50719 Elizabethgriffin

Last updated

50719 Elizabethgriffin
Discovery  [1] [2]
Discovered by CSS
Discovery site Mount Lemmon Obs.
Discovery date1 March 2000
Designations
(50719) Elizabethgriffin
Named after
Elizabeth Griffin
(Canadian astronomer)
2000 EG140 ·2001 MV3
main-belt  · Maria   [3] [4]
Orbital characteristics   [2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 0
Observation arc 19.92 yr (7,276 d)
Aphelion 2.9305 AU
Perihelion 2.2365 AU
2.5835 AU
Eccentricity 0.1343
4.15 yr (1,517 d)
73.206°
0° 14m 14.64s / day
Inclination 14.303°
262.84°
30.265°
Physical characteristics
Mean diameter
3.307±0.134  km [5] [6]
1256.0159±63.4351 h [7]
0.370±0.065 [5] [6]
S   [8]
14.1 [5]
14.2 [1] [2]
14.204±0.004(R) [7]

    50719 Elizabethgriffin (provisional designation 2000 EG140) is a stony Maria asteroid and exceptionally slow rotator from the central region of the asteroid belt, approximately 3.3 kilometers (2.1 miles) in diameter. It was discovered on 1 March 2000, by astronomers with the Catalina Sky Survey at Mount Lemmon Observatory, Arizona, United States. It was named for Canadian astronomer Elizabeth Griffin. [1]

    Contents

    Classification and orbit

    The stony S-type asteroid is a member of the Maria family ( 506 ), [3] [4] located in the Eunomia region in the intermediate main-belt. It orbits the Sun in the central main-belt at a distance of 2.2–2.9  AU once every 4 years and 2 months (1,517 days; semi-major axis of 2.58 AU). Its orbit has an eccentricity of 0.13 and an inclination of 14° with respect to the ecliptic. [2] A first precovery was taken at Lowell Observatory (LONEOS) in 1998, extending the asteroid's observation arc by 2 years prior to its discovery. [1]

    Numbering and naming

    This minor planet was numbered by the Minor Planet Center on 20 November 2002. [9] It was named after Elizabeth Griffin (born 1942) a Canadian astronomer who studies binary stars spectroscopically. She has been an advocate for the preservation and digitization of astronomic photographic plates. [1] The official naming citation was published by the Minor Planet Center on 6 April 2019 ( M.P.C. 112432). [9]

    Physical characteristics

    Slow rotator

    In August 2010, a rotational lightcurve of Elizabethgriffin was obtained from photometric observations by astronomers at the Palomar Transient Factory in California. It gave an exceptionally long rotation period of 1256 hours with a brightness variation of 0.42 magnitude ( U=2 ). [7] This makes the asteroid the 5th slowest rotating minor planet known to exist.

    Diameter and albedo

    According to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Elizabethgriffin measures 3.3 kilometers in diameter and its surface has an albedo of 0.37, [5] [6] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.21 and calculates a diameter of 3.4 kilometers with an absolute magnitude of 14.65. [8]

    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.

    <span class="mw-page-title-main">9971 Ishihara</span> Asteroid

    9971 Ishihara is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered by Japanese amateur astronomers Kin Endate and Kazuro Watanabe at Kitami Observatory on 16 April 1993, and named after Takahiro Ishihara, president of the astronomical society at Hiroshima.

    (9928) 1981 WE9, provisional designation 1981 WE9, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 16 November 1981, by astronomers at Perth Observatory in Bickley, Australia.

    <span class="mw-page-title-main">9921 Rubincam</span>

    9921 Rubincam, provisional designation 1981 EO18, is a stony asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 2 March 1981, by American astronomer Schelte Bus at the Siding Spring Observatory in Australia, and later named after American geophysicist David Rubincam.

    12848 Agostino, provisional designation 1997 NK10, is a stony Eunomia asteroid from the central region of the asteroid belt, approximately 5 kilometers in diameter.

    3936 Elst, provisional designation 2321 T-3, is a stony Vestian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. The asteroid was discovered on 16 October 1977, by Dutch astronomer couple Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Dutch–American astronomer Tom Gehrels at Palomar Observatory in California, United States. It was named after Belgian astronomer Eric W. Elst.

