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71 Niobe

April 12, 2024

Niobe[22] (minor planet designation: 71 Niobe) is a stony Gallia asteroid and relatively slow rotator from the central regions of the asteroid belt, approximately 90 kilometers (56 miles) in diameter. It was discovered by the German astronomer Robert Luther on 13 August 1861, and named after Niobe, a character in Greek mythology. In 1861, the brightness of this asteroid was shown to vary by astronomer Friedrich Tietjen.[23]

71 Niobe
Lightcurve-based 3D-model of Niobe
Discovery [1]
Discovered byR. Luther
Discovery siteDüsseldorf Obs.
Discovery date13 August 1861
Designations
(71) Niobe
Pronunciation/ˈnaɪəbiː/[2]
Named after
Νιόβη Niobē (Greek mythology)[3]
main-belt [1][4] · (middle)
Gallia [5]
AdjectivesNiobean /naɪəˈbiːən/[2]
Orbital characteristics [4]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc154.10 yr (56,286 d)
Aphelion3.2348 AU
Perihelion2.2790 AU
2.7569 AU
Eccentricity0.1733
4.58 yr (1,672 d)
178.02°
0° 12m 55.08s / day
Inclination23.259°
316.02°
266.88°
Physical characteristics
Mean diameter
75.87±3.28 km[6]
80.86±0.80 km[7]
83.42±1.7 km[8]
92.75 km (taken)[9]
92.753 km[10]
92.842±0.644 km[11]
11 h[12]
11.21 h[13]
14.34±0.05 h[14]
14.34 h[15][14]
14.38±0.02 h[16]
35.5±0.1 h[17][a]
35.617948 h[9]
35.81±0.01 h[18]
35.8521±0.0005 h[19]
35.864±0.002 h[20]
0.2446[10]
0.2475±0.0346[11]
0.3052±0.013[8]
0.326±0.008[7]
0.369±0.033[6]
Tholen = S [4]
SMASS = Xe [4] · M [11] · A [21] · X [9]
B–V = 0.803[4]
U–B = 0.439[4]
7.30[4][6][7][8][11]
7.31[9]
7.31±0.09[10][16]

Description edit

Niobe is a member of the Gallia family (802), a small family of nearly 200 known stony asteroids.[24]

In 2006, it was examined by radar using the Arecibo Observatory radio telescope in Puerto Rico. This was supplemented by optical observations intended to build a lightcurve. The resulting estimated rotation period of 35.6 hours, or 1.48 Earth days, superseded an earlier estimate of the rotation period as 14.3 hours. The radar data produced an estimate of a maximum equatorial diameter of 94 km, which is consistent with earlier estimates based upon infrared data if the shape is assumed to be slightly elongated.[17][a]

The rotation period was further refined to 35.864 ± 0.001 hours during observations through 2010. Six stellar occultations of this asteroid between 2004 and 2007 produced chords ranging from 13 to 72 km (8–45 mi), which are statistically consistent with the published maximum diameter estimates.[20]

Notes edit

  1. ^ a b Lightcurve plot of 71 Niobe, Palmer Divide Observatory, B. D. Warner (2006): rotation period 35.5±0.1 hours with a brightness amplitude of 0.22±0.02 mag. Quality code of 2+. Summary figures at the LCDB

