(523684) 2014 CQ23

Last updated

(523684) 2014 CQ23
Discovery [1]
Discovered by Pan-STARRS 1
Discovery site Haleakalā Obs.
Discovery date13 March 2011
Designations
(523684) 2014 CQ23
2014 CQ23
TNO [2]  · cubewano [3]
p-DP [4]  · distant [1]
Orbital characteristics [2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 2 ·1 [1]
Observation arc 16.04 yr (5,857 d)
Aphelion 53.658 AU
Perihelion 38.670 AU
46.164 AU
Eccentricity 0.1623
313.66 yr (114,565 d)
302.71°
0° 0m 11.16s / day
Inclination 8.6867°
30.646°
236.86°
Physical characteristics
Mean diameter
321  km (est.) [3]
343 km(est.) [4]
0.08(assumed) [4]
0.09(assumed) [3]
5.7 [1] [2]

    (523684) 2014 CQ23 (provisional designation 2014 CQ23) is a trans-Neptunian object and cubewano from the Kuiper belt, located in the outermost region of the Solar System. It was discovered on 13 March 2011, by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States. [1] The classical Kuiper belt object belongs to the hot population and is a dwarf planet candidate, as it measures approximately 330 kilometers (210 miles) in diameter.

    Contents

    Orbit and classification

    2014 CQ23 is a cubewano, a classical, low-eccentricity object in the Kuiper belt, located in between the two resonant plutino and twotino populations, and belongs to the "stirred" hot population rather than to the cold population with low inclinations.

    It orbits the Sun at a distance of 38.7–53.7  AU once every 313 years and 8 months (114,565 days; semi-major axis of 46.16 AU). Its orbit has an eccentricity of 0.16 and an inclination of 9° with respect to the ecliptic. [2]

    Numbering and naming

    This minor planet was numbered by the Minor Planet Center on 25 September 2018 and received the number 523687 in the minor planet catalog ( M.P.C. 111779). [5] As of 2018, it has not been named. [1]

    Physical characteristics

    According to the American astronomer Michael Brown, 2014 CQ23 measures 343 kilometers in diameter based on an assumed albedo of 0.08. [4] On his website, Michael Brown lists this object as a "possible" dwarf planet (200–400 km), which is the category with the lowest certainty in his 5-class taxonomic system. [4] Similarly, Johnston's archive estimates a diameter 321 kilometers using an albedo of 0.09. [3] As of 2018, neither a spectral type or the color indices have been determined, nor a rotational lightcurve has been obtained from spectroscopic and photometric observations. The body's color, rotation period, pole and shape remain unknown. [2] [6]

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    (523683) 2014 CP23, provisional designation 2014 CP23, is a trans-Neptunian object from the scattered disc located in the outermost region of the Solar System It was discovered on 29 October 2011, by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States. The dwarf planet candidate measures approximately 267 kilometers (170 miles) in diameter.

    (523687) 2014 DF143 (provisional designation 2014 DF143) is a trans-Neptunian object and cubewano from the Kuiper belt, located in the outermost region of the Solar System. It was discovered on 12 April 2011, by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States. The classical Kuiper belt object belongs to the hot population and is a dwarf planet candidate, as it measures approximately 350 kilometers (220 miles) in diameter.

    (495603) 2015 AM281 (provisional designation 2015 AM281) is a resonant trans-Neptunian object in the outermost region of the Solar System, guesstimated at approximately 470 kilometers (290 miles) in diameter. It was discovered on 13 March 2010, by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States.

    (505624) 2014 GU53 (provisional designation 2014 GU53) is a trans-Neptunian object and cubewano from the Kuiper belt, located in the outermost region of the Solar System. It was discovered on 8 April 2014, by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States. The classical Kuiper belt object belongs to the hot population and is a dwarf planet candidate, as it measures approximately 330 kilometers (210 miles) in diameter.

    References

    1. 1 2 3 4 5 6 "523684 (2014 CQ23)". Minor Planet Center. Retrieved 30 November 2018.
    2. 1 2 3 4 5 "JPL Small-Body Database Browser: 523684 (2014 CQ23)" (2018-03-18 last obs.). Jet Propulsion Laboratory . Retrieved 30 November 2018.
    3. 1 2 3 4 Johnston, Wm. Robert (7 October 2018). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 30 November 2018.
    4. 1 2 3 4 5 Brown, Michael E. "How many dwarf planets are there in the outer solar system?". California Institute of Technology . Retrieved 29 November 2018.
    5. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 30 November 2018.
    6. ↑ "LCDB Data for (523684)". Asteroid Lightcurve Database (LCDB). Retrieved 30 November 2018.
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