(2019) VAN ALBADA
\nV. Benishek, Belgrade Astronomical Observatory; P. Pravec, Ondrejov
\nObservatory; R. Durkee, Shed of Science South Observatory, Pontotoc, TX,
\nU.S.A.; M. Husarik, M. Pikler, G, Cervak, and D. Tomko, Skalnate Pleso
\nObservatory; B. Christmann, Soucieu-en-Jarrest, France; A. Aznar, Isaac
\nAznar Observatory, Alcublas, Valencia, Spain; D. Pray, Sugarloaf Mountain
\nObservatory, South Deerfield, MA, U.S.A.; F. Pilcher, Organ Mesa Observatory,
\nLas Cruces, NM, U.S.A.; V. Chiorny, Kharkiv Observatory; and A. Marchini, R..
\nPapini, and F. Salvaggio, Dipartimento di Scienze Fisiche, Della Terra e
\nDell’Ambiente, University of Siena, report that photometric observations
\ntaken with a 0.35-m telescope at the Sopot Observatory in Serbia, a 0.50-m
\ntelescope at the Shed of Science South Observatory, a 0.61-m telescope at
\nthe Skalnate Pleso Observatory, 0.28-m telescope at Soucieu-en-Jarrest, a
\n0.35-m telescope at the Isaac Aznar Observatory, a 0.50-m telescope at the
\nSugarloaf Mountain Observatory, a 0.35-m telescope at the Organ Mesa
\nObservatory, a 0.70-m telescope at the Chuguev station of the Kharkiv
\nObservatory in Ukraine, and a 0.30-m telescope at the Astronomical
\nObservatory of the University of Siena during Sept. 22-Oct. 26 reveal that
\nminor planet (2019) is a binary system with an orbital period of 17.982 \u00c2\u00b1
\n0.003 hr. The primary shows a period of 2.7294 \u00c2\u00b1 0.0005 hr and has a
\nlightcurve amplitude of 0.16 magnitude at solar phases 2-3 degrees. Mutual
\neclipse\/occultation events that are 0.07 to 0.12 magnitude deep indicate a
\nlower limit on the secondary-to-primary mean-diameter ratio of 0.26.<\/p>\n
2019 October 30 (CBET 4689) Daniel W. E. Green<\/p>\n","protected":false},"excerpt":{"rendered":"
(2019) VAN ALBADA V. Benishek, Belgrade Astronomical Observatory; P. Pravec, Ondrejov Observatory; R. Durkee, Shed of Science South Observatory, Pontotoc, TX, U.S.A.; M. Husarik, M. Pikler, G, Cervak, and D. Tomko, Skalnate Pleso Observatory; B. Christmann, Soucieu-en-Jarrest, France; A. Aznar, Isaac Aznar Observatory, Alcublas, Valencia, Spain; D. Pray, Sugarloaf Mountain Observatory, South Deerfield, MA, U.S.A.; […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7],"tags":[87,23,39,88],"class_list":["post-875","post","type-post","status-publish","format-standard","hentry","category-papers-and-letters","tag-87","tag-binary-asteroid","tag-photometry","tag-van-albada"],"acf":[],"_links":{"self":[{"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/posts\/875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aptog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=875"}],"version-history":[{"count":1,"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/posts\/875\/revisions"}],"predecessor-version":[{"id":876,"href":"https:\/\/aptog.com\/index.php?rest_route=\/wp\/v2\/posts\/875\/revisions\/876"}],"wp:attachment":[{"href":"https:\/\/aptog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aptog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aptog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}