{ "known": true, "known_why": [ "in SIMBAD as ATO J305.2231+39.5459 (V*)", "catalogued variable star nearby: MGAB-V2748 (YSO), 65\" away", "in the ATLAS variable-star catalogue (Heinze et al. 2018) as J305.2231+39.5459", "SIMBAD lists ATO J305.2231+39.5459 also as ATO J305.2231+39.5459" ], "known_version": 5, "tic": "13115123", "version": 3, "when": "2026-10-11 16:38", "device": "GPU: NVIDIA GeForce RTX 4070 (CUDA, CuPy)", "seconds": 42.2, "kind": "transit?", "sectors": [ 14, 15, 41, 55, 81, 82 ], "points": 29387, "signal": { "P": 0.831245, "T0": 1683.716272, "dur": 0.12, "depth": 0.071873, "rp": 284.857504, "source": "found here", "snr": 1408.669256 }, "star": { "rad": 9.73912, "mass": 3.0, "teff": 8545.0, "logg": null, "abs_g": 1.2303, "bp_rp": 1.6424, "dist": 1872.1253 }, "flags": [ "giant_host" ], "best_level": "notable", "headline": "Transits of a giant star", "checks": [ { "id": "microlensing", "name": "Microlensing (rogue planet?)", "flag": false, "level": null, "text": "5 brightening(s), none shaped like a one-off lens event.", "details": {} }, { "id": "exocomet", "name": "Exocomet-shaped dip", "flag": false, "level": null, "text": "No comet-shaped dips.", "details": {} }, { "id": "habitable", "name": "Habitable zone & size", "flag": false, "level": null, "text": "Not a planet: too big (285 Earth radii).", "details": {} }, { "id": "ttv", "name": "Transit timing (TTV)", "flag": false, "level": null, "text": "145 transits arrive on time (scatter 4.0 min, errors 1.8 min).", "details": { "n_transits": 145, "rms_min": 4.013159, "err_min": 1.827659, "p": 0.0, "periodicity": { "period_epochs": 6765.0, "fap": 0.004975, "freq": 0.000148 }, "o_minus_c_min": [ -8.039026, -6.309408, -4.579791, -11.490173, -7.166939, -12.337999, -4.55553, -12.329912, -8.872295, -6.278677, -5.41306, -3.683443, 4.105497, -1.073651, 1.519966, -17.486416, -13.163181, -11.433564, -8.839947, -7.974329, -3.652712, -2.774155, -1.044538, -0.17892, 0.686697, 4.144315, -4.494068, -3.628451, -1.898833, -10.537216, 0.304384, -3.149998, -2.284381, -2.282764, -1.417146, -1.415529, -1.413911, 1.179706, -3.138676, -0.545059, -3.999442, 2.050176, 0.323793, 2.917411, 2.919028, 2.05988, 2.061498, 1.199115, 2.064732, 3.79435, 2.067967, 3.797585, 6.391202, 2.07282, 2.077672, 2.079289, 2.080907, 3.810524, 1.038689, 2.768307, 2.769924, 3.635542, 1.909159, 2.774776, 3.640394, 1.915629, 1.917246, 4.510864, 2.784481, 5.378098, 3.651716, 3.653333, 2.794185, 1.067803, 3.66142, 1.935038, 4.528655, 2.802272, 1.07589, -0.650493, 1.943125, 0.216742, 2.81036, -3.236023, 0.221594, -1.504788, 0.224829, -12.269658, -0.172041, -1.898423, -1.032806, -1.031188, -1.893571, -2.755953, -0.162336, -1.888719, 0.704899, -1.021484, -1.883866, 1.573751, -1.880632, 