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(1981) Moon Planets 24, 437-440.], [Di Martino, M.; Cacciatori, S. (1984) Icarus 60, 75-82.], [Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1990) Icarus 86, 402-447.], [Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1991) Icarus 89, 44-64.], [Michalowski, T. (1992) in Asteroids, Comets, Meteors 1991. A.W. Harris, E. Bowell, eds. Lunar and Planetary Institute, Houston, pp. 417-419.], [Erikson, A.; Magnusson, P. (1993) Icarus 103, 62-66.], [Michalowski, T. (1993) Icarus 106, 563-572.], [De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.], [Riccioli, D.; Blanco, C.; Cigna, M. (2001) Planet. Space Sci. 49, 657-671.], [Torppa, J.; Kaasalainen, M.; Michalowski, T.; Kwiatkowski, T.; et al. (2003) Icarus 164, 346-383.], [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html], [Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.], [Shevchenko, V.G.; Belksaya, I.N.; Muinon, K.; Penttila, A.; et al. (2016) Plan. Space Sci. 123, 101-116.], [Viikinkoski, M.; Hanus, J.; Kaasalainen, M.; Marchis, F.; Durech, J. (2017) Astron. Astrophys. 607, A117.], [Martikainen, J.; Muinonen, K.; Penttila, A.; Cellino, A.; Wang, X.-B. (2021) Astron. Astrophys. 649, A98.], [Behrend, R. (2022) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]"},{"sigma":"0.019","units":null,"title":"geometric albedo","notes":null,"desc":"geometric albedo","value":"0.112","ref":"urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)","name":"albedo"},{"title":"B-V","sigma":"0.023","units":null,"desc":"color index B-V magnitude difference","value":"0.728","ref":"EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2","name":"BV","notes":"#obs=6; phase (min.=3.45, mean=11.24, max.=19.07) deg."},{"title":"U-B","sigma":"0.026","units":null,"desc":"color index U-B magnitude difference","ref":"EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2","value":"0.262","name":"UB","notes":"#obs=6; phase (min.=3.45, mean=11.24, max.=19.07) deg."},{"title":"Tholen spectral type","units":null,"sigma":null,"name":"spec_T","value":"M","ref":"EAR-A-5-DDR-TAXONOMY-V4.0","desc":"Tholen spectral taxonomic classification","notes":"used 7 color indices; used ground-based radiometric albedo"},{"name":"spec_B","ref":"EAR-A-5-DDR-TAXONOMY-V4.0","value":"Xk","desc":"SMASSII spectral taxonomic classification","notes":"based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)","title":"SMASSII spectral type","units":null,"sigma":null}],"signature":{"source":"NASA/JPL Small-Body Database (SBDB) API","version":"1.3"},"object":{"fullname":"250 Bettina (A885 RA)","orbit_class":{"name":"Main-belt Asteroid","code":"MBA"},"prefix":null,"pha":false,"kind":"an","orbit_id":"86","shortname":"250 Bettina","des":"250","spkid":"20000250","neo":false}}