812 Adele

Last updated

812 Adele
000812-asteroid shape model (812) Adele.png
Modelled shape of Adele from its lightcurve
Discovery  [1]
Discovered by S. Belyavskyj
Discovery site Simeiz Obs.
Discovery date8 September 1915
Designations
(812) Adele
Named after
Adele, character in the operetta Die Fledermaus   [2]
A915 RU ·A902 UE
1915 XV
Orbital characteristics   [3]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc 104.40 yr (38,132 d)
Aphelion 3.0981 AU
Perihelion 2.2220 AU
2.6601 AU
Eccentricity 0.1647
4.34 yr (1,585 d)
46.769°
0° 13m 37.92s / day
Inclination 13.298°
7.2582°
353.10°
Physical characteristics
  • 12.356±0.111  km [7]
  • 13.57±0.43 km [8]
5.8587±0.0002  h [9]
  • (301.0°, 44.0°) (λ1/β1) [5]
  • (154.0°, 69.0°) (λ2/β2) [5]
  • 0.257±0.019 [8]
  • 0.291±0.041 [7]
S (family-based) [10] [11]

    812 Adele ( prov. designation:A915 RUor1915 XV) is an elongated Eunomia asteroid from the central regions of the asteroid belt. It was discovered on 8 September 1915, by Russian astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula. [1] The presumed S-type asteroid has a rotation period of 5.9 hours and measures approximately 13 kilometers (8 miles) in diameter. It was likely named after the character "Adele" in the opera Die Fledermaus by Johann Strauss. [2]

    Contents

    Orbit and classification

    When applying the hierarchical clustering method to its proper orbital elements, Adele is a core member of the Eunomia family ( 502 ), [4] [5] [6] a prominent family of stony S-type asteroids and the largest one in the intermediate main belt with more than 5,000 known members. [11] : 23  It orbits the Sun in the central asteroid belt at a distance of 2.2–3.1  AU once every 4 years and 4 months (1,585 days; semi-major axis of 2.66 AU). Its orbit has an eccentricity of 0.16 and an inclination of 13° with respect to the ecliptic. [3]

    Discovery

    Adele was discovered by Russian astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula 8 September 1915. Three nights later, on 11 September 1915, it was independently discovered by Max Wolf the Heidelberg Observatory in Germany. The Minor Planet Center however, only credits the first discoverer. The asteroid was first observed as A902 UE at Heidelberg on 25 October 1902. The body's observation arc begins at the Bergedorf Observatory on 19 September 1915, less than two weeks after its official discovery observation. [1]

    Naming

    This minor planet was likely named after "Adele", Rosalinde's maid, a character in the operetta Die Fledermaus by Johann Strauss (1825–1899). The name was given by the independent discoverer Max Wolf. The author of the Dictionary of Minor Planet Names, Lutz Schmadel, learned about the meaning of the asteroid's name from R. Bremer and Ingrid van Houten-Groeneveld, latter who worked as a young astronomer at Heidelberg.

    Physical characteristics

    Based on the overall spectral type of the Eunomia family, [11] : 23 Adele is likely a common, stony S-type asteroid. [10]

    Lightcurve-based 3D-model of Adele 812Adele (Lightcurve Inversion).png
    Lightcurve-based 3D-model of Adele

    Rotation period

    In October 2002, a rotational lightcurve of Adele was obtained from photometric observations by French amateur astronomer René Roy. Lightcurve analysis gave a well-defined rotation period of 5.8587±0.0002 hours with a high brightness variation of 0.69±0.02 magnitude, indicative of an elongated shape ( U=3 ). [9]

    In 2016, a modeled lightcurve gave a concurring sidereal period of 5.85746±0.00002 hours using data from the Uppsala Asteroid Photometric Catalogue, the Palomar Transient Factory survey, and individual observers (such as above), as well as sparse-in-time photometry from the NOFS, the Catalina Sky Survey, and the La Palma surveys ( 950 ). The study also determined two spin axes at (301.0°, 44.0°) and (154.0°, 69.0°) in ecliptic coordinates (λ, β). [12]

    Diameter and albedo

    According to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE) and the Japanese Akari satellite, Adele measures (12.356±0.111) and (13.57±0.43) kilometers in diameter and its surface has an albedo of (0.291±0.041) and (0.257±0.019), respectively. [7] [8] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a Eunomian asteroid of 0.21 and calculates a diameter of 12.66 kilometers based on an absolute magnitude of 11.8. [10] Alternative mean-diameter measurements published by the WISE team include (11.93±0.33  km ) and (13.619±0.263 km) with corresponding albedos of (0.259±0.047) and (0.2420±0.0275). [5] [10]

    Related Research Articles

    <span class="mw-page-title-main">748 Simeïsa</span> Hilda asteroid

    748 Simeïsa is a very large Hilda asteroid from the outermost regions of the asteroid belt, approximately 104 kilometers in diameter. It was discovered on 14 March 1913, by Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The dark P-type asteroid has a rotation period of 11.9 hours and a shape that is reminiscent of a tetrahedron. It was the first asteroid discovery made in Russia and named after the discovering observatory and its nearby Crimean town, Simeiz.

