{"_facts":{"companion":"","deep":"","dossier":"","gaia_eb":"","impression":"","period":"","planet":"Probably noise or an instrument effect","rare":"Transit timing (TTV); Lopsided transit; Transits of a giant star","toi":""},"amplitude":"0.4%","bp_rp":"1.35","cover":"TIC256514921_s0021.png","data_used":"TESS sector 21 (QLP)","date":"2026-10-11","dec":"63.1542","depth":"1.1%","distance_pc":"1,683 (~5,488 light years)","found_by":"hunt.py (automatic)","gaia_dr3":"2241257666137849344","gaia_gmag":"12.20","history":[{"date":"2026-10-11","text":"Found by the automatic search in TESS sector 21"},{"date":"2026-10-11","text":"Rare-find check: Transit timing (TTV); Lopsided transit; Transits of a giant star"},{"date":"2026-10-11","text":"Planet check: Probably noise or an instrument effect"}],"hr":[1.345,1.069],"last_update":"2026-10-11","nearest_variable":"Gaia DR3 2241257288180680448 (ROT), 200\" away","nearest_variable_id":"Gaia DR3 2241257288180680448","notes":"Probably noise or an instrument effect.\nRare, already known: Transit timing (TTV); Lopsided transit; Transits of a giant star (catalogued variable star nearby: Gaia DR3 2241257288180680448 (ROT), 200\" away).\n\nFound automatically by hunt.py in TESS sector 21 (flagged in 8 sector(s)). Detection score 90.2.\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:\n2026-10-11  Planet check: Probably noise or an instrument effect\n2026-10-11  Rare-find check: Transit timing (TTV); Lopsided transit; Transits of a giant star\n2026-10-11  Found by the automatic search in TESS sector 21","period_days":"2.66544","period_source":"hunt.py on TESS QLP sector 21","planet_check":"Probably noise or an instrument effect","planet_size":"~101.1 Earth radii (~9.02 Jupiter) - too big for a planet","planet_verdict":"fa","ra":"299.393","rare":"Transit timing (TTV); Lopsided transit; Transits of a giant star","rare_checked":"2026-10-11 17:00","rare_clear":["Microlensing (rogue planet?)","Exocomet-shaped dip","Habitable zone & size","Transit duration (TDV)","Changing transit depth","Dimming beside the transit","Trojan companions (L4/L5)","More planets in the system","Self-lensing binary"],"rare_device":"GPU: NVIDIA GeForce RTX 4070 (CUDA, CuPy)","rare_flags":[{"id":"ttv","level":"candidate","name":"Transit timing (TTV)","text":"The transits arrive early or late by 33.9 min (typical error 2.0 min) repeating every ~2.0 orbits: something is tugging on the planet - another planet, or a moon."},{"id":"asymmetry","level":"hint","name":"Lopsided transit","text":"The start of the transit is deeper than the end: a dust tail (disintegrating planet), rings, a fast-spinning star, or a blend."},{"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":["catalogued variable star nearby: Gaia DR3 2241257288180680448 (ROT), 200\" away"],"rare_level":"candidate","rare_n":12,"ruwe":"1.01 - fits a single star","score":"90.2","sector":21,"simbad_name":"not in SIMBAD","status":"Rare, already known","tic":"256514921","title":"TIC 256514921","tmag":"11.52","type":"Transit candidate"}