7648 Tomboles

Last updated

7648 Tomboles
Discovery [1]
Discovered by Y. Mizuno
T. Furuta
Discovery site Kani Obs.
Discovery date8 October 1989
Designations
(7648) Tomboles
Named after
Tom Boles [1]
(Scottish astronomer)
1989 TB1 ·1981 CE
1984 BK1 ·1986 WD10
main-belt [1] [2]  ·(inner)
background [3]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc 36.42 yr (13,301 d)
Aphelion 2.3980 AU
Perihelion 1.9152 AU
2.1566 AU
Eccentricity 0.1119
3.17 yr (1,157 d)
316.41°
0° 18m 40.32s / day
Inclination 2.7210°
11.756°
53.726°
Physical characteristics
3.914±0.123  km [4]
0.200±0.027 [4]
14.3 [1] [2]

    7648 Tomboles, provisional designation 1989 TB1, is a background asteroid from the inner regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 8 October 1989, by Japanese astronomers Yoshikane Mizuno and Toshimasa Furuta at the Kani Observatory in Kani, Japan. The asteroid was named after Scottish amateur astronomer Tom Boles. [1]

    Contents

    Orbit and classification

    Tomboles is a non-family asteroid from the main belt's background population. [3] It orbits the Sun in the inner main-belt at a distance of 1.9–2.4  AU once every 3 years and 2 months (1,157 days; semi-major axis of 2.16 AU). Its orbit has an eccentricity of 0.11 and an inclination of 3° with respect to the ecliptic. [2]

    The body's observation arc begins with its first observation as 1981 CE at the Klet Observatory in February 1981. [1]

    Physical characteristics

    Tomboles has an absolute magnitude of 14.3. [1] [2] While its spectral type is unknown, it is likely a stony S-type asteroid based on the albedo (see below) derived from observations with the Wide-field Infrared Survey Explorer (WISE). As of 2018, no rotational lightcurve of this asteroid has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown. [2]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's WISE telescope, Tomboles measures 3.91 kilometers in diameter and its surface has an albedo of 0.20. [4]

    Naming

    This minor planet was named after Scottish amateur astronomer Tom Boles (born 1944) a discoverer of a minor planet (also see 84417 Ritabo) and a record-number of supernovae, using a robotic telescope at Coddenham Observatory ( 234 ) in Coddenham, Suffolk, in eastern England. Boles has been the President of the British Astronomical Association from 2003 to 2005. [1]

    The official naming citation was published by the Minor Planet Center on 13 November 2008 ( M.P.C. 64311). [5]

    Related Research Articles

    <span class="mw-page-title-main">77185 Cherryh</span> Background asteroid

    77185 Cherryh (provisional designation 2001 FE9) is a background asteroid from the central regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 20 March 2001, by American amateur astronomers Don Wells and Alex Cruz at the George Observatory in Needville, Texas. The dark asteroid was named for American writer C. J. Cherryh.

    24626 Astrowizard (provisional designation 1980 TS3) is a dark background asteroid from the central regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 9 October 1980, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California, United States. The asteroid was named for American science educator David Rodrigues, who would perform at public events as "The Astro Wizard".

    2325 Chernykh, provisional designation 1979 SP, is a dark Themistian asteroid from the outer regions of the asteroid belt, approximately 23 kilometers in diameter. It was discovered on 25 September 1979, by Czech astronomer Antonín Mrkos at the Klet Observatory in the Czech Republic. The asteroid was named after Russian astronomer couple Lyudmila Chernykh and Nikolai Chernykh.

    1205 Ebella (provisional designation 1931 TB1) is a relatively eccentric asteroid from the central regions of the asteroid belt, approximately 5.5 kilometers in diameter. It was discovered by astronomer Karl Reinmuth at Heidelberg Observatory on 6 October 1931. The asteroid was named after German astronomer Martin Ebell.

    14789 GAISh, provisional designation 1969 TY1, is a dark background asteroid from the outer regions of the asteroid belt, approximately 15 kilometers (9 miles) in diameter. It was discovered on 8 October 1969, by Soviet astronomer Lyudmila Chernykh of the Crimean Astrophysical Observatory at Nauchnij, on the Crimean peninsula. The assumed C-type asteroid has a rotation period of 8.1 hours and possibly an elongated shape. It was named for the Russian Sternberg Astronomical Institute (GAISh) of Moscow State University.

    1710 Gothard, provisional designation 1941 UF, is a stony asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 20 October 1941, by Hungarian astronomer György Kulin at the Konkoly Observatory in Budapest, Hungary. It was later named after Hungarian amateur astronomer Jenő Gothard.

    3099 Hergenrother, provisional designation 1940 GF, is an asteroid from the outer region of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 3 April 1940, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland, and named after American astronomer Carl Hergenrother in 1996.

