{"title":"近地小行星 (415029) 2011 UL21 的多色光度测量法","authors":"Bojan Novaković","doi":"10.3847/2515-5172/ad7394","DOIUrl":null,"url":null,"abstract":"<italic toggle=\"yes\">BVR</italic> photometric series of observations of potentially hazardous asteroid (415029) 2011 UL21 were obtained at the Astronomical Station of Vidojevica around its close approach to the Earth on 2018 July 1. From these observations, the color indices <italic toggle=\"yes\">V</italic> − <italic toggle=\"yes\">R</italic> = 0.48 ± 0.07 and <italic toggle=\"yes\">B</italic> − <italic toggle=\"yes\">V</italic> = 0.89 ± 0.06 were determined, suggesting R- or S-type taxonomic classification of the object. The observed small lightcurve amplitude suggests a nearly spherical shape of the asteroid.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"10 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Multi-color Photometry of Near-Earth Asteroid (415029) 2011 UL21\",\"authors\":\"Bojan Novaković\",\"doi\":\"10.3847/2515-5172/ad7394\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<italic toggle=\\\"yes\\\">BVR</italic> photometric series of observations of potentially hazardous asteroid (415029) 2011 UL21 were obtained at the Astronomical Station of Vidojevica around its close approach to the Earth on 2018 July 1. From these observations, the color indices <italic toggle=\\\"yes\\\">V</italic> − <italic toggle=\\\"yes\\\">R</italic> = 0.48 ± 0.07 and <italic toggle=\\\"yes\\\">B</italic> − <italic toggle=\\\"yes\\\">V</italic> = 0.89 ± 0.06 were determined, suggesting R- or S-type taxonomic classification of the object. The observed small lightcurve amplitude suggests a nearly spherical shape of the asteroid.\",\"PeriodicalId\":74684,\"journal\":{\"name\":\"Research notes of the AAS\",\"volume\":\"10 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-08-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Research notes of the AAS\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3847/2515-5172/ad7394\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Research notes of the AAS","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3847/2515-5172/ad7394","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
2018 年 7 月 1 日，维多耶维察天文站在潜在危险小行星 (415029) 2011 UL21 接近地球前后对其进行了 BVR 光度系列观测。通过这些观测，确定了 V - R = 0.48 ± 0.07 和 B - V = 0.89 ± 0.06 的颜色指数，表明该天体属于 R 型或 S 型分类。观测到的小光曲线振幅表明该小行星的形状接近球形。
Multi-color Photometry of Near-Earth Asteroid (415029) 2011 UL21
BVR photometric series of observations of potentially hazardous asteroid (415029) 2011 UL21 were obtained at the Astronomical Station of Vidojevica around its close approach to the Earth on 2018 July 1. From these observations, the color indices V − R = 0.48 ± 0.07 and B − V = 0.89 ± 0.06 were determined, suggesting R- or S-type taxonomic classification of the object. The observed small lightcurve amplitude suggests a nearly spherical shape of the asteroid.
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