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2094 Magnitka

November 26, 2023

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.[12] The discovery has not been attributed to an observing astronomer. It was later named for the city of Magnitogorsk.[2]

2094 Magnitka
Shape model of Magnitka from its lightcurve
Discovery [1]
Discovered byCrimean Astrophysical Obs.
Discovery siteCrimean Astrophysical Obs.
Discovery date12 October 1971
Designations
(2094) Magnitka
Named after
Magnitogorsk (Russian city)[2]
1971 TC2 · 1941 WK
1951 WP · 1956 EB
1964 TD · 1968 WE
1977 FG
main-belt · Flora [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc75.36 yr (27,524 days)
Aphelion2.4474 AU
Perihelion2.0170 AU
2.2322 AU
Eccentricity0.0964
3.34 yr (1,218 days)
149.03°
0° 17m 43.8s / day
Inclination5.0289°
281.93°
251.58°
Physical characteristics
Mean diameter
9.91±0.58 km[4]
10.121±0.408 km[5]
12.053±0.055 km[6]
12.167 km[7]
12.17 km (taken)[3]
12.58±1.04 km[8]
12.69±1.1 km[9]
6.11±0.02 h[10]
6.1124±0.0002 h[a]
6.24±0.01 h[11]
0.120[3][7]
0.1278±0.0129[6]
0.132±0.025[5]
0.1739±0.035[9]
0.194±0.042[8]
0.285±0.036[4]
S [3]
11.90[8] · 12.0±0.2 (R)[a] · 12.0[4][9] · 12.1[1] · 12.45[6] · 12.49±0.206[7] · 12.49[3]

Orbit and classification edit

Magnitka 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 2.0–2.4 AU once every 3 years and 4 months (1,218 days). Its orbit has an eccentricity of 0.10 and an inclination of 5° with respect to the ecliptic.[1] It was first identified as 1941 WK at the Finnish Turku Observatory, extending the body's observation arc by 30 years prior to its official discovery observation.[12]

Naming edit

This minor planet was named for the city of Magnitogorsk, Russia, one of the largest centers of metallurgy of the former Soviet Union.[2] The city is located at the far-east of the Ural Mountains, about 250 kilometers southwest of the city of Chelyabinsk in the Chelyabinsk Oblast region, also known for the spectacular air-burst of the Chelyabinsk meteor in 2013. The official naming citation was published by the Minor Planet Center on 1 April 1980 (M.P.C. 5282).[13]

Physical characteristics edit

 
Lightcurve-based 3D-model of Magnitka

Lightcurves edit

In October 2006, two rotational lightcurves for Magnitka were obtained from photometric observations by Petr Pravec at Ondřejov Observatory and by John Menke at his Menke Observatory, respectively. Lightcurve analysis gave a concurring rotation period of 6.11 hours with a brightness variation of 0.80 and 0.86 magnitude (U=3-/n.a.), respectively, indicating a non-spheroidal shape for Magnitka.[10][a] In March 2016, Pierre Antonini obtained a tentative lightcurve, which gave a period of 6.24 hours and an amplitude of 0.85 (U=2+).[11]

Diameter and albedo edit

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures between 9.9 and 12.7 kilometers in diameter and its surface has an albedo between 0.132.[4][5][6][7][8][9] The Collaborative Asteroid Lightcurve Link agrees with Pravec's revised thermal WISE data,[7] taking an albedo of 0.12, and a diameter of 12.17 kilometers with an absolute magnitude of 12.49.[3]

Notes edit

  1. ^ a b c Pravec (2006): Observed on 26 January 2006; rotation period of 6.1124±0.0002 hours; brightness amplitude of 0.86 magnitude; no quality code assessment. Summary figures for (2094) Magnitka at Light Curve Database

