{
 "known": true,
 "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"
 ],
 "known_version": 5,
 "tic": "265274458",
 "version": 3,
 "when": "2026-10-12 20:05",
 "device": "GPU: NVIDIA GeForce RTX 4070 (CUDA, CuPy)",
 "seconds": 2497.3,
 "kind": "EB",
 "sectors": [
  17,
  19,
  24,
  25,
  52,
  58,
  59,
  78,
  79,
  85,
  86
 ],
 "points": 64956,
 "signal": {
  "P": 2.99782,
  "T0": 1766.35096,
  "dur": 0.12,
  "depth": 0.062794,
  "rp": 62.526066,
  "source": "found here",
  "snr": 1111.87261,
  "secondary_phase": 0.870589
 },
 "star": {
  "rad": 2.28706,
  "mass": 1.92,
  "teff": 7972.0,
  "logg": 4.00282,
  "abs_g": 2.8298,
  "bp_rp": 0.7975,
  "dist": 827.9097
 },
 "flags": [
  "boyajian",
  "eccentric_eb"
 ],
 "best_level": "candidate",
 "headline": "Irregular deep dimming; Eccentric eclipsing binary",
 "checks": [
  {
   "id": "microlensing",
   "name": "Microlensing (rogue planet?)",
   "flag": false,
   "level": null,
   "text": "6 brightening(s), none shaped like a one-off lens event.",
   "details": {}
  },
  {
   "id": "superflare",
   "name": "Superflare",
   "flag": false,
   "level": null,
   "text": "1 flare(s) seen (not a Sun-like star).",
   "details": {
    "energy_erg": 2.613981671182024e+37,
    "n_flares": 1
   }
  },
  {
   "id": "exocomet",
   "name": "Exocomet-shaped dip",
   "flag": false,
   "level": null,
   "text": "No comet-shaped dips.",
   "details": {}
  },
  {
   "id": "boyajian",
   "name": "Irregular deep dimming",
   "flag": true,
   "level": "candidate",
   "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.",
   "details": {
    "n_dips": 10,
    "times": [
     2921.518884,
     2927.498884,
     2931.548884,
     3436.918884,
     3439.708884,
     3441.258884,
     3442.618884,
     3446.128884,
     3447.138884,
     3448.738884
    ],
    "depths": [
     0.14734,
     0.125932,
     0.046633,
     0.041159,
     0.062511,
     0.026893,
     0.021851,
     0.019921,
     0.013336,
     0.010453
    ]
   }
  },
  {
   "id": "etv",
   "name": "Eclipse timing (third body?)",
   "flag": false,
   "level": null,
   "text": "66 eclipses on schedule (scatter 2.2 min).",
   "details": {
    "rms_min": 2.23103,
    "p": 0.0,
    "periodicity": {
     "period_epochs": 19.147914,
     "fap": 0.004975,
     "freq": 0.052225
    },
    "quad": {
     "dchi2": 17.03454,
     "curv_min_per_cycle2": 1.2e-05
    },
    "o_minus_c_min": [
     3.36489,
     4.225075,
     -0.960832,
     5.081446,
     -0.104461,
     1.602559,
     2.464652,
     1.514825,
     -1.943082,
     -1.944989,
     -1.082896,
     -1.948804,
     -5.406711,
     -4.544618,
     -2.818525,
     -1.107691,
     -3.291525,
     -2.429432,
     -0.703339,
     0.156846,
     1.882939,
     1.881032,
     -0.802517,
     -0.804424,
     -2.534331,
     -2.536238,
     -3.402146,
     -2.540053,
     -2.54196,
     0.048133,
     1.774225,
     1.770411,
     0.904504,
     1.766596,
     0.898782,
     0.032875,
     0.894967,
     1.75706,
     2.302548,
     2.300641,
     0.570734,
     0.568827,
     1.430919,
     1.427105,
     -1.166802,
     0.55929,
     -1.170617,
     -2.900524,
     -3.766431,
     -2.904339,
     -1.178246,
     0.547847,
     1.32602,
     2.188113,
