{"_facts":{"companion":"","deep":"","dossier":"","gaia_eb":"","impression":"","period":"","planet":"","rare":"Eclipse timing (third body?); Transits of a giant star","toi":""},"amplitude":"52.7%","bp_rp":"1.75","cover":"TIC315969204_s0013.png","data_used":"TESS sector 13 (QLP)","date":"2026-10-09","dec":"-37.9845","depth":"68.6%","distance_pc":"7,888 (~25,729 light years)","found_by":"hunt.py (automatic)","gaia_dr3":"6729980660678332288","gaia_gmag":"14.11","gaia_lum":"453.83 x the Sun","gaia_mass":"3.71 x the Sun","gaia_radius":"36.42 x the Sun","gaia_teff":"4,407 K","history":[{"date":"2026-10-09","text":"Found by the automatic search in TESS sector 13"},{"date":"2026-10-12","text":"Rare-find check: Eclipse timing (third body?); Transits of a giant star"}],"hr":[1.751,-0.376],"last_update":"2026-10-12","nearest_variable":"ASASSN-V J183957.35-375940.0 (EA, P = 4.4167 d), 40\" away (same period!)","nearest_variable_id":"ASASSN-V J183957.35-375940.0","notes":"Rare, already known: Eclipse timing (third body?); Transits of a giant star (the catalogued variable ASASSN-V J183957.35-375940.0 (EA, 40\" away) has the same period - its light leaks into TESS's big pixels; same period as the known variable ASASSN-V J183957.35-375940.0).\n\nWARNING: same period as the known variable ASASSN-V J183957.35-375940.0 40\" away; the signal is probably its light leaking in.\nFound automatically by hunt.py in TESS sector 13 (flagged in 1 sector(s)). Detection score 439.1.\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: Eclipse timing (third body?); Transits of a giant star\n2026-10-09  Found by the automatic search in TESS sector 13","period_days":"4.41587","period_source":"hunt.py on TESS QLP sector 13","ra":"279.995","rare":"Eclipse timing (third body?); Transits of a giant star","rare_checked":"2026-10-12 14:18","rare_clear":["Microlensing (rogue planet?)","Exocomet-shaped dip","Eclipses changing depth","Pulsating star in an eclipsing binary","Extra dips outside the eclipses"],"rare_device":"GPU: NVIDIA GeForce RTX 4070 (CUDA, CuPy)","rare_flags":[{"id":"etv","level":"candidate","name":"Eclipse timing (third body?)","text":"The eclipses drift early and late by 13.3 min, repeating every ~4 days: light taking longer or shorter to reach us as the pair is pulled around by a hidden third star (or planet), or a slowly turning eccentric orbit."},{"id":"giant_host","level":"notable","name":"Transits of a giant star","text":"Gaia places this star among the giants: planets transiting giants are rare, and a big star makes even a large planet's dip tiny."}],"rare_known":true,"rare_known_why":["the catalogued variable ASASSN-V J183957.35-375940.0 (EA, 40\" away) has the same period - its light leaks into TESS's big pixels","same period as the known variable ASASSN-V J183957.35-375940.0"],"rare_level":"candidate","rare_n":9,"ruwe":"1.15 - fits a single star","score":"439.1","sector":13,"simbad_name":"not in SIMBAD","status":"Rare, already known","tic":"315969204","title":"TIC 315969204","tmag":"13.28","type":"Eclipsing binary"}