276 Adelheid

Adelheid (minor planet designation: 276 Adelheid) is a dark Alauda asteroid from the outer region of the asteroid belt, approximately 121 kilometers in diameter. It was discovered by Austrian astronomer Johann Palisa at Vienna Observatory on 17 April 1888.[24] The meaning of the asteroids's name is unknown.[3]

276 Adelheid
Lightcurve-based 3D-model Adelheid
Discovery [1]
Discovered byJ. Palisa
Discovery siteVienna Obs.
Discovery date17 April 1888
Designations
(276) Adelheid
PronunciationGerman: [ˈaːdəlhaɪt][2]
Named after
unknown (Adelheid)[3]
main-belt · (outer) [4]
Alauda [5]
Orbital characteristics 
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc118.38 yr (43,239 days)
Aphelion3.3296 AU
Perihelion2.9065 AU
3.1181 AU
Eccentricity0.0678
5.51 yr (2,011 days)
276.54°
0° 10m 44.4s / day
Inclination21.614°
211.16°
265.21°
Physical characteristics
Dimensions98.04±5.48 km[6]
102.674±0.731 km[7]
104±11 km[8]
114.723±3.276 km[9]
121.56 km (derived)[4]
121.60±7.7 km[10]
121.71±43.30 km[11]
125±15 km[12]
135.30±2.09 km[13]
156.53±47.83 km[14]
6.29 h[15]
6.315±0.002 h[16]
6.315±0.005 h[17]
6.31920±0.00005 h[12]
6.31920 h[8]
6.319204±0.000001 h[18]
6.32 h[19]
6.328 h[20]
6.328 h[21]
12.48±0.05 h[22]
0.03±0.01[14]
0.036±0.001[13]
0.04±0.04[11]
0.0434 (derived)[4]
0.0450±0.006[10]
0.051±0.006[9]
0.0631±0.0107[7]
0.073±0.012[6]
Tholen = X [1] · P [4][23]
B–V = 0.708 [1]
U–B = 0.271 [1]
8.50[6] · 8.56[7][10][13] · 8.60[1][4][14] · 8.61[11]

    Classification

    Adelheid is a member of the Alauda family (902),[5] a large family of typically bright carbonaceous asteroids and named after its parent body, 702 Alauda.[25]:23

    Physical characteristics

    Photometric observations in 1992 gave a lightcurve with a period of 6.328 ± 0.012 hours and a brightness variation of 0.10 ± 0.02 in magnitude. The curve is regular with two maxima and minima.[4]

    In the Tholen classification, its spectrum has been characterized as that of an X-type asteroid,[1] while polarimetric observations refined its classification to a primitive P-type.[4][23]

    Naming

    Any reference of this minor planet's name to a person or occurrence is unknown.[3]

    Unknown meaning

    Among the many thousands of named minor planets, Adelheid is one of 120 asteroids, for which no official naming citation has been published. All of these low-numbered asteroids have numbers between 164 Eva and 1514 Ricouxa and were discovered between 1876 and the 1930s, predominantly by astronomers Auguste Charlois, Johann Palisa, Max Wolf and Karl Reinmuth (also see category).[26]

