G. I. Kokhirova, F. D. Rakhmatullaeva, D. L. Gorshanov, V. N. Lvov, A. V. Devyatkin
{"title":"Results of Observation of the Occultation of the Star TYC 5254-00839-1 by Triton in 2022 at the Sanglokh Observatory","authors":"G. I. Kokhirova, F. D. Rakhmatullaeva, D. L. Gorshanov, V. N. Lvov, A. V. Devyatkin","doi":"10.1134/S0038094624700230","DOIUrl":null,"url":null,"abstract":"<p>Optical observations of the occultation of the star TYC 5254-00839-1 by Neptune’s satellite Triton were carried out on October 6, 2022, using the Zeiss-1000 telescope at the Sanglokh Observatory (MPC code 193). As a result of photometric processing of images, a light curve of the star was constructed and it was revealed that the areas of decline and rise in brightness had a finite duration from 15 to 24 s. This is apparently due to the presence of an atmosphere around Triton. In addition, in the resulting light curve of this phenomenon, according to our and other observations, a “step” is revealed, which may indicate the possible presence of a close, faint object near the occulted star. As a result of astrometric processing, high-precision coordinates of Triton were determined at the average moment of occultation, which, within the limits of measurement errors, coincided with its ephemeris position.</p>","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":"58 4","pages":"450 - 455"},"PeriodicalIF":0.6000,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solar System Research","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S0038094624700230","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract
Optical observations of the occultation of the star TYC 5254-00839-1 by Neptune’s satellite Triton were carried out on October 6, 2022, using the Zeiss-1000 telescope at the Sanglokh Observatory (MPC code 193). As a result of photometric processing of images, a light curve of the star was constructed and it was revealed that the areas of decline and rise in brightness had a finite duration from 15 to 24 s. This is apparently due to the presence of an atmosphere around Triton. In addition, in the resulting light curve of this phenomenon, according to our and other observations, a “step” is revealed, which may indicate the possible presence of a close, faint object near the occulted star. As a result of astrometric processing, high-precision coordinates of Triton were determined at the average moment of occultation, which, within the limits of measurement errors, coincided with its ephemeris position.
期刊介绍：
Solar System Research publishes articles concerning the bodies of the Solar System, i.e., planets and their satellites, asteroids, comets, meteoric substances, and cosmic dust. The articles consider physics, dynamics and composition of these bodies, and techniques of their exploration. The journal addresses the problems of comparative planetology, physics of the planetary atmospheres and interiors, cosmochemistry, as well as planetary plasma environment and heliosphere, specifically those related to solar-planetary interactions. Attention is paid to studies of exoplanets and complex problems of the origin and evolution of planetary systems including the solar system, based on the results of astronomical observations, laboratory studies of meteorites, relevant theoretical approaches and mathematical modeling. Alongside with the original results of experimental and theoretical studies, the journal publishes scientific reviews in the field of planetary exploration, and notes on observational results.
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