    23718 Horgos (provisional designation 1998 GO10) is a stony background asteroid from the central regions of the asteroid belt, approximately 2.9 kilometers in diameter. It was discovered on 2 April 1998, by Hungarian astronomers Krisztián Sárneczky and László Kiss at Konkoly's Piszkéstető Station northeast of Budapest, Hungary. The asteroid was named after the Serbian town of Horgoš.

    2028 Janequeo, provisional designation 1968 OB1, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on July 18, 1968, by Chilean astronomers Carlos Torres and S. Cofre at the Cerro El Roble Station of Chile's National Astronomical Observatory. The asteroid named after the indigenous heroine Janequeo (Yanequén).

    4944 Kozlovskij, provisional designation 1987 RP3, is a carbonaceous Witt asteroid from the central regions of the asteroid belt, approximately 10 kilometers (6 miles) in diameter. It was discovered on 2 September 1987, by Soviet astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean Peninsula. The asteroid was named for Russian opera singer Ivan Kozlovsky.

    9223 Leifandersson, provisional designation 1995 YY7, is a background asteroid from the inner regions of the asteroid belt, approximately 4.5 kilometers in diameter. It was discovered on 18 December 1995, by astronomers of the Spacewatch program at Kitt Peak National Observatory in Arizona, United States. The asteroid was named in memory of Swedish astronomer Leif Erland Andersson. The assumed stony asteroid has a rotation period of 3.758 hours.

    <span class="mw-page-title-main">5208 Royer</span> Asteroid

    5208 Royer (prov. designation: 1989 CH1) is a stony Marian asteroid from the central regions of the asteroid belt, approximately 8 kilometers (5 miles) in diameter. It was discovered on 6 February 1989, by astronomer Eleanor Helin at the Palomar Observatory. The S-type asteroid has a rotation period of 3.87 hours and was named after American priest and amateur astronomer, Ronald Royer.

    <span class="mw-page-title-main">1648 Shajna</span>

    1648 Shajna, provisional designation 1935 RF, is a stony asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 5 September 1935, by Russian astronomer Pelageya Shajn at Simeiz Observatory on the Crimean peninsula. Two weeks later, it was independently discovered by Cyril Jackson at Johannesburg Observatory, South Africa. It was later named after the discoverer and her husband, Russian astronomers Grigory Shajn.

    4789 Sprattia, provisional designation 1987 UU2, is a stony background asteroid from the inner regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 20 October 1987, by Canadian astronomer David Balam at the Climenhaga Observatory (657) in Victoria, Canada. The S-type asteroid has a rotation period of 3.1 hours and was named after Canadian amateur astronomer Christopher E. Spratt.

    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.

    14974 Počátky, provisional designation 1997 SK1, is a stony background asteroid from the middle region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered by Czech astronomer Miloš Tichý at Kleť Observatory in the Czech Republic on 22 September 1997, and named for the Czech town Počátky.

    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.

    13058 Alfredstevens, provisional designation 1990 WN3, is a stony Vestian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered by Belgian astronomer Eric Elst at ESO's La Silla Observatory in Northern Chile, on 19 November 1990. The asteroid was named for Belgian painter Alfred Stevens.

    12564 Ikeller, provisional designation 1998 SO49, is a stony Koronian asteroid from the outer region of the asteroid belt, approximately 5 kilometers in diameter.

    14436 Morishita, provisional designation 1992 FC2, is a stony background asteroid and exceptionally slow rotator from the middle region of the asteroid belt, approximately 5 kilometers in diameter.

    15224 Penttilä, provisional designation 1985 JG, is a dark background asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 15 May 1985, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station in Arizona, United States. The likely elongated asteroid has a rotation period of 4.4 hours. It was named after planetary scientist Antti Penttilä at the University of Helsinki.

    References

    1. 1 2 3 4 5 "50719 (2000 EG140)". Minor Planet Center. Retrieved 9 April 2019.
    2. 1 2 3 4 "JPL Small-Body Database Browser: 50719 (2000 EG140)" (2018-09-17 last obs.). Jet Propulsion Laboratory . Retrieved 9 April 2019.
    3. 1 2 "Asteroid 50719 Elizabethgriffin". Small Bodies Data Ferret. Retrieved 9 April 2019.
    4. 1 2 "Asteroid (50719) Elizabethgriffin – Proper elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 9 April 2019.
    5. 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.
    6. 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.
    7. 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.
    8. 1 2 "LCDB Data for (50719)". Asteroid Lightcurve Database (LCDB). Retrieved 3 September 2016.
    9. 1 2 "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 9 April 2019.
    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.