Astronomy:(120348) 2004 TY364

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(120348) 2004 TY364
Discovery
Discovered byM. E. Brown
C. Trujillo
D. L. Rabinowitz
Discovery sitePalomar Obs.
Discovery date3 October 2004
Designations
(120348) 2004 TY364
Minor planet categoryTNO[1] · cubewano[2]
SCATEXTD[3]
Other[4]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc11834 days (32.40 yr)
Earliest precovery date16 July 1983
|{{{apsis}}}|helion}}41.384 astronomical unit|AU (6.1910 Tm)
|{{{apsis}}}|helion}}36.176 AU (5.4119 Tm)
38.780 AU (5.8014 Tm)
Eccentricity0.067140
Orbital period241.50 yr (88208.5 d)
Mean anomaly265.93°
Mean motion0° 0m 14.692s / day
Inclination24.8499°
Longitude of ascending node140.6141°
|{{{apsis}}}|helion}}≈ 12 May 2079[5]
±6 days
359.71°
Earth MOID35.1896 AU (5.26429 Tm)
Jupiter MOID30.8216 AU (4.61085 Tm)
Physical characteristics
Dimensions512+37
−40
 km
[6]
Rotation period11.70 h (0.488 d)[1]
Geometric albedo0.107+0.020
−0.015
[6]
Apparent magnitude20.4[7]
Absolute magnitude (H)4.520±0.070,[6] 4.8[1]


(120348) 2004 TY364, provisionally known as 2004 TY364, is a trans-Neptunian object. It is an inner classical Kuiper belt object in the definition by Gladman, Marsden, and Van Laerhoven (e<0.24).[2] Its inclination of almost 25 degrees disqualifies it as such in Marc Buie's definition .[3] It is also not listed as a scattered disc object by the Minor Planet Center.[8] It was discovered by Michael E. Brown, Chad Trujillo and David L. Rabinowitz on October 3, 2004 at the Palomar Observatory.

Light-curve analysis suggests it is not a dwarf planet.[9]

(As of 2014), it is 39.2 AU from the Sun.[7]

References

  1. 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 120348 (2004 TY364)". https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=120348. 
  2. 2.0 2.1 Nomenclature in the outer Solar System
  3. 3.0 3.1 Marc W. Buie. "Orbit Fit and Astrometric record for 120348". SwRI (Space Science Department). http://www.boulder.swri.edu/~buie/kbo/astrom/120348.html. 
  4. "MPEC 2010-S44 :Distant Minor Planets (2010 OCT. 11.0 TT)". IAU Minor Planet Center. 2010-09-25. https://minorplanetcenter.net/mpec/K10/K10S44.html. 
  5. JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)
  6. 6.0 6.1 6.2 Lellouch, E.; Santos-Sanz, P.; Lacerda, P.; Mommert, M.; Duffard, R.; Ortiz, J. L.; Müller, T. G.; Fornasier, S. et al. (September 2013). ""TNOs are Cool": A survey of the trans-Neptunian region. IX. Thermal properties of Kuiper belt objects and Centaurs from combined Herschel and Spitzer observations". Astronomy & Astrophysics 557: A60. doi:10.1051/0004-6361/201322047. Bibcode2013A&A...557A..60L. http://www.aanda.org/articles/aa/pdf/2013/09/aa22047-13.pdf. Retrieved 7 November 2014. 
  7. 7.0 7.1 "AstDys (120348) 2004TY364 Ephemerides". Department of Mathematics, University of Pisa, Italy. https://newton.spacedys.com/astdys/index.php?pc=1.1.3.0&n=120348. 
  8. "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. https://www.minorplanetcenter.net/iau/lists/Centaurs.html. 
  9. Gonzalo Tancredi; Sofía Favre (13 October 2008). "Dwarf Planet & Plutoid Headquarters". Portal Uruguayo de Astronomía. http://www.astronomia.edu.uy/dwarfplanet/list.html.  (Which are the dwarfs in the Solar System?)

External links