References edit

  1. ^ a b "71 Niobe". Minor Planet Center. Retrieved 18 April 2018.
  2. ^ a b "Niobe". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  3. ^ Schmadel, Lutz D. (2007). "(71) Niobe". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 22. doi:10.1007/978-3-540-29925-7_72. ISBN 978-3-540-00238-3.
  4. ^ a b c d e f g "JPL Small-Body Database Browser: 71 Niobe" (2018-02-21 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2018.
  5. ^ "Asteroid 71 Niobe". Small Bodies Data Ferret. Retrieved 24 October 2019.
  6. ^ a b c 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.
  7. ^ a b c 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)
  8. ^ a b c 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.
  9. ^ a b c d "LCDB Data for (71) Niobe". Asteroid Lightcurve Database (LCDB). Retrieved 18 April 2018.
  10. ^ a b c 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 18 April 2018.
  11. ^ 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.
  12. ^ Barucci, M. A.; Fulchignoni, M.; Burchi, R.; D'Ambrosio, V. (January 1985). "Rotational properties of ten main belt asteroids - Analysis of the results obtained by photoelectric photometry [ Erratum: 1985Icar...62..173B ]". Icarus. 61 (1): 152–162. Bibcode:1985Icar...61..152B. doi:10.1016/0019-1035(85)90161-7. ISSN 0019-1035. Retrieved 18 April 2018.
  13. ^ Lustig, G.; Dvorak, R. (December 1974). "Photometric investigations of the asteroids /43/ Ariadne and /71/ Niobe". Acta Physica Austriaca. 43 (1–2): 89–97.InGerman.ResearchsupportedbytheOesterreichischeNationalbank. Bibcode:1975AcPhA..43...89L. Retrieved 18 April 2018.
  14. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (71) Niobe". Geneva Observatory. Retrieved 18 April 2018.
  15. ^ Piironen, J.; Lagerkvist, C.-I.; Erikson, A.; Oja, T.; Magnusson, P.; Festin, L.; et al. (March 1998). "Physical studies of asteroids. XXXII. Rotation periods and UBVRI-colours for selected asteroids". Astronomy and Astrophysics Supplement. 128 (3): 525–540. Bibcode:1998A&AS..128..525P. doi:10.1051/aas:1998393.
  16. ^ a b Harris, A. W.; Young, J. W. (October 1989). "Asteroid lightcurve observations from 1979-1981". Icarus. 81 (2): 314–364. Bibcode:1989Icar...81..314H. doi:10.1016/0019-1035(89)90056-0. ISSN 0019-1035. Retrieved 18 April 2018.
  17. ^ a b Warner, Brian D.; Shepard, Michael K.; Harris, Alan W.; Pravec, Petr; Crawford, Greg; Husarik, Marek (December 2006). "Analysis of the lightcurve of 71 Niobe". The Minor Planet Bulletin. 33 (4): 102–103. Bibcode:2006MPBu...33..102W. ISSN 1052-8091. Retrieved 18 April 2018.
  18. ^ Sada, Pedro V.; Warner, Brian D. (June 2007). "Rotation Period of Asteroid 340 Eduarda and Refined Period for Asteroid 71 Niobe". The Minor Planet Bulletin. 34 (2): 37–38. Bibcode:2007MPBu...34...37S. ISSN 1052-8091. Retrieved 18 April 2018.
  19. ^ Hanus, J.; Durech, J.; Oszkiewicz, D. A.; Behrend, R.; Carry, B.; Delbo, M.; et al. (February 2016). "New and updated convex shape models of asteroids based on optical data from a large collaboration network". Astronomy and Astrophysics. 586: 24. arXiv:1510.07422. Bibcode:2016A&A...586A.108H. doi:10.1051/0004-6361/201527441.
  20. ^ a b Pilcher, Frederick (July 2010). "A New Investigation of the Rotation Period and Size of 71 Niobe". The Minor Planet Bulletin. 37 (3): 98–99. Bibcode:2010MPBu...37...98P. ISSN 1052-8091. Retrieved 18 April 2018.
  21. ^ Belskaya, I. N.; Fornasier, S.; Tozzi, G. P.; Gil-Hutton, R.; Cellino, A.; Antonyuk, K.; et al. (March 2017). "Refining the asteroid taxonomy by polarimetric observations". Icarus. 284: 30–42. Bibcode:2017Icar..284...30B. doi:10.1016/j.icarus.2016.11.003. Retrieved 18 April 2018.
  22. ^ with the stress on the first syllable
  23. ^ Harwood, Margaret (December 1924). "Variations in the Light of Asteroids". Harvard College Observatory Circular. 269: 1–15. Bibcode:1924HarCi.269....1H. Retrieved 18 April 2018.
  24. ^ 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.