    760 Massinga is a large background asteroid from the outer regions of the asteroid belt, approximately 70 kilometers in diameter. It was discovered by German astronomer Franz Kaiser at the Heidelberg Observatory on 28 August 1913. The stony S-type asteroid has a rotation period of 10.7 hours and is somewhat elongated in shape. It was named in memory of Adam Massinger (1888–1914), a German astronomer at Heidelberg who was killed in World War I.

    <span class="mw-page-title-main">803 Picka</span>

    803 Picka is a large and dark background asteroid from the outer regions of the asteroid belt. It was discovered on 21 March 1915, by Austrian astronomer Johann Palisa at the Vienna Observatory. The carbonaceous D-type asteroid has a rotation period of 5.1 hours and measures approximately 57 kilometers in diameter. It was named after Czech physician Friedrich Pick (1867–1921).

    <span class="mw-page-title-main">807 Ceraskia</span> Elongated Eos asteroid

    807 Ceraskia is an elongated Eos asteroid from the outer regions of the asteroid belt. It was discovered on 18 April 1915, by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory in southwest Germany. The S-type asteroid has a rotation period of 7.4 hours and measures approximately 24 kilometers in diameter. It was named after Belarusian–Soviet astronomer Vitold Cerasky (1849–1925).

    <span class="mw-page-title-main">810 Atossa</span> Main-belt asteroid

    810 Atossa is a bright and elongated background asteroid from the region of the Flora family, located in the inner portion of the asteroid belt. It was discovered on 8 September 1915, by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory in southern Germany. The presumed S-type asteroid has a rotation period of 4.4 hours and measures approximately 8 kilometers in diameter. It was named after the ancient Persian queen Atossa.

    813 Baumeia is a stony background asteroid from the inner regions of the asteroid belt. It was discovered on 28 November 1915, by German astronomer Max Wolf at the Heidelberg Observatory in southwest Germany. The common S-type asteroid has a rotation period of 10.5 hours and measures approximately 12 kilometers in diameter. It was named for H. Baum, a German student of astronomy at Heidelberg who was killed in World War I.

    848 Inna is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt. It was discovered on 5 September 1915, by astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The C-type asteroid measures approximately 33 kilometers in diameter, while its rotation period remains unknown. It was named after Russian astronomer Inna Nikolaevna Leman-Balanovskaya (1881–1945).

    <span class="mw-page-title-main">877 Walküre</span> Main-belt asteroid

    877 Walküre is a dark background asteroid from the inner regions of the asteroid belt, approximately 38 kilometers in diameter. It was discovered on 13 September 1915, by Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The carbonaceous F/C-type asteroid has a rotation period of 17.4 hours and is likely elongated in shape. It was named after the female spirit Valkyrie from Norse mythology, best known from Wagner's opera Die Walküre.

    <span class="mw-page-title-main">891 Gunhild</span> Main-belt asteroid

    891 Gunhild is a large background asteroid from the outer regions of the asteroid belt, that measures approximately 58 kilometers in diameter. It was discovered on 17 May 1918, by astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory in southwest Germany. The dark D-type asteroid has a rotation period of 11.9 hours. Any reference of the asteroid's name to a person is unknown.

    917 Lyka is a background asteroid, approximately 32 kilometers in diameter, located in the inner region of the asteroid belt. It was discovered on 5 September 1915, by Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The X-type asteroid has a rotation period of 7.9 hours and is likely spherical in shape. It was named after Lyka, a friend of the discoverer's sister.

    923 Herluga is a three-body resonant background asteroid, approximately 34 kilometers in diameter, located in the central region of the asteroid belt. It was discovered on 30 September 1919, by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The carbonaceous C-type asteroid has a rotation period of 19.7 hours. It was named "Herluga", a common German female name unrelated to the discoverer's contemporaries, that was taken from the almanac Lahrer Hinkender Bote.

    1031 Arctica, provisional designation 1924 RR, is a dark asteroid from the outer region of the asteroid belt, approximately 75 kilometers in diameter. It was discovered on 6 June 1924, by Soviet−Russian astronomer Sergey Belyavsky at Simeiz Observatory on the Crimean peninsula. It was named for the Arctic Sea.

