 19, 2019.
  2. ↑ a b MPC : MPEC List Of Centaurs and Scattered-Disk Objects . IAU . Retrieved February 19, 2019.
  3. ↑ a b c 2014 FC69 at the IAU Minor Planet Center (English) Retrieved on February 19, 2019.
  4. ↑ v ≈ π * a / period (1 + sqrt (1-e²))
  5. ↑ MPC : MPEC 2015-C52: 2014 FC69 . IAU . February 11, 2015. Retrieved February 19, 2019.
  6. ↑ 2014 FC69 in the Small-Body Database of the Jet Propulsion Laboratory (English). Retrieved February 19, 2019. Template: JPL Small-Body Database Browser / Maintenance / Alt
  7. ↑ 2014 FC69 in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
  8. ↑ a b Mike Brown : How many dwarf planets are there in the outer solar system? . CalTech . November 12, 2018. Retrieved February 19, 2019.
  9. ^ Wm. R. Johnston: List of Known Trans-Neptunian Objects . Johnston's Archives. October 7, 2018. Retrieved February 19, 2019.