{
  "abstract": "I performed photometric observations of the poorly studied cataclysmic variable MASTER OT J232100.42+494614.0 and discovered eclipses. I observed nine eclipses over two groups of closely spaced nights, separated by a 12-month interval. I precisely calculated the orbital period of the system to be Porb=0.212371533+\\-0.000000069 days. For the eclipses, I created an ephemeris that is accurate for a long time span and suitable for analysing changes in the orbital period. The star's brightness outside of the eclipses varied between 15.61+\\-0.02 and 18.04+\\-0.05 mag. As the brightness decreased, the eclipses became more profound whereas its width remained unchanged. The average depth of eclipses was 1.36+\\-0.03 mag, and the average width at half-depth was 0.0512(15) phases. I calculated the possible inclination of the orbit to be between 72.8 and 76.3 degrees, and the range of the average absolute V-band magnitude of the disc to be between 6.37+\\-0.35 and 6.68+\\-0.35 mag. Although the light curve of MASTER OT J232100.42+494614.0 from the ZTF survey showed insufficiently large outbursts with amplitudes less than 2.5 mag, it should be classified as a dwarf nova, as the average disc brightness and mass transfer rate are below the threshold for thermal instability.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.22443",
  "author_total": 1,
  "authors": [
    {
      "name": "V. P. Kozhevnikov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9a9f3mae6qzsf.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.22443",
  "fulltext_url": null,
  "id": "9a9f3mae6qzsf",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.22443",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.SR"
    ],
    [
      "openalex",
      "3103|Astrophysical Phenomena and Observations"
    ]
  ],
  "openalex": "W7222981006",
  "pdf_url": "https://arxiv.org/pdf/2610.22443",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9a9f3mae6qzsf.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:32Z",
      "native_id": "2610.22443",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.22443"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    }
  ],
  "title": "Discovery of eclipses in the cataclysmic variable MASTER OT J232100.42+494614.0",
  "title_text": "Discovery of eclipses in the cataclysmic variable MASTER OT J232100.42+494614.0",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:28Z",
  "url": "https://research.draconitic.com/paper/9a9f3mae6qzsf",
  "venue": "arXiv",
  "versions": []
}