References edit

  1. ^ a b c d "JPL Small-Body Database Browser: 2094 Magnitka (1971 TC2)" (2017-03-26 last obs.). Jet Propulsion Laboratory. Retrieved 3 July 2017.
  2. ^ a b c Schmadel, Lutz D. (2007). "(2094) Magnitka". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 170. doi:10.1007/978-3-540-29925-7_2095. ISBN 978-3-540-00238-3.
  3. ^ a b c d e f "LCDB Data for (2094) Magnitka". Asteroid Lightcurve Database (LCDB). Retrieved 7 December 2016.
  4. ^ a b c d 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)
  5. ^ a b c Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 7 December 2016.
  6. ^ a b c d 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.
  7. ^ a b c d e 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. Retrieved 7 December 2016.
  8. ^ a b c d 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 7 December 2016.
  9. ^ a b c d Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
  10. ^ a b Menke, John; Cooney, Walt; Gross, John; Terrell, Dirk; Higgins, David (October 2008). "Asteroid Lightcurve Analysis at Menke Observatory". The Minor Planet Bulletin. 35 (4): 155–160. Bibcode:2008MPBu...35..155M. ISSN 1052-8091. Retrieved 7 December 2016.
  11. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (2094) Magnitka". Geneva Observatory. Retrieved 1 September 2016.
  12. ^ a b "2094 Magnitka (1971 TC2)". Minor Planet Center. Retrieved 7 December 2016.
  13. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 7 December 2016.

External links edit

  • Lightcurve Database Query (LCDB), at www.minorplanet.info
  • Dictionary of Minor Planet Names, Google books
  • Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
  • Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
  • 2094 Magnitka at AstDyS-2, Asteroids—Dynamic Site
    • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
  • 2094 Magnitka at the JPL Small-Body Database  
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