    References
    1. "JPL Small-Body Database Browser: 276 Adelheid" (2017-10-01 last obs.). Jet Propulsion Laboratory. Retrieved 7 November 2017.
    2. (German Names)
    3. Schmadel, Lutz D. (2007). "(276) Adelheid". Dictionary of Minor Planet Names – (276) Adelheid. Springer Berlin Heidelberg. p. 39. doi:10.1007/978-3-540-29925-7_277. ISBN 978-3-540-00238-3.
    4. "LCDB Data for (276) Adelheid". Asteroid Lightcurve Database (LCDB). Retrieved 7 November 2017.
    5. "Asteroid 276 Adelheid". Small Bodies Data Ferret. Retrieved 24 October 2019.
    6. 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 November 2017.
    7. 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.
    8. Hanus, J.; Marchis, F.; Durech, J. (September 2013). "Sizes of main-belt asteroids by combining shape models and Keck adaptive optics observations". Icarus. 226 (1): 1045–1057. arXiv:1308.0446. Bibcode:2013Icar..226.1045H. doi:10.1016/j.icarus.2013.07.023. Retrieved 7 November 2017.
    9. 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 November 2017.
    10. 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.
    11. Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv:1606.08923. Bibcode:2016AJ....152...63N. doi:10.3847/0004-6256/152/3/63. Retrieved 7 November 2017.
    12. Durech, Josef; Kaasalainen, Mikko; Herald, David; Dunham, David; Timerson, Brad; Hanus, Josef; et al. (August 2011). "Combining asteroid models derived by lightcurve inversion with asteroidal occultation silhouettes". Icarus. 214 (2): 652–670. arXiv:1104.4227. Bibcode:2011Icar..214..652D. doi:10.1016/j.icarus.2011.03.016. Retrieved 7 November 2017.
    13. 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. Retrieved 17 October 2019. (online, AcuA catalog p. 153)
    14. 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. Retrieved 7 November 2017.
    15. Wang, Xiao-bin; Shi, Ying (November 2002). "CCD Photometry of Asteroids 38, 174, 276 and 346". Earth. 91 (3): 181–186. Bibcode:2002EM&P...91..181W. Retrieved 7 November 2017.
    16. Pray, Donald P. (March 2005). "Lightcurve analysis of asteroids 276, 539, 1014, 1067, 3693 and 4774". The Minor Planet Bulletin. 32 (1): 8–9. Bibcode:2005MPBu...32....8P. ISSN 1052-8091. Retrieved 7 November 2017.
    17. Sada, Pedro V. (December 2006). "CCD photometry of asteroids 276 Adelheid, 1490 Limpopo, and 2221 Chilton from the Universidad de Monterrey Observatory". The Minor Planet Bulletin. 33 (4): 78–79. Bibcode:2006MPBu...33...78S. ISSN 1052-8091. Retrieved 7 November 2017.
    18. Marciniak, A.; Michalowski, T.; Kaasalainen, M.; Durech, J.; Polinska, M.; Kwiatkowski, T.; et al. (October 2007). "Photometry and models of selected main belt asteroids. IV. 184 Dejopeja, 276 Adelheid, 556 Phyllis". Astronomy and Astrophysics. 473 (2): 633–639. Bibcode:2007A&A...473..633M. doi:10.1051/0004-6361:20077694. Retrieved 7 November 2017.
    19. Piironen, J.; Bowell, E.; Erikson, A.; Magnusson, P. (September 1994). "Photometry of eleven asteroids at small phase angles". Astronomy and Astrophysics Supplement. 106: 587–595. Bibcode:1994A&AS..106..587P. Retrieved 7 November 2017.
    20. Dotto, E.; Rotundi, A.; de Sanctis, M. C. (December 1991). "Rotational properties of small asteroids: 1992 observational results". Observations and Physical Properties of Small Solar System Bodies. 30: 211. Bibcode:1992LIACo..30..211D. Retrieved 7 November 2017.
    21. di Martino, M.; Dotto, E.; Cellino, A.; Barucci, M. A.; Fulchignoni, M. (July 1995). "Intermediate size asteroids: Photoelectric photometry of 8 objects". Astronomy and Astrophysics Supplement. 112: 1. Bibcode:1995A&AS..112....1D. Retrieved 7 November 2017.
    22. Behrend, Raoul. "Asteroids and comets rotation curves – (276) Adelheid". Geneva Observatory. Retrieved 7 November 2017.
    23. 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 7 November 2017.
    24. "276 Adelheid". Minor Planet Center. Retrieved 7 November 2017.
    25. 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.
    26. Schmadel, Lutz D. (2007). "Appendix 11 – Minor Planet Names with Unknown Meaning". Dictionary of Minor Planet Names – Fifth Revised and Enlarged revision. Springer Berlin Heidelberg. pp. 927–929. ISBN 978-3-540-00238-3.

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