(523681) 2014 BV 64

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Asteroid
(523681) 2014 BV 64
Properties of the orbit ( animation )
Epoch:  April 27, 2019 ( JD 2,458,600.5)
Orbit type DO or
CKBO («Hot») ,
«Distant Object»
Major semi-axis 45.759  AU
eccentricity 0.147
Perihelion - aphelion 39.018 AU - 52.501 AU
Inclination of the orbit plane 15.5 °
Length of the ascending node 279.4 °
Argument of the periapsis 347.1 °
Time of passage of the perihelion August 16, 2101
Sidereal period 309 a 6.6 M
Mean orbital velocity 4.367 km / s
Physical Properties
Medium diameter approx. 513 km
Albedo 0.08-0.09
Absolute brightness 4.7 likes
history
Explorer Pan-STARRS :
B. Gibson,
T. Goggia,
N. Primak,
A. Schultz,
M. Willman
Date of discovery January 25, 2012
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.

(523681) 2014 BV 64 is a large trans-Neptunian object that is classified as either Detached Object , Cubewano or, more generally, as a “Distant Object” in terms of orbital dynamics . Because of its size, the asteroid is a dwarf planet candidate .

discovery

2014 BV 64 was discovered on January 25, 2012 by a team of astronomers consisting of B. Gibson, T. Goggia, N. Primak, A. Schultz and M. Willman with the 1.8 m Pan-STARRS telescope (PS1 ) discovered at Haleakalā Observatory ( Maui ). The discovery was announced on July 16, 2016, the asteroid was given the minor planet number 523681 on September 25, 2018 .

After its discovery, BV 64 could be identified in photos up to February 11, 2004, taken as part of Near Earth Asteroid Tracking at the Palomar Observatory , and thus its observation period was extended by 8 years in order to calculate its orbit more precisely . In October 2018, a total of 220 observations over a period of 15 years were available. The last observation so far was again carried out in March 2018 at the Pan-STARRS telescope. (As of February 9, 2019)

properties

Orbit

2014 BV 64 orbits the sun in 309.55 years on a slightly elliptical orbit between 36.23  AU and 52.50 AU from its center. The eccentricity of the orbit is 0.147, the orbit is inclined 15.46 ° to the ecliptic . The planetoid is currently 47.40 AU from the Sun and 46.48 AU from Earth . The next time he passes through perihelion in 2101, the last perihelion should have been in 1792.

Marc Buie ( DES ) classifies the planetoid as an extended SDO (ESDO or DO ), while the Minor Planet Center classifies it generally as a “distant object” and as a non-SDO. The Johnston's Archive lists it as Cubewano .

Size and rotation

A diameter of around 513 km is currently assumed, based on a reflectivity of 8% and an absolute brightness of 4.9  m . The apparent magnitude of 2014 BV 64 is 21.59  m .

Since it can be assumed that 2014 BV 64 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 assumes that 2014 BV 64 is likely a dwarf planet.

Provisions of the diameter for 2014 BV 64
year Dimensions km source
2018 509.0 Johnston
2018 513.0 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 523681 . SwRI (Space Science Department). Retrieved February 9, 2019.
  2. ↑ a b c (523681) 2014 BV64 at the IAU Minor Planet Center (English) Retrieved on February 9, 2019.
  3. ↑ v ≈ π * a / period (1 + sqrt (1-e²))
  4. ↑ MPC : MPEC 2016-O40: 2014 BV64 . IAU . July 16, 2016. Retrieved February 9, 2019.
  5. ↑ (523681) 2014 BV64 in the Small-Body Database of the Jet Propulsion Laboratory (English). Retrieved February 9, 2019. Template: JPL Small-Body Database Browser / Maintenance / Alt
  6. ↑ MPC : MPEC List Of Centaurs and Scattered-Disk Objects . IAU . Retrieved February 9, 2019.
  7. ^ A b Wm. R. Johnston: List of Known Trans-Neptunian Objects . Johnston's Archives. October 7, 2018. Retrieved February 9, 2019.
  8. ↑ (523681) 2014 BV64 in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
  9. ↑ a b Mike Brown : How many dwarf planets are there in the outer solar system? . CalTech . November 12, 2018. Retrieved February 9, 2019.