External links edit

  • Asteroid Lightcurve Database (LCDB), query form (info 16 December 2017 at the Wayback Machine)
  • Dictionary of Minor Planet Names, Google books
  • Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
  • Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
  • 71 Niobe at AstDyS-2, Asteroids—Dynamic Site
    • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
  • 71 Niobe at the JPL Small-Body Database  
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

April 12, 2024
niobe, niobe, minor, planet, designation, stony, gallia, asteroid, relatively, slow, rotator, from, central, regions, asteroid, belt, approximately, kilometers, miles, diameter, discovered, german, astronomer, robert, luther, august, 1861, named, after, niobe,. Niobe 22 minor planet designation 71 Niobe is a stony Gallia asteroid and relatively slow rotator from the central regions of the asteroid belt approximately 90 kilometers 56 miles in diameter It was discovered by the German astronomer Robert Luther on 13 August 1861 and named after Niobe a character in Greek mythology In 1861 the brightness of this asteroid was shown to vary by astronomer Friedrich Tietjen 23 71 NiobeLightcurve based 3D model of NiobeDiscovery 1 Discovered byR LutherDiscovery siteDusseldorf Obs Discovery date13 August 1861DesignationsMPC designation 71 NiobePronunciation ˈ n aɪ e b iː 2 Named afterNiobh Niobe Greek mythology 3 Minor planet categorymain belt 1 4 middle Gallia 5 AdjectivesNiobean n aɪ e ˈ b iː e n 2 Orbital characteristics 4 Epoch 23 March 2018 JD 2458200 5 Uncertainty parameter 0Observation arc154 10 yr 56 286 d Aphelion3 2348 AUPerihelion2 2790 AUSemi major axis2 7569 AUEccentricity0 1733Orbital period sidereal 4 58 yr 1 672 d Mean anomaly178 02 Mean motion0 12m 55 08s dayInclination23 259 Longitude of ascending node316 02 Argument of perihelion266 88 Physical characteristicsMean diameter75 87 3 28 km 6 80 86 0 80 km 7 83 42 1 7 km 8 92 75 km taken 9 92 753 km 10 92 842 0 644 km 11 Synodic rotation period11 h 12 11 21 h 13 14 34 0 05 h 14 14 34 h 15 14 14 38 0 02 h 16 35 5 0 1 h 17 a 35 617948 h 9 35 81 0 01 h 18 35 8521 0 0005 h 19 35 864 0 002 h 20 Geometric albedo0 2446 10 0 2475 0 0346 11 0 3052 0 013 8 0 326 0 008 7 0 369 0 033 6 Spectral typeTholen S 4 SMASS Xe 4 M 11 A 21 X 9 B V 0 803 4 U B 0 439 4 Absolute magnitude H 7 30 4 6 7 8 11 7 31 9 7 31 0 09 10 16 Contents 1 Description 2 Notes 3 References 4 External linksDescription editNiobe is a member of the Gallia family 802 a small family of nearly 200 known stony asteroids 24 In 2006 it was examined by radar using the Arecibo Observatory radio telescope in Puerto Rico This was supplemented by optical observations intended to build a lightcurve The resulting estimated rotation period of 35 6 hours or 1 48 Earth days superseded an earlier estimate of the rotation period as 14 3 hours The radar data produced an estimate of a maximum equatorial diameter of 94 km which is consistent with earlier estimates based upon infrared data if the shape is assumed to be slightly elongated 17 a The rotation period was further refined to 35 864 0 001 hours during observations through 2010 Six stellar occultations of this asteroid between 2004 and 2007 produced chords ranging from 13 to 72 km 8 45 mi which are statistically consistent with the published maximum diameter estimates 20 Notes edit a b Lightcurve plot of 71 Niobe Palmer Divide Observatory B D Warner 2006 rotation period 35 5 0 1 hours with a brightness amplitude of 0 22 0 02 mag Quality code of 2 Summary figures at the LCDBReferences edit a b 71 Niobe Minor Planet Center Retrieved 18 April 2018 a b Niobe Oxford English Dictionary Online ed Oxford University Press Subscription or participating institution membership required Schmadel Lutz D 2007 71 Niobe Dictionary of Minor Planet Names Springer Berlin Heidelberg p 22 