10208 Germanicus

Last updated

10208 Germanicus
Discovery [1]
Discovered by A. Vagnozzi
Discovery site Santa Lucia Obs.
Discovery date30 August 1997
Designations
(10208) Germanicus
Pronunciation ⫽dʒərˈmænɪkəs⫽ [2]
Named after
 Germanicus
(Ancient Roman general) [3]
1997 QN1 ·1987 QJ7
1994 WP12
main-belt  · Flora [4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 28.69 yr (10,478 days)
Aphelion 2.6849 AU
Perihelion 1.7860 AU
2.2354 AU
Eccentricity 0.2011
3.34 yr (1,221 days)
351.10°
0° 17m 41.64s / day
Inclination 4.5619°
223.63°
115.01°
Known satellites 1 [5] [6] [lower-alpha 1]
Physical characteristics
Dimensions2.87±0.62 km [7]
3.50 km (taken) [4]
3.503 km [8]
3.552±0.202 km [9] [10]
3.1291±0.0002 h [11]
3.3484±0.0001 h [5]
3.3493±0.0006 h [lower-alpha 2]
0.1747 [4] [8]
0.267±0.027 [9] [10]
0.36±0.19 [7]
S [4]
14.2±0.2(R) [5]  ·14.3 [9]  ·14.40 [7]  ·14.5 [1]  ·14.79±0.139 [4] [8]

    10208 Germanicus, provisional designation 1997 QN1, is a stony Florian asteroid and binary system from the inner regions of the asteroid belt, approximately 3.5 kilometers in diameter.

    Contents

    It was discovered on 30 August 1997, by Italian amateur astronomer Antonio Vagnozzi at the Santa Lucia Stroncone Astronomical Observatory in Stroncone, Italy, and named for ancient Roman general Germanicus. The asteroid's minor-planet moon was discovered in 2007.

    Orbit and classification

    Germanicus is a member of the Flora family, one of the largest families of stony asteroids. It orbits the Sun in the inner main-belt at a distance of 1.8–2.7  AU once every 3 years and 4 months (1,221 days). Its orbit has an eccentricity of 0.20 and an inclination of 5° with respect to the ecliptic. [1] It was first observed at Crimea–Nauchnij and Brorfelde Observatory in August 1987, extending the body's observation arc by 10 years prior to its official discovery observation at Stroncone. [3]

    Diameter and albedo

    According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Germanicus measures 2.87 and 3.552 kilometers in diameter and its surface has an albedo of 0.36 and 0.267, respectively. [7] [9] [10] The Collaborative Asteroid Lightcurve Link adopts Petr Pravec's revised WISE-data, that is, an albedo of 0.1747 and a diameter of 3.50 kilometers with an absolute magnitude of 14.79. [4]

    Lightcurve and satellite

    In August 2007, a rotational lightcurve of Germanicus was obtained from photometric observations by an international group of astronomers. Lightcurve analysis gave a rotation period of 3.1291 hours with a brightness variation of 0.13 magnitude ( U=n.a. ). It was also revealed that Germanicus is orbited by a minor-planet moon every 58.55 hours. The system has a high secondary-to-primary mean-diameter ratio of 0.46. [5] [lower-alpha 1] This translates into a satellite diameter of 1.48 kilometers (based on a primary-diameter of 3.23 kilometers). [6]

    Naming

    This minor planet was named for the ancient Roman general and poet Germanicus (15 BC – AD 19), who led several successful campaigns into Germania. [3] Germanicus was also the nephew and designated heir of the Roman Emperor Tiberius. As a poet, he wrote "Aratea", an astronomical treatise, which illustrated copy is known as the Leiden Aratea. [3] The approved naming citation was published by the Minor Planet Center on 27 May 2010 ( M.P.C. 70407). [12]

    Notes

    1. 1 2 CBET No. 1087, 25 September 2007 – Central Bureau for Astronomical Telegrams for (10208) Germanicus:
      Photometric observations obtained between 6 August and 18 September 2007, show that 10208 Germanicus is a binary system with an orbital period of 58.55±0.02 hours. The primary has a period of 3.3484±0.0001 hours, and it has a lightcurve brightness variation of 0.13 magnitude. Mutual eclipse/occultation events with a depth 0.21 magnitude suggest a secondary-to-primary mean-diameter ratio of 0.46±0.02.Central Bureau for Astronomical Telegrams No. 1716
      Julian Oey, Leura Observatory, Australia; Petr Pravec and Peter Kusnirak, Ondrejov Observatory; Yu. Krugly and Vasilij Chiorny, Kharkiv Observatory, Ukraine; and John. Ries, McDonald Observatory
    2. ↑ Pravec (2007) web: rotation period 3.3493±0.0006 hours with a brightness amplitude of 0.12 mag. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (10208) Germanicus

    Related Research Articles

    9617 Grahamchapman, provisional designation 1993 FA5, is a binary Florian asteroid from the inner regions of the asteroid belt, approximately 2.8 kilometers in diameter.

    2006 Polonskaya (provisional designation: 1973 SB3) is a stony Flora asteroid and asynchronous binary system from the inner regions of the asteroid belt, approximately 5 kilometers (3.1 miles) in diameter. It was discovered on 22 September 1973, by Soviet astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula, and later named after Ukrainian astronomer Elena Kazimirtchak-Polonskaïa. Its one-kilometer-sized satellite was discovered by an international collaboration of astronomers in November 2005.

    3673 Levy, provisional designation 1985 QS, is a binary Flora asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 22 August 1985, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona, United States. The asteroid was named after Canadian astronomer David H. Levy.