    <span class="mw-page-title-main">1050 Meta</span> Stony, main-belt asteroid of the Eunomia family

    1050 Meta, provisional designation 1925 RC, is a stony Eunomia asteroid from the central regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 14 September 1925, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The meaning of the asteroids's name is unknown. The presumably S-type asteroid has a rotation period of 6.14 hours and possibly an elongated shape.

    1074 Beljawskya, provisional designation 1925 BE, is a Themistian asteroid from the outer region of the asteroid belt, approximately 48 kilometers in diameter.

    1086 Nata, provisional designation 1927 QL, is a carbonaceous Veritasian asteroid from the outer regions of the asteroid belt, approximately 68 kilometers in diameter. It was discovered on 25 August 1927, by Russian astronomers Sergey Belyavsky and Nikolaj Ivanov at the Simeiz Observatory on the Crimean peninsula. The asteroid was named in memory of Soviet female parachutist Nata Babushkina (1915–1936).

    <span class="mw-page-title-main">1094 Siberia</span>

    1094 Siberia is an Eunomian asteroid from the central regions of the asteroid belt. It was discovered on 12 February 1926, by Soviet astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula. The X-type asteroid (Xk) has a rotation period of 21.2 hours and measures approximately 18 kilometers in diameter. It was named after the vast region of Siberia in North Asia.

    <span class="mw-page-title-main">1118 Hanskya</span> Asteroid

    1118 Hanskya is a large background asteroid, approximately 77 kilometers in diameter, located in the outer regions of the asteroid belt. Discovered by Sergey Belyavsky and Nikolaj Ivanov in 1927, it was named after Russian astronomer Aleksey Hansky. The presumed dark C-type asteroid has a rotation period of 15.6 hours.

    1505 Koranna, provisional designation 1939 HH, is a stony Eunomia asteroid from the central regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 21 April 1939, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named for the native Koranna people of South Africa.

    2995 Taratuta, provisional designation 1978 QK, is a stony Eunomian asteroid from the middle region of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 31 August 1978, by Russian astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory, Nauchnyj, on the Crimean peninsula. The asteroid was later named after Soviet writer Yevgeniya Taratuta.

    2672 Písek, provisional designation 1979 KC, is a Eunomia asteroid from the central regions of the asteroid belt, approximately 25 kilometers in diameter. It was discovered on 31 May 1979, by Yugoslav astronomer Jaroslav Květoň at the Kleť Observatory in the Czech Republic. The likely elongated asteroid is a suspected tumbler and a slow rotator with an exceptionally long period of 831 hours. It was named after the Czech town of Písek.

    References

    1. 1 2 3 4 5 "812 Adele (A915 RU)". Minor Planet Center. Retrieved 25 March 2020.
    2. 1 2 Schmadel, Lutz D. (2007). "(812) Adele". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 75. doi:10.1007/978-3-540-29925-7_813. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 "JPL Small-Body Database Browser: 812 Adele (A915 RU)" (2020-02-04 last obs.). Jet Propulsion Laboratory . Retrieved 25 March 2020.
    4. 1 2 "Asteroid 812 Adele – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 25 March 2020.
    5. 1 2 3 4 5 "Asteroid 812 Adele – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 25 March 2020.
    6. 1 2 Zappalà, V.; Bendjoya, Ph.; Cellino, A.; Farinella, P.; Froeschle, C. (1997). "Asteroid Dynamical Families". NASA Planetary Data System: EAR-A-5-DDR-FAMILY-V4.1. Retrieved 25 March 2020.} (PDS main page)
    7. 1 2 3 4 Mainzer, A. K.; Bauer, J. M.; Cutri, R. M.; Grav, T.; Kramer, E. A.; Masiero, J. R.; et al. (June 2016). "NEOWISE Diameters and Albedos V1.0". NASA Planetary Data System: EAR-A-COMPIL-5-NEOWISEDIAM-V1.0. Bibcode:2016PDSS..247.....M . Retrieved 25 March 2020.
    8. 1 2 3 4 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
    9. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (812) Adele". Geneva Observatory . Retrieved 25 March 2020.
    10. 1 2 3 4 "LCDB Data for (812) Adele". Asteroid Lightcurve Database (LCDB). Retrieved 25 March 2020.
    11. 1 2 3 Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv: 1502.01628 . Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN   9780816532131.
    12. ↑ Hanuš, J.; Ďurech, J.; Brož, M.; Marciniak, A.; Warner, B. D.; Pilcher, F.; et al. (March 2013). "Asteroids' physical models from combined dense and sparse photometry and scaling of the YORP effect by the observed obliquity distribution". Astronomy and Astrophysics. 551: A67. arXiv: 1301.6943 . Bibcode:2013A&A...551A..67H. doi:10.1051/0004-6361/201220701. ISSN   0004-6361.
    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.