2.444221, -0.146162, -0.144545, -1.006927, -0.14131, -1.003692, 1.589925, -1.000457, -0.13484, -0.997223, -0.995605, 0.734012, -0.12837, 0.737247, 0.738864, 0.740482, -0.984283, -0.982666, -1.845049, -0.115431, -0.977814, -0.112196, 0.753421, -0.108961, -0.107344, -0.969727, 0.759891, -1.830492, 0.763126, -5.283257, 0.767978, 0.769595, -0.092787, 1.63683, 1.638447, -0.951935, 0.777682, 0.780917, -0.945465, -0.079848, -0.078231, -0.076613, -0.074996, 0.790622 ], "epochs": [ 1.0, 2.0, 3.0, 4.0, 6.0, 14.0, 18.0, 19.0, 20.0, 21.0, 22.0, 23.0, 31.0, 34.0, 35.0, 36.0, 38.0, 39.0, 40.0, 41.0, 42.0, 51.0, 52.0, 53.0, 54.0, 55.0, 56.0, 57.0, 58.0, 59.0, 886.0, 887.0, 888.0, 889.0, 890.0, 891.0, 892.0, 893.0, 894.0, 895.0, 896.0, 897.0, 898.0, 899.0, 900.0, 903.0, 904.0, 905.0, 906.0, 907.0, 908.0, 909.0, 910.0, 911.0, 914.0, 915.0, 916.0, 917.0, 1340.0, 1341.0, 1342.0, 1343.0, 1344.0, 1345.0, 1346.0, 1348.0, 1349.0, 1350.0, 1351.0, 1352.0, 1353.0, 1354.0, 1357.0, 1358.0, 1359.0, 1360.0, 1361.0, 1362.0, 1363.0, 1364.0, 1365.0, 1366.0, 1367.0, 1368.0, 1369.0, 1370.0, 1371.0, 2193.0, 2194.0, 2195.0, 2196.0, 2197.0, 2198.0, 2199.0, 2200.0, 2201.0, 2202.0, 2203.0, 2204.0, 2205.0, 2206.0, 2209.0, 2210.0, 2211.0, 2212.0, 2213.0, 2214.0, 2215.0, 2216.0, 2217.0, 2218.0, 2219.0, 2220.0, 2221.0, 2222.0, 2223.0, 2224.0, 2226.0, 2227.0, 2228.0, 2229.0, 2230.0, 2231.0, 2232.0, 2233.0, 2234.0, 2235.0, 2236.0, 2237.0, 2238.0, 2239.0, 2241.0, 2242.0, 2243.0, 2244.0, 2245.0, 2246.0, 2247.0, 2249.0, 2250.0, 2251.0, 2252.0, 2253.0, 2254.0, 2255.0 ] } }, { "id": "tdv", "name": "Transit duration (TDV)", "flag": false, "level": null, "text": "Transit length steady.", "details": { "p": 0.0, "rms_h": 0.296899 } }, { "id": "depth_change", "name": "Changing transit depth", "flag": false, "level": null, "text": "Transit depth steady.", "details": { "p": 0.0, "rel_rms": 0.227799 } }, { "id": "asymmetry", "name": "Lopsided transit", "flag": false, "level": null, "text": "The transit is symmetric.", "details": { "p": 0.0 } }, { "id": "check_heartbeat_selflensing", "name": "heartbeat selflensing", "flag": false, "level": null, "text": "Could not run: OutOfMemoryError: Out of memory allocating 239,973,376 bytes (allocated so far: 2,614,506,496 bytes, limit set to: 2,684,354,560 bytes).", "details": {} }, { "id": "giant_host", "name": "Transits of a giant star", "flag": true, "level": "notable", "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.", "details": { "abs_g": 1.2303, "bp_rp": 1.6424 } }, { "id": "check_more_signals", "name": "more signals", "flag": false, "level": null, "text": "Could not run: OutOfMemoryError: Out of memory allocating 239,973,376 bytes (allocated so far: 2,614,506,496 bytes, limit set to: 2,684,354,560 bytes).", "details": {} } ], "plot": "10_rare_check.png" }