{"_facts":{"companion":"","deep":"","dossier":"","gaia_eb":"","impression":"","period":"","planet":"","rare":"Irregular deep dimming; Eccentric eclipsing binary","toi":""},"amplitude":"2.4%","bp_rp":"0.80","cover":"TIC265274458_s0024.png","data_used":"TESS sector 24 (QLP)","date":"2026-10-11","dec":"73.1567","depth":"5.7%","distance_pc":"828 (~2,700 light years)","found_by":"hunt.py (automatic)","gaia_dr3":"2228101077501418240","gaia_gmag":"12.42","gaia_lum":"24.99 x the Sun","gaia_mass":"2.13 x the Sun","gaia_radius":"1.95 x the Sun","gaia_rv":"speed changes by 125 km/s - likely an orbiting pair","gaia_teff":"9,091 K","history":[{"date":"2026-10-11","text":"Found by the automatic search in TESS sector 24"},{"date":"2026-10-12","text":"Rare-find check: Irregular deep dimming; Eccentric eclipsing binary"}],"hr":[0.797,2.83],"last_update":"2026-10-12","nearest_variable":"ZTF J235122.73+730831.1 (EW, P = 0.36386 d), 166\" away","nearest_variable_id":"ZTF J235122.73+730831.1","notes":"Rare, already known: Irregular deep dimming; Eccentric eclipsing binary (in SIMBAD as TYC 4491-165-1 (*); catalogued variable star nearby: ZTF J235122.73+730831.1 (EW, P = 0.36386 d), 166\" away).\n\nFound automatically by hunt.py in TESS sector 24 (flagged in 1 sector(s)). Detection score 371.7.\nNot in VSX, ASAS-SN or ZTF variable catalogues at the time of the search; not in Gaia DR3's variable lists.\nUnchecked by hand yet: verify the period, nearby stars and a wider catalogue search.\n\nUpdates:\n2026-10-12  Rare-find check: Irregular deep dimming; Eccentric eclipsing binary\n2026-10-11  Found by the automatic search in TESS sector 24","period_days":"2.99893","period_source":"hunt.py on TESS QLP sector 24","ra":"357.694","rare":"Irregular deep dimming; Eccentric eclipsing binary","rare_checked":"2026-10-12 20:05","rare_clear":["Microlensing (rogue planet?)","Superflare","Exocomet-shaped dip","Eclipse timing (third body?)","Eclipses changing depth","Pulsating star in an eclipsing binary","Extra dips outside the eclipses","Type of star"],"rare_device":"GPU: NVIDIA GeForce RTX 4070 (CUDA, CuPy)","rare_flags":[{"id":"boyajian","level":"candidate","name":"Irregular deep dimming","text":"10 deep dips at irregular times, depths from 1.0% to 14.7%. Not periodic and not a young star - like Boyajian's star ('Tabby's star'), one of the strangest stars known."},{"id":"eccentric_eb","level":"notable","name":"Eccentric eclipsing binary","text":"The second eclipse comes at phase 0.200 instead of 0.5: the orbit is stretched (eccentricity at least 0.471). Eccentric binaries show how tides shape orbits, and their slowly turning orbits test General Relativity."}],"rare_known":true,"rare_known_why":["in SIMBAD as TYC 4491-165-1 (*)","catalogued variable star nearby: ZTF J235122.73+730831.1 (EW, P = 0.36386 d), 166\" away","in the TESS eclipsing-binary catalogue (Prsa et al. 2022) as TIC 0265274458"],"rare_level":"candidate","rare_n":12,"ruwe":"1.16 - fits a single star","score":"371.7","sector":24,"simbad_id":"TYC 4491-165-1","simbad_name":"TYC 4491-165-1 [*]","status":"Rare, already known","tic":"265274458","title":"TIC 265274458","tmag":"12.03","type":"Eclipsing binary"}