19848 Yeungchuchiu

Last updated

19848 Yeungchuchiu
019848-asteroid shape model (19848) Yeungchuchiu.png
Yeungchuchiu modeled from its lightcurve
Discovery [1]
Discovered by W. K. Yeung
Discovery site Desert Beaver Obs.
Discovery date2 October 2000
Designations
(19848) Yeungchuchiu
Named after
Chu Chiu Yeung
(discoverer's father) [2]
2000 TR ·1998 KR38
1999 SY6
main-belt  · Eos [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 34.82 yr (12,718 days)
Aphelion 3.2372 AU
Perihelion 2.7768 AU
3.0070 AU
Eccentricity 0.0766
5.21 yr (1,905 days)
94.290°
0° 11m 20.4s / day
Inclination 11.061°
54.759°
350.16°
Physical characteristics
Mean diameter
11.69±0.55  km [4]
12.700±0.134 [5]
12.90 km (calculated) [3]
13.242±0.282 km [6]
3.450±0.002  h [7]
3.4508±0.0003 h [8]
0.14 (assumed) [3]
0.170±0.020 [4] [5]
0.2107±0.0250 [6]
S [3]
12.2 [1] [3] [4]  ·11.7 [6]  ·12.227±0.002(R) [8]  ·12.49±0.28 [9]

    19848 Yeungchuchiu (provisional designation 2000 TR) is a stony Eos asteroid from the outer region of the asteroid belt, approximately 12 kilometers (7.5 miles) in diameter. It was discovered on 2 October 2000 by Canadian amateur astronomer William Yeung at the Desert Beaver Observatory in Arizona, United States. It is the largest object found by the discoverer, just 1°.2 west of Jupiter, who named it after his father, Chu Chiu Yeung. [2] [10]

    Contents

    Orbit and classification

    Yeungchuchiu is a member of the Eos family, an orbital group of more than 4,000 asteroids, which are known for mostly being of stony composition. It orbits the Sun in the outer main-belt at a distance of 2.8–3.2  AU once every 5 years and 3 months (1,905 days). Its orbit has an eccentricity of 0.08 and an inclination of 11° with respect to the ecliptic. [1] The first precovery was taken at the Australian Siding Spring Observatory in 1982, extending the asteroid's observation arc by 18 years prior to its discovery. [10]

    Naming

    This minor planet was named by the discoverer after his father, Chu Chiu Yeung (born 1925), in gratitude for his unconditional support. [2] The approved naming citation was published by the Minor Planet Center on 9 March 2001 ( M.P.C. 42368). [11]

    Physical characteristics

    Rotation period

    Lightcurve based 3D-model of Yeungchuchiu 19848Yeungchuchiu (Lightcurve Inversion).png
    Lightcurve based 3D-model of Yeungchuchiu

    In November 2005, a rotational lightcurve of Yeungchuchiu was obtained from photometric observations by the discoverer at the Desert Eagle Observatory in Arizona. Lightcurve analysis gave a well-defined rotation period of 3.450 hours with a brightness variation of 0.70 magnitude ( U=3 ). [7] The large amplitude suggests that the body is of non-spherical shape and that the long axis is almost twice as long as the short axis. It is likely that the rotational axis was almost perpendicular to the observation's line-of-sight. [7] A second lightcurve was obtained at the Palomar Transient Factory in September 2010, and gave a concurring period of 3.4508±0.0003 hours with an amplitude of 0.63 in magnitude ( U=2 ). [8]

    Diameter and albedo

    According to the survey carried out by NASA's Wide-field Infrared Survey Explorer and its subsequent NEOWISE mission, the asteroid measures 11.7 and 13.2 kilometers in diameter with an albedo for its surface of 0.17 and 0.21, respectively. [6] [4] The Collaborative Asteroid Lightcurve Link assumes an albedo for stony asteroids of 0.21 and calculates a diameter of 12.9 kilometers with an absolute magnitude of 12.2. [3]

    Related Research Articles

    6433 Enya, provisional designation 1978 WC, is a stony background asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 18 November 1978, by Czech astronomer Antonín Mrkos at the Kleť Observatory in the Czech Republic. It was named for Irish musician Enya.

    1151 Ithaka, provisional designation 1929 RK, is a carbonaceous asteroid from the inner regions of the asteroid belt, approximately 14 kilometers in diameter. It was discovered by Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in 1929, and later named for the Greek island of Ithaca.

    3567 Alvema, provisional designation 1930 VD, is a dark asteroid from the middle region of the asteroid belt, approximately 14 kilometers in diameter. It was discovered by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle, on 15 November 1930. It was named after the discoverer's three great-granddaughters Aline, Vérionique and Martine.

    <span class="mw-page-title-main">2839 Annette</span> Flora family asteroid

    2839 Annette is a bright Flora asteroid from the inner regions of the asteroid belt. It was discovered on 5 October 1929, by American astronomer Clyde Tombaugh at Lowell Observatory during his search for Pluto. The presumed S-type asteroid has a rotation period of 10.5 hours and measures approximately 5 kilometers in diameter. It was named after the discoverer's daughter.

    11277 Ballard, provisional designation 1988 TW2, is a Phocaea asteroid from the inner regions of the asteroid belt, approximately 6.3 kilometers (3.9 miles) in diameter. It was discovered on 8 October 1988, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California. The assumed S-type asteroid has a rotation period of at least 10 hours. It was named for American marine scientist Robert Ballard.

    2033 Basilea, provisional designation 1973 CA, is a stony asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 6 February 1973, by astronomer Paul Wild at the Zimmerwald Observatory near Bern, Switzerland. The asteroid was named for the Swiss city of Basel.

