Astronomy:(145452) 2005 RN43
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Short description: Classical Kuiper belt object
 Hubble Space Telescope image of 2005 RN43, taken on April 2010 | |
| Discovery[1] | |
|---|---|
| Discovered by | A. C. Becker A. W. Puckett J. M. Kubica |
| Discovery site | APO |
| Discovery date | 10 September 2005 |
| Designations | |
| (145452) 2005 RN43 | |
| Minor planet category | TNO Cubewano[2][3] Extended (DES)[4] |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 22376 days (61.26 yr) |
| Earliest precovery date | 2 June 1954 |
| |{{{apsis}}}|helion}} | 42.146 astronomical unit|AU (6.3050 Tm) |
| |{{{apsis}}}|helion}} | 40.571 AU (6.0693 Tm) |
| 41.359 AU (6.1872 Tm) | |
| Eccentricity | 0.019047 |
| Orbital period | 265.99 yr (97151.5 d) |
| Average Orbital speed | 0.0037°/d |
| Mean anomaly | 338.28° |
| Mean motion | 0° 0m 13.34s / day |
| Inclination | 19.313° |
| Longitude of ascending node | 186.93° |
| |{{{apsis}}}|helion}} | ≈ 15 June 2029[5] ±9 days |
| 174.88° | |
| Earth MOID | 39.5672 AU (5.91917 Tm) |
| Jupiter MOID | 35.6155 AU (5.32800 Tm) |
| TJupiter | 5.446 |
| Physical characteristics | |
| Dimensions | 679+55 −73 km[6] |
| Rotation period | 6.95 h (0.290 d) |
| Sidereal rotation period | 5.62 h[2] |
| Geometric albedo | 0.107+0.029 −0.018[6] |
| IR–RR (red)[6] B–V=0.95±0.02[7] V–R=0.59±0.01[7] V–I=1.08±0.02[7] | |
| Apparent magnitude | 20.1[8] |
| Absolute magnitude (H) | 3.89±0.05[6] 3.9[2] |
(145452) 2005 RN43 (provisional designation 2005 RN43) is a classical Kuiper belt object. It has an estimated diameter of 679+55
−73 km.[6] It was discovered by Andrew Becker, Andrew Puckett and Jeremy Kubica on 10 September 2005 at Apache Point Observatory in Sunspot, New Mexico. Brown estimates that it is possibly a dwarf planet.[9][10]
Classification
The Minor Planet Center (MPC) classifies it as a cubewano.[3] But since this object has an inclination of 19.3°, the Deep Ecliptic Survey (DES) classifies it as scattered-extended.[4]
It has been observed 119 times over thirteen oppositions, with precovery images back to 1954.[2]
See also
References
- ↑ "List Of Transneptunian Objects". Minor Planet Center. https://www.minorplanetcenter.net/iau/lists/TNOs.html. Retrieved 22 August 2016.
- ↑ 2.0 2.1 2.2 2.3 2.4 "JPL Small-Body Database Browser: 145452 (2005 RN43)". https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=145452. Retrieved 11 April 2016.
- ↑ 3.0 3.1 "MPEC 2009-R09 :Distant Minor Planets (2009 September 16.0 TT)". IAU Minor Planet Center. 2009-09-04. https://minorplanetcenter.net/mpec/K09/K09R09.html. Retrieved 2010-01-08.
- ↑ 4.0 4.1 Marc W. Buie. "Orbit Fit and Astrometric record for 145452". SwRI (Space Science Department). http://www.boulder.swri.edu/~buie/kbo/astrom/145452.html. Retrieved 2009-10-04.
- ↑ JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)
- ↑ 6.0 6.1 6.2 6.3 6.4 Vilenius, E. et al. (2012). ""TNOs are Cool": A survey of the trans-Neptunian region VI. Herschel/PACS observations and thermal modeling of 19 classical Kuiper belt objects". Astronomy & Astrophysics 541: A94. doi:10.1051/0004-6361/201118743. Bibcode: 2012A&A...541A..94V.
- ↑ 7.0 7.1 7.2 Belskaya, Irina N.; Barucci, Maria A.; Fulchignoni, Marcello; Lazzarin, M. (April 2015). "Updated taxonomy of trans-neptunian objects and centaurs: Influence of albedo". Icarus 250: 482–491. doi:10.1016/j.icarus.2014.12.004. Bibcode: 2015Icar..250..482B.
- ↑ "AstDys (145452) 2005RN43 Ephemerides". Department of Mathematics, University of Pisa, Italy. https://newton.spacedys.com/astdys/index.php?pc=1.1.3.0&n=145452. Retrieved 2009-12-07.
- ↑ Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Archived from the original on 2011-10-18. https://web.archive.org/web/20111018154917/http://www.gps.caltech.edu/~mbrown/dps.html. Retrieved 2011-08-25.
- ↑ Tancredi, Gonzalo (2009), "Physical and dynamical characteristics of icy "dwarf planets" (plutoids)", Proceedings of the International Astronomical Union 5: 173–185, doi:10.1017/S1743921310001717, Bibcode: 2010IAUS..263..173T
External links
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| Asteroid belt |
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| Centaurs |
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| Plutinos |
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| Twotinos |
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| Cubewanos |
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| Scattered disc |
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| Detached objects |
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| Sednoids |
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| Other / unknown resonances |
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