doi 10 1007 978 3 540 29925 7 72 ISBN 978 3 540 00238 3 a b c d e f g JPL Small Body Database Browser 71 Niobe 2018 02 21 last obs Jet Propulsion Laboratory Retrieved 18 April 2018 Asteroid 71 Niobe Small Bodies Data Ferret Retrieved 24 October 2019 a b c 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 a b c 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 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 c d LCDB Data for 71 Niobe Asteroid Lightcurve Database LCDB Retrieved 18 April 2018 a b c 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 18 April 2018 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 Barucci M A Fulchignoni M Burchi R D Ambrosio V January 1985 Rotational properties of ten main belt asteroids Analysis of the results obtained by photoelectric photometry Erratum 1985Icar 62 173B Icarus 61 1 152 162 Bibcode 1985Icar 61 152B doi 10 1016 0019 1035 85 90161 7 ISSN 0019 1035 Retrieved 18 April 2018 Lustig G Dvorak R December 1974 Photometric investigations of the asteroids 43 Ariadne and 71 Niobe Acta Physica Austriaca 43 1 2 89 97 InGerman ResearchsupportedbytheOesterreichischeNationalbank Bibcode 1975AcPhA 43 89L Retrieved 18 April 2018 a b Behrend Raoul Asteroids and comets rotation curves 71 Niobe Geneva Observatory Retrieved 18 April 2018 Piironen J Lagerkvist C I Erikson A Oja T Magnusson P Festin L et al March 1998 Physical studies of asteroids XXXII Rotation periods and UBVRI colours for selected asteroids Astronomy and Astrophysics Supplement 128 3 525 540 Bibcode 1998A amp AS 128 525P doi 10 1051 aas 1998393 a b Harris A W Young J W October 1989 Asteroid lightcurve observations from 1979 1981 Icarus 81 2 314 364 Bibcode 1989Icar 81 314H doi 10 1016 0019 1035 89 90056 0 ISSN 0019 1035 Retrieved 18 April 2018 a b Warner Brian D Shepard Michael K Harris Alan W Pravec Petr Crawford Greg Husarik Marek December 2006 Analysis of the lightcurve of 71 Niobe The Minor Planet Bulletin 33 4 102 103 Bibcode 2006MPBu 33 102W ISSN 1052 8091 Retrieved 18 April 2018 Sada Pedro V Warner Brian D June 2007 Rotation Period of Asteroid 340 Eduarda and Refined Period for Asteroid 71 Niobe The Minor Planet Bulletin 34 2 37 38 Bibcode 2007MPBu 34 37S ISSN 1052 8091 Retrieved 18 April 2018 Hanus J Durech J Oszkiewicz D A Behrend R Carry B Delbo M et al February 2016 New and updated convex shape models of asteroids based on optical data from a large collaboration network Astronomy and Astrophysics 586 24 arXiv 1510 07422 Bibcode 2016A amp A 586A 108H doi 10 1051 0004 6361 201527441 a b Pilcher Frederick July 2010 A New Investigation of the Rotation Period and Size of 71 Niobe The Minor Planet Bulletin 37 3 98 99 Bibcode 2010MPBu 37 98P ISSN 1052 8091 Retrieved 18 April 2018 Belskaya I N Fornasier S Tozzi G P Gil Hutton R Cellino A Antonyuk K et al March 2017 Refining the asteroid taxonomy by polarimetric observations Icarus 284 30 42 Bibcode 2017Icar 284 30B doi 10 1016 j icarus 2016 11 003 Retrieved 18 April 2018 with the stress on the first syllable Harwood Margaret December 1924 Variations in the Light of Asteroids Harvard College Observatory Circular 269 1 15 Bibcode 1924HarCi 269 1H Retrieved 18 April 2018 Nesvorny 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 External links editAsteroid Lightcurve Database LCDB query form info Archived 16 December 2017 at the Wayback Machine Dictionary of Minor Planet Names Google books Asteroids and comets rotation curves CdR Observatoire de Geneve Raoul Behrend Discovery Circumstances Numbered Minor Planets 1 5000 Minor Planet Center 71 Niobe at AstDyS 2 Asteroids Dynamic Site Ephemeris Observation prediction Orbital info Proper elements Observational info 71 Niobe 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 71 Niobe amp oldid 1195661677, wikipedia, wiki, book, books, library,

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