    21062 Iasky (provisional designation 1991 JW1) is a dark background asteroid from the outer regions of the asteroid belt, approximately 19 kilometers (12 miles) in diameter. It was discovered on 13 May 1991, by American astronomers Carolyn and Eugene Shoemaker at the Palomar Observatory in California. It was named for Australian geophysicist Robert Iasky.

    <span class="mw-page-title-main">4265 Kani</span>

    4265 Kani is a dark background asteroid from the inner regions of the asteroid belt. It was discovered by Japanese astronomers Yoshikane Mizuno and Toshimasa Furuta at Kani Observatory on 8 October 1989. The carbonaceous C-type asteroid has a rotation period of 5.7 hours and measures approximately 14 kilometers in diameter. It was named for the Japanese city of Kani.

    4904 Makio, provisional designation 1989 WZ, is a stony asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered by Japanese astronomers Yoshikane Mizuno and Toshimasa Furuta at Kani Observatory on 21 November 1989. It was named after Japanese astronomer Makio Akiyama.

    1739 Meyermann, provisional designation 1939 PF, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 7.5 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 15 August 1939. It was later named in memory of astronomer Bruno Meyermann.

    1990 Pilcher, provisional designation 1956 EE, is a stony background asteroid from the Florian region of the inner asteroid belt, approximately 7 kilometers in diameter. It was discovered on 9 March 1956, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Heidelberg, Germany. In 1982, it was named by the MPC for American physicist and photometrist Frederick Pilcher. The S-type asteroid has a short rotation period of 2.8 hours.

    <span class="mw-page-title-main">2384 Schulhof</span> Asteroid

    2384 Schulhof (prov. designation: 1943 EC1) is a mid-sized asteroid and the namesake of the Schulhof family, located in the Eunomian region of the intermediate asteroid belt. It was discovered on 2 March 1943, by French astronomer Marguerite Laugier at Nice Observatory in southeastern France. The asteroid was later named after Hungarian astronomer Lipót Schulhof. The presumed S-type asteroid has a short rotation period of 3.3 hours and measures approximately 12 kilometers (7.5 miles) in diameter.

    4647 Syuji, provisional designation 1931 TU1, is a dark background asteroid from the outer regions of the asteroid belt, approximately 14 kilometers (8.7 miles) in diameter. It was discovered on 9 October 1931, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The likely carbonaceous asteroid was named for Japanese astronomer Shuji Hayakawa.

    7776 Takeishi, provisional designation 1993 BF, is a background asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 20 January 1993, by Japanese astronomer Takeshi Urata at the Nihondaira Observatory in Japan. The assumed S-type asteroid has a rotation period of 8.9 hours. It was named after Japanese amateur astronomer Masanori Takeishi.

    2278 Götz, provisional designation 1953 GE, is a dark background asteroid from the inner regions of the asteroid belt's background population, approximately 12 kilometers in diameter. It was discovered on 7 April 1953, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The F/C-type asteroid was named after astronomer Paul Götz.

    4432 McGraw-Hill, provisional designation 1981 ER22, is a background asteroid from the inner regions of the asteroid belt, approximately 3 kilometers (2 miles) in diameter. It was discovered on 2 March 1981, by American astronomer Schelte Bus at the Siding Spring Observatory in Australia. The likely S-type asteroid was named for the McGraw-Hill Telescope located at Kitt Peak, Arizona.

    6181 Bobweber, provisional designation 1986 RW, is a stony asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 6 September 1986, by American astronomer Eleanor Helin at the U.S. Palomar Observatory in California, and named after astronomer Robert Weber.

    7449 Döllen, provisional designation 1949 QL, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3.5 kilometers in diameter. It was discovered on 21 August 1949, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The likely S-type asteroid has a rotation period of 10 hours. It was named after German astronomer Wilhelm Döllen.

    31179 Gongju (provisional designation 1997 YR2) is a stony Nysian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers (3 miles) in diameter. It was discovered on 21 December 1997, by Japanese amateur astronomer Naoto Sato at his Chichibu Observatory near Tokyo, central Japan. The S-type asteroid has a rotation period of 4.8 hours and possibly an elongated shape. It was named for the South Korean city of Gongju.

    References

    1. 1 2 3 4 5 6 7 8 "7648 Tomboles (1989 TB1)". Minor Planet Center. Retrieved 23 May 2018.
    2. 1 2 3 4 5 6 "JPL Small-Body Database Browser: 7648 Tomboles (1989 TB1)" (2017-07-04 last obs.). Jet Propulsion Laboratory . Retrieved 23 May 2018.
    3. 1 2 "Asteroid 7648 Tomboles". Small Bodies Data Ferret. Retrieved 23 May 2018.
    4. 1 2 3 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 23 May 2018.
    5. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 23 May 2018.