     2.186206,
     2.184299,
     2.182391,
     1.316484,
     0.450577,
     -0.415331,
     -3.009238,
     -3.875145,
     -1.28696,
     -2.152867,
     0.437226,
     3.023504
    ],
    "epochs": [
     0.0,
     2.0,
     3.0,
     6.0,
     7.0,
     18.0,
     19.0,
     64.0,
     65.0,
     66.0,
     67.0,
     68.0,
     69.0,
     70.0,
     71.0,
     80.0,
     319.0,
     320.0,
     321.0,
     323.0,
     324.0,
     325.0,
     373.0,
     374.0,
     375.0,
     376.0,
     377.0,
     378.0,
     379.0,
     380.0,
     381.0,
     383.0,
     384.0,
     385.0,
     387.0,
     388.0,
     389.0,
     390.0,
     557.0,
     558.0,
     559.0,
     560.0,
     561.0,
     563.0,
     564.0,
     565.0,
     566.0,
     567.0,
     568.0,
     569.0,
     570.0,
     571.0,
     616.0,
     617.0,
     618.0,
     619.0,
     620.0,
     621.0,
     622.0,
     623.0,
     624.0,
     625.0,
     627.0,
     628.0,
     629.0,
     632.0
    ]
   }
  },
  {
   "id": "eccentric_eb",
   "name": "Eccentric eclipsing binary",
   "flag": true,
   "level": "notable",
   "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.",
   "details": {
    "secondary_phase": 0.200102,
    "ecosw": -0.471079,
    "secondary_depth": 0.004754,
    "secondary_snr": 40.518473
   }
  },
  {
   "id": "eclipse_depth_change",
   "name": "Eclipses changing depth",
   "flag": false,
   "level": null,
   "text": "Eclipse depth the same in every sector.",
   "details": {
    "p": 6e-06,
    "rel_change": 0.106459,
    "per_sector": [
     [
      17,
      0.063649
     ],
     [
      19,
      0.063605
     ],
     [
      24,
      0.064157
     ],
     [
      52,
      0.063932
     ],
     [
      58,
      0.067233
     ],
     [
      59,
      0.064028
     ],
     [
      78,
      0.065797
     ],
     [
      79,
      0.062929
     ],
     [
      85,
      0.064506
     ],
     [
      86,
      0.0604
     ]
    ]
   }
  },
  {
   "id": "eb_pulsator",
   "name": "Pulsating star in an eclipsing binary",
   "flag": false,
   "level": null,
   "text": "No pulsations besides the eclipses.",
   "details": {
    "freq_per_day": 5.986791,
    "amp_ppm": 245.275779,
    "snr": 2.942891
   }
  },
  {
   "id": "circumbinary",
   "name": "Extra dips outside the eclipses",
   "flag": false,
   "level": null,
   "text": "No extra dips between the eclipses.",
   "details": {
    "times": [],
    "depths": []
   }
  },
  {
   "id": "check_heartbeat_selflensing",
   "name": "heartbeat selflensing",
   "flag": false,
   "level": null,
   "text": "Could not run: OutOfMemoryError: Out of memory allocating 239,993,344 bytes (allocated so far: 2,577,910,784 bytes, limit set to: 2,684,354,560 bytes).",
   "details": {}
  },
  {
   "id": "host",
   "name": "Type of star",
   "flag": false,
   "level": null,
   "text": "From Gaia: main sequence.",
   "details": {
    "kind": "main sequence"
   }
  },
  {
   "id": "check_more_signals",
   "name": "more signals",
   "flag": false,
   "level": null,
   "text": "Could not run: OutOfMemoryError: Out of memory allocating 239,993,344 bytes (allocated so far: 2,577,910,784 bytes, limit set to: 2,684,354,560 bytes).",
   "details": {}
  }
 ],
 "plot": "10_rare_check.png"
}