    1267 Geertruida, provisional designation 1930 HD, is a carbonaceous background asteroid from the inner regions of the asteroid belt, approximately 20 kilometers in diameter. Discovered by astronomer Hendrik van Gent at Johannesburg Observatory in 1930, the asteroid was later named after Geertruid Pels, sister of Dutch astronomer Gerrit Pels.

    2571 Geisei, provisional designation 1981 UC, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered by Japanese astronomer Tsutomu Seki at Geisei Observatory on 23 October 1981, and named for the Japanese village of Geisei.

    2126 Gerasimovich, provisional designation 1970 QZ, is a stony background asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 30 August 1970, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named after Russian astronomer Boris Gerasimovich.

    2324 Janice, provisional designation 1978 VS4, is a dark background asteroid from the outer regions of the asteroid belt, approximately 25 kilometers (16 miles) in diameter. It was discovered on 7 November 1978, by American astronomers Eleanor Helin and Schelte Bus at the Palomar Observatory in California. The asteroid was named for Janice Cline at Caltech. The presumably C-type asteroid has a rotation period of 23.2 hours.

    2173 Maresjev, provisional designation 1974 QG1, is a dark background asteroid from the outer regions of the asteroid belt, approximately 28 kilometers (17 miles) in diameter. It was discovered on 22 August 1974, by Soviet–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. It was named for Soviet war veteran Alexey Maresyev. The assumed C-type asteroid has a tentative rotation period of 11.6 hours.

    1303 Luthera, provisional designation 1928 FP, is a dark asteroid and the parent body of the Luthera family, located in the outermost regions of the asteroid belt. It measures approximately 90 kilometers in diameter. The asteroid was discovered on 16 March 1928, by astronomer Friedrich Schwassmann at the Bergedorf Observatory in Hamburg, Germany, and later named after German astronomer Robert Luther.

    1455 Mitchella, provisional designation 1937 LF, is a Florian asteroid, slow rotator and suspected tumbler from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 5 June 1937, by astronomer Alfred Bohrmann at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after American astronomer Maria Mitchell.

    2043 Ortutay, provisional designation 1936 TH, is a dark asteroid from the outer regions of the asteroid belt, approximately 45 kilometers in diameter. The asteroid was discovered by Hungarian astronomer György Kulin at the Konkoly Observatory, Budapest, on 12 November 1936. It was named after Hungarian ethnographer Gyula Ortutay.

    2648 Owa, provisional designation 1980 VJ, is a background asteroid from the Flora region of the inner asteroid belt, approximately 6 kilometers in diameter. It was discovered on 8 November 1980, by American astronomer Edward Bowell at the Anderson Mesa Station near Flagstaff, Arizona, in the United States. The presumably S-type asteroid has a rotation period of 3.56 hours. It was named for the word "rock" in the Native American Hopi language.

    2391 Tomita, provisional designation 1957 AA, is a Nysian asteroid from the inner regions of the asteroid belt, approximately 15 kilometers in diameter. The asteroid was discovered on 9 January 1957, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. It was named after Japanese astronomer Kōichirō Tomita.

    3823 Yorii, provisional designation 1988 EC1, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 11 kilometers in diameter.

    4760 Jia-xiang, provisional designation 1981 GN1, is a background asteroid from the inner regions of the asteroid belt, approximately 5 kilometers (3 miles) in diameter. It was discovered on 1 April 1981, by astronomers at Harvard University's Oak Ridge Observatory in Massachusetts, United States. The presumed stony S-type asteroid was named after Chinese astronomer Zhang Jiaxiang. It has a rotation period of 14.96 hours.

    <span class="mw-page-title-main">1632 Sieböhme</span>

    1632 Sieböhme, provisional designation 1941 DF, is an asteroid and relatively slow rotator from the middle region of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 26 February 1941, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. It was later named after ARI-astronomer Siegfried Böhme.

    2195 Tengström, provisional designation 1941 SP1, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 27 September 1941, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland, and named for Swedish geodesist Erik Tengström.

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 19848 Yeungchuchiu (2000 TR)" (2017-05-04 last obs.). Jet Propulsion Laboratory . Retrieved 27 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(19848) Yeungchuchiu". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 859. doi:10.1007/978-3-540-29925-7_9589. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 "LCDB Data for (19848) Yeungchuchiu". Asteroid Lightcurve Database (LCDB). Retrieved 17 May 2016.
    4. 1 2 3 4 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv: 1209.5794 . Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8 . Retrieved 17 May 2016.
    5. 1 2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv: 1109.4096 . Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68 . Retrieved 3 December 2016.
    6. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv: 1109.6407 . Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90 . Retrieved 17 May 2016.
    7. 1 2 3 Yeung, Kwong W. (September 2006). "Lightcurve analysis for 19848 Yeungchuchiu". The Minor Planet Bulletin. 33 (3): 49. Bibcode:2006MPBu...33...49Y. ISSN   1052-8091 . Retrieved 17 May 2016.
    8. 1 2 3 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv: 1504.04041 . Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75 . Retrieved 17 May 2016.
    9. ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv: 1506.00762 . Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007 . Retrieved 17 May 2016.
    10. 1 2 "19848 Yeungchuchiu (2000 TR)". Minor Planet Center. Retrieved 1 January 2016.
    11. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 17 May 2016.
    This page is based on this Wikipedia article
    Text is available under the CC BY-SA 4.0 license; additional terms may apply.
    Images, videos and audio are available under their respective licenses.