TYC 2392-01288-1, Discovery of Stellar Duplicity During Asteroidal Occultation by (283) Emma

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00098639%3A_____%2F21%3AN0000003" target="_blank" >RIV/00098639:_____/21:N0000003 - isvavai.cz</a>
Result on the web
<a href="http://www.jdso.org/volume17/number3/Frappa_230_237.pdf" target="_blank" >http://www.jdso.org/volume17/number3/Frappa_230_237.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
TYC 2392-01288-1, Discovery of Stellar Duplicity During Asteroidal Occultation by (283) Emma
Original language description
An occultation of TYC 2392-01288-1 by the minor planet (283) Emma on November 24, 2020 showed this star to be a previously unknown double star. The occultation of the main component alone was observed by one visual double station in Algeria. The occultation of the secondary component alone was observed by three stations in Czechia and Italy. Two negative observations were also reported from Slovakia and Switzerland. From a Gaia G magnitude of 8.73 for the target star, an estimated V magnitude of 12.8 for the asteroid, and a 0.18 mag drop measured for the occultation of the secondary component, we conclude that the approximate G (or V) magnitudes of the two components are 8.9 and 10.7. Two solutions for the separation and position angle of the components are derived from a fit of the chords on the 3D model DAMIT #1859 of the asteroid. The separation of the two components in solution 1 is found to be 0.7000 ± 0.0038 arcseconds at a position angle of 105.0 ± 0.2 degrees. The separation of the two components in solution 2 is found to be 0.7530 ± 0.0026 arcseconds at a position angle of 109.6 ± 0.2 degrees.
Czech name
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Czech description
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Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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