November 26, 2023
2094, magnitka, prov, designation, 1971, flora, asteroid, from, inner, regions, asteroid, belt, approximately, kilometers, miles, diameter, discovered, october, 1971, crimean, astrophysical, observatory, nauchnyj, crimean, peninsula, discovery, been, attribute. 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 12 The discovery has not been attributed to an observing astronomer It was later named for the city of Magnitogorsk 2 2094 MagnitkaShape model of Magnitka from its lightcurveDiscovery 1 Discovered byCrimean Astrophysical Obs Discovery siteCrimean Astrophysical Obs Discovery date12 October 1971DesignationsMPC designation 2094 MagnitkaNamed afterMagnitogorsk Russian city 2 Alternative designations1971 TC2 1941 WK1951 WP 1956 EB1964 TD 1968 WE1977 FGMinor planet categorymain belt Flora 3 Orbital characteristics 1 Epoch 4 September 2017 JD 2458000 5 Uncertainty parameter 0Observation arc75 36 yr 27 524 days Aphelion2 4474 AUPerihelion2 0170 AUSemi major axis2 2322 AUEccentricity0 0964Orbital period sidereal 3 34 yr 1 218 days Mean anomaly149 03 Mean motion0 17m 43 8s dayInclination5 0289 Longitude of ascending node281 93 Argument of perihelion251 58 Physical characteristicsMean diameter9 91 0 58 km 4 10 121 0 408 km 5 12 053 0 055 km 6 12 167 km 7 12 17 km taken 3 12 58 1 04 km 8 12 69 1 1 km 9 Synodic rotation period6 11 0 02 h 10 6 1124 0 0002 h a 6 24 0 01 h 11 Geometric albedo0 120 3 7 0 1278 0 0129 6 0 132 0 025 5 0 1739 0 035 9 0 194 0 042 8 0 285 0 036 4 Spectral typeS 3 Absolute magnitude H 11 90 8 12 0 0 2 R a 12 0 4 9 12 1 1 12 45 6 12 49 0 206 7 12 49 3 Contents 1 Orbit and classification 2 Naming 3 Physical characteristics 3 1 Lightcurves 3 2 Diameter and albedo 4 Notes 5 References 6 External linksOrbit and classification editMagnitka 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 2 0 2 4 AU once every 3 years and 4 months 1 218 days Its orbit has an eccentricity of 0 10 and an inclination of 5 with respect to the ecliptic 1 It was first identified as 1941 WK at the Finnish Turku Observatory extending the body s observation arc by 30 years prior to its official discovery observation 12 Naming editThis minor planet was named for the city of Magnitogorsk Russia one of the largest centers of metallurgy of the former Soviet Union 2 The city is located at the far east of the Ural Mountains about 250 kilometers southwest of the city of Chelyabinsk in the Chelyabinsk Oblast region also known for the spectacular air burst of the Chelyabinsk meteor in 2013 The official naming citation was published by the Minor Planet Center on 1 April 1980 M P C 5282 13 Physical characteristics edit nbsp Lightcurve based 3D model of MagnitkaLightcurves edit In October 2006 two rotational lightcurves for Magnitka were obtained from photometric observations by Petr Pravec at Ondrejov Observatory and by John Menke at his Menke Observatory respectively Lightcurve analysis gave a concurring rotation period of 6 11 hours with a brightness variation of 0 80 and 0 86 magnitude U 3 n a respectively indicating a non spheroidal shape for Magnitka 10 a In March 2016 Pierre Antonini obtained a tentative lightcurve which gave a period of 6 24 hours and an amplitude of 0 85 U 2 11 Diameter and albedo edit According to the surveys carried out by the Infrared Astronomical Satellite IRAS the Japanese Akari satellite and NASA s Wide field Infrared Survey Explorer with its subsequent NEOWISE mission the asteroid measures between 9 9 and 12 7 kilometers in diameter and its surface has an albedo between 0 132 4 5 6 7 8 9 The Collaborative Asteroid Lightcurve Link agrees with Pravec s revised thermal WISE data 7 taking an albedo of 0 12 and a diameter of 12 17 kilometers with an absolute magnitude of 12 49 3 Notes edit a b c Pravec 2006 Observed on 26 January 2006 rotation period of 6 1124 0 0002 hours brightness amplitude of 0 86 magnitude no quality code assessment Summary figures for 2094 Magnitka at Light Curve DatabaseReferences edit a b c d JPL Small Body Database Browser 2094 Magnitka 1971 TC2 2017 03 26 last obs Jet Propulsion Laboratory Retrieved 3 July 2017 a b c Schmadel Lutz D 2007 2094 Magnitka Dictionary of Minor Planet Names Springer Berlin Heidelberg p 170 doi 10 1007 978 3 540 29925 7 2095 ISBN 978 3 540 00238 3 a b c d e f LCDB Data for 2094 Magnitka Asteroid Lightcurve Database LCDB Retrieved 7 December 2016 a b c d Usui Fumihiko Kuroda Daisuke Muller 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 a b c Masiero Joseph R Grav T Mainzer A K Nugent C R Bauer J M Stevenson R et al August 2014 Main belt Asteroids with WISE NEOWISE Near infrared Albedos The Astrophysical Journal 791 2 11 arXiv 1406 6645 Bibcode 2014ApJ 791 121M doi 10 1088 0004 637X 791 2 121 Retrieved 7 December 2016 a b c d 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 a b c d e Pravec Petr Harris Alan W Kusnirak Peter Galad Adrian 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 Retrieved 7 December 2016 a b c d 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 7 December 2016 a b c d Tedesco E F Noah P V Noah M Price S D October 2004 IRAS Minor Planet Survey V6 0 NASA Planetary Data System 12 IRAS A FPA 3 RDR IMPS V6 0 Bibcode 2004PDSS 12 T Retrieved 22 October 2019 a b Menke John Cooney Walt Gross John Terrell Dirk Higgins David October 2008 Asteroid Lightcurve Analysis at Menke Observatory The Minor Planet Bulletin 35 4 155 160 Bibcode 2008MPBu 35 155M ISSN 1052 8091 Retrieved 7 December 2016 a b Behrend Raoul Asteroids and comets rotation curves 2094 Magnitka Geneva Observatory Retrieved 1 September 2016 a b 2094 Magnitka 1971 TC2 Minor Planet Center Retrieved 7 December 2016 MPC MPO MPS Archive Minor Planet Center Retrieved 7 December 2016 External links editLightcurve Database Query LCDB at www minorplanet info Dictionary of Minor Planet Names Google books Asteroids and comets rotation curves CdR Geneva Observatory Raoul Behrend Discovery Circumstances Numbered Minor Planets 1 5000 Minor Planet Center 2094 Magnitka at AstDyS 2 Asteroids Dynamic Site Ephemeris Observation prediction Orbital info Proper elements Observational info 2094 Magnitka at the JPL Small Body Database nbsp Close approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters Retrieved from https en wikipedia org w index php title 2094 Magnitka amp oldid 1171104372, wikipedia, wiki, book, books, library,

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