    1717 Arlon, provisional designation 1954 AC, is a binary Florian asteroid from the inner regions of the asteroid belt, approximately 8.5 kilometers in diameter.

    1991 Darwin, provisional designation 1967 JL, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter.

    <span class="mw-page-title-main">1338 Duponta</span> Stony Florian asteroid and synchronous binary system

    1338 Duponta, provisional designation 1934 XA, is a stony Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 7.8 kilometers in diameter.

    1736 Floirac, provisional designation 1967 RA, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8.7 kilometer in diameter.

    8116 Jeanperrin, provisional designation 1996 HA15, is a Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 4.8 kilometers (3 miles) in diameter. It was discovered on 17 April 1996, by Belgian astronomer Eric Elst at the La Silla Observatory in northern Chile. The likely stony S-type asteroid has a rotation period of 3.62 hours and a nearly round shape. It was named for French physicist and Nobel laureate Jean Baptiste Perrin. A minor-planet moon, a third the size of its primary, was discovered in 2007.

    5905 Johnson, provisional designation 1989 CJ1, is a Hungaria asteroid and synchronous binary system from the innermost regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 11 February 1989, by American astronomer Eleanor Helin at Palomar Observatory in California, United States. Its satellite measures approximately 1.6 km (1 mi) in diameter and orbits its primary every 21.8 hours. It was named after American astronomer and engineer Lindley N. Johnson.

    19763 Klimesh is a stony Phocaea asteroid and slow rotator from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. Discovered by NEAT at Haleakala Observatory in 2000, the asteroid was named for NEAT's software specialist Matthew Klimesh.

    <span class="mw-page-title-main">2094 Magnitka</span> Flora asteroid from the inner regions of the asteroid belt

    2094 Magnitka (prov. designation: 1971 TC2) is a Flora asteroid from the inner regions of the asteroid belt, approximately 12 kilometers (7.5 miles) in diameter. It was discovered on 12 October 1971, at and by the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The discovery has not been attributed to an observing astronomer. It was later named for the city of Magnitogorsk.

    3868 Mendoza, provisional designation 4575 P-L is a stony Vestian asteroid and binary system from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 24 September 1960, by astronomers Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels at Palomar Observatory.

    1376 Michelle, provisional designation 1935 UH, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 29 October 1935, by French astronomer Guy Reiss at the North African Algiers Observatory in Algeria. It is named for the discoverer's daughter, Michelle Reiss.

    1830 Pogson, provisional designation 1968 HA, is a stony Florian asteroid and an asynchronous binary system from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 17 April 1968, by Swiss astronomer Paul Wild at the Zimmerwald Observatory near Bern, Switzerland. The S-type asteroid has a rotation period 2.6 of hours. It was named for English astronomer Norman Pogson. The discovery of its 2.5-kilometer sized companion was announced in May 2007.

    1979 Sakharov, provisionally designated 2006 P-L, is a stony Vestian asteroid from the inner regions of the asteroid belt, approximately 4.5 kilometers in diameter. It was discovered during the Palomar–Leiden survey in 1960, and named after Russian physicist Andrei Sakharov.

    1405 Sibelius, provisional designation 1936 RE, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 12 September 1936, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. The asteroid was named after composer Jean Sibelius.

    2478 Tokai, provisionally designated 1981 JC, is a stony Florian asteroid and binary system from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 4 May 1981, by Japanese astronomer Toshimasa Furuta at Tōkai Observatory, Japan. The asteroid was named after the city of Tōkai.

    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.

    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.

    (6265) 1985 TW3 (provisional designation 1985 TW3) is a background asteroid and binary system from the inner regions of the asteroid belt. It was discovered on 11 October 1985, by astronomer by T. F. Fric and Richard Gilbrech at the Palomar Observatory in California. It is the only minor-planet discovery for these two astronomers. The stony L-type asteroid measures approximately 5 kilometers (3.1 miles) in diameter and has a rotation period of 2.7 hours. Its 1.2-kilometer sized minor-planet moon was discovered in July 2007 and announced the following month.

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 10208 Germanicus (1997 QN1)" (2016-05-03 last obs.). Jet Propulsion Laboratory . Retrieved 5 July 2017.
    2. ↑ Noah Webster (1884) A Practical Dictionary of the English Language
    3. 1 2 3 4 "10208 Germanicus (1997 QN1)". Minor Planet Center. Retrieved 31 March 2017.
    4. 1 2 3 4 5 6 "LCDB Data for (10208) Germanicus". Asteroid Lightcurve Database (LCDB). Retrieved 31 March 2017.
    5. 1 2 3 4 Oey, J.; Pravec, P.; Kusnirak, P.; Krugly, Yu.; Chiorny, V.; Ries, J. (September 2007). "(10208) 1997 QN1". Central Bureau Electronic Telegrams. 1087 (1087): 1. Bibcode:2007CBET.1087....1O.
    6. 1 2 Johnston, Robert (21 September 2014). "(10208) Germanicus". johnstonsarchive.net. Retrieved 31 March 2017.
    7. 1 2 3 4 Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv: 1509.02522 . Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117.
    8. 1 2 3 Pravec, Petr; Harris, Alan W.; Kusnirák, Peter; Galád, Adrián; Hornoch, Kamil (September 2012). "Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations". Icarus. 221 (1): 365–387. Bibcode:2012Icar..221..365P. doi:10.1016/j.icarus.2012.07.026.
    9. 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.
    10. 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.
    11. ↑ Oey, Julian (January 2016). "Lightcurve Analysis of Asteroids from Blue Mountains Observatory in 2014". The Minor Planet Bulletin. 43 (1): 45–51. Bibcode:2016MPBu...43...45O. ISSN   1052-8091.
    12. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 31 March 2017.
    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.