2010 KZ39

2010 KZ₃₉
Discovery
Discovered by	A. Udalski; S. S. Sheppard; M. Szymanski; C. Trujillo;
Discovery site	Las Campañas Obs.; (first observed)
Discovery date	21 May 2010; (first observed)
Designations
MPC designation	2010 KZ39
Minor planet category	TNO; Detached (SDO-EXT);
Orbital characteristics
	Epoch 2024 October 17 (JD 2460600.5)
	Uncertainty parameter 4
Observation arc	11.94 yr (4,361 days)
Aphelion	47.55 AU
Perihelion	42.48 AU
Semi-major axis	45.01 AU
Eccentricity	0.0563
Orbital period (sidereal)	302.0 yr (110,300 days)
Mean anomaly	256.5°
Mean motion	0° 0m 11.736s / day
Inclination	26.156°
Longitude of ascending node	53.277°
Time of perihelion	≈ 6 May 2110; ±5 months
Argument of perihelion	322.6°
Physical characteristics
Geometric albedo	0.10 (assumed)
Apparent magnitude	20.7
Absolute magnitude (H)	4.02;

2010 KZ₃₉ is a trans-Neptunian object orbiting the Sun as a detached object in the outer reaches of the Solar System. The object was first observed on 21 May 2010 by astronomers Andrzej Udalski, Scott Sheppard, M. Szymanski and Chad Trujillo at the Las Campañas Observatory in Chile.^[1]^[3]

Description

Follow-up images of 2010 KZ₃₉ taken at Las Campañas Obs.

2010 KZ₃₉ orbits the Sun at a distance of 42.5–47.6 AU once every 302 years, similar to Makemake, Chaos and other bodies that circle the Sun in 6:11 resonance to Neptune. Its orbit has an eccentricity of 0.056 and an inclination of 26° with respect to the ecliptic.

Using the best-fit values for its orbit, it is expected to come to perihelion in 2109.^[4] It has been observed 50 times over 12 years and has an uncertainty parameter of 4.^[1] As of 2016, is 46.1 AU from the Sun.^[11] The body's spectral type as well as its rotation period remain unknown.

References

^ ^a ^b ^c "(2010 KZ39)". Minor Planet Center. Retrieved 21 September 2016.
^ "MPEC 2010-L38 : 2010 KZ39". IAU Minor Planet Center. 8 June 2010. Retrieved 3 December 2010.
^ ^a ^b All four named discoverers are uncredited in sources.
^ ^a ^b ^c ^d "JPL Small-Body Database Browser: (2010 KZ39)" (2012-03-20 last obs.). Jet Propulsion Laboratory. Retrieved 3 April 2017.
^ ^a ^b Marc W. Buie. "Orbit Fit and Astrometric record for 10KZ39" (last observation: 2012-03-20 using 28 of 28 observations over 1.83 years). SwRI (Space Science Department). Retrieved 18 August 2011.
^ JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)
^ ^a ^b "LCDB Data for 2010 KZ39". Asteroid Lightcurve Database (LCDB). Retrieved 3 April 2017.
^ Dan Bruton. "Conversion of Absolute Magnitude to Diameter for Minor Planets". Department of Physics & Astronomy (Stephen F. Austin State University). Archived from the original on 23 July 2011. Retrieved 18 August 2011.
^ Benecchi, Susan D.; Sheppard, Scott S. (May 2013). "Light Curves of 32 Large Transneptunian Objects". The Astronomical Journal. 145 (5): 19. arXiv:1301.5791. Bibcode:2013AJ....145..124B. doi:10.1088/0004-6256/145/5/124. S2CID 54183985. Retrieved 3 April 2017.
^ Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Retrieved 14 August 2019.
^ ^a ^b "AstDyS: 2010 KZ39 Ephemerides". AstDyS. Retrieved 7 April 2014.

External links

Large New Trans-Neptunian Object 2010 KZ₃₉ Discovered (BAA Blog : 9 June 2010)
OCKS: OGLE Carnegie Kuiper belt Survey (OCKS is a Southern sky survey searching for Kuiper Belt objects and dwarf planets)
2010 KZ39 at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
2010 KZ39 at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

[MPC-object-1] "(2010 KZ39)". Minor Planet Center. Retrieved 21 September 2016.

[MPEC2010-L38-2] "MPEC 2010-L38 : 2010 KZ39". IAU Minor Planet Center. 8 June 2010. Retrieved 3 December 2010.

[Uncred-3] All four named discoverers are uncredited in sources.

[jpldata-4] "JPL Small-Body Database Browser: (2010 KZ39)" (2012-03-20 last obs.). Jet Propulsion Laboratory. Retrieved 3 April 2017.

[Buie-5] Marc W. Buie. "Orbit Fit and Astrometric record for 10KZ39" (last observation: 2012-03-20 using 28 of 28 observations over 1.83 years). SwRI (Space Science Department). Retrieved 18 August 2011.

[perihelion-6] JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)

[lcdb-7] "LCDB Data for 2010 KZ39". Asteroid Lightcurve Database (LCDB). Retrieved 3 April 2017.

[bruton-8] Dan Bruton. "Conversion of Absolute Magnitude to Diameter for Minor Planets". Department of Physics & Astronomy (Stephen F. Austin State University). Archived from the original on 23 July 2011. Retrieved 18 August 2011.

[Benecchi-2013-9] Benecchi, Susan D.; Sheppard, Scott S. (May 2013). "Light Curves of 32 Large Transneptunian Objects". The Astronomical Journal. 145 (5): 19. arXiv:1301.5791. Bibcode:2013AJ....145..124B. doi:10.1088/0004-6256/145/5/124. S2CID 54183985. Retrieved 3 April 2017.

[Brown-dplist-10] Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Retrieved 14 August 2019.

[AstDyS-11] "AstDyS: 2010 KZ39 Ephemerides". AstDyS. Retrieved 7 April 2014.

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2010 KZ39

Description

References

External links

Information related to 2010 KZ39

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