{
 "year": "218 BC (astronomical -217)",
 "observer": {
  "lat": 45.0,
  "lon": 7.0
 },
 "calendar": "proleptic Julian",
 "criterion": "star true altitude 0 (mathematical horizon, no refraction) when the sun's true altitude = -h",
 "thresholds_deg": {
  "true (sun -0.833)": -0.833,
  "h=6": -6.0,
  "h=7.5": -7.5,
  "h=9": -9.0,
  "h=11 (Schoch)": -11.0
 },
 "skyfield": {
  "morning_setting": {
   "true (sun -0.833)": {
    "jd": 1642099.5,
    "date": "29 Oct 218 BC"
   },
   "h=6": {
    "jd": 1642105.5,
    "date": "4 Nov 218 BC"
   },
   "h=7.5": {
    "jd": 1642107.5,
    "date": "6 Nov 218 BC"
   },
   "h=9": {
    "jd": 1642108.5,
    "date": "7 Nov 218 BC"
   },
   "h=11 (Schoch)": {
    "jd": 1642110.5,
    "date": "9 Nov 218 BC"
   },
   "_series": [
    [
     "1 Sep 218 BC",
     49.01
    ],
    [
     "6 Sep 218 BC",
     45.22
    ],
    [
     "11 Sep 218 BC",
     41.25
    ],
    [
     "16 Sep 218 BC",
     37.14
    ],
    [
     "21 Sep 218 BC",
     32.93
    ],
    [
     "26 Sep 218 BC",
     28.63
    ],
    [
     "1 Oct 218 BC",
     24.26
    ],
    [
     "6 Oct 218 BC",
     19.84
    ],
    [
     "11 Oct 218 BC",
     15.36
    ],
    [
     "16 Oct 218 BC",
     10.86
    ],
    [
     "21 Oct 218 BC",
     6.32
    ],
    [
     "26 Oct 218 BC",
     1.77
    ],
    [
     "31 Oct 218 BC",
     -2.79
    ],
    [
     "5 Nov 218 BC",
     -7.35
    ],
    [
     "10 Nov 218 BC",
     -11.92
    ],
    [
     "15 Nov 218 BC",
     -16.46
    ],
    [
     "20 Nov 218 BC",
     -20.99
    ],
    [
     "25 Nov 218 BC",
     -25.48
    ],
    [
     "30 Nov 218 BC",
     -29.92
    ],
    [
     "5 Dec 218 BC",
     -34.29
    ],
    [
     "10 Dec 218 BC",
     -38.58
    ],
    [
     "15 Dec 218 BC",
     -42.75
    ],
    [
     "20 Dec 218 BC",
     -46.78
    ],
    [
     "25 Dec 218 BC",
     -50.61
    ],
    [
     "30 Dec 218 BC",
     -54.18
    ]
   ]
  },
  "evening_setting": {
   "true (sun -0.833)": {
    "jd": 1641911.5,
    "date": "24 Apr 218 BC"
   },
   "h=6": {
    "jd": 1641905.5,
    "date": "18 Apr 218 BC"
   },
   "h=7.5": {
    "jd": 1641903.5,
    "date": "16 Apr 218 BC"
   },
   "h=9": {
    "jd": 1641902.5,
    "date": "15 Apr 218 BC"
   },
   "h=11 (Schoch)": {
    "jd": 1641899.5,
    "date": "12 Apr 218 BC"
   },
   "_series": [
    [
     "1 Feb 218 BC",
     -63.32
    ],
    [
     "6 Feb 218 BC",
     -61.62
    ],
    [
     "11 Feb 218 BC",
     -59.27
    ],
    [
     "16 Feb 218 BC",
     -56.39
    ],
    [
     "21 Feb 218 BC",
     -53.13
    ],
    [
     "26 Feb 218 BC",
     -49.59
    ],
    [
     "3 Mar 218 BC",
     -45.83
    ],
    [
     "8 Mar 218 BC",
     -41.91
    ],
    [
     "13 Mar 218 BC",
     -37.88
    ],
    [
     "18 Mar 218 BC",
     -33.76
    ],
    [
     "23 Mar 218 BC",
     -29.58
    ],
    [
     "28 Mar 218 BC",
     -25.35
    ],
    [
     "2 Apr 218 BC",
     -20.24
    ],
    [
     "7 Apr 218 BC",
     -15.95
    ],
    [
     "12 Apr 218 BC",
     -11.65
    ],
    [
     "17 Apr 218 BC",
     -7.34
    ],
    [
     "22 Apr 218 BC",
     -3.03
    ],
    [
     "27 Apr 218 BC",
     1.28
    ],
    [
     "2 May 218 BC",
     5.57
    ],
    [
     "7 May 218 BC",
     9.85
    ],
    [
     "12 May 218 BC",
     14.12
    ],
    [
     "17 May 218 BC",
     18.36
    ],
    [
     "22 May 218 BC",
     22.57
    ],
    [
     "27 May 218 BC",
     26.75
    ],
    [
     "1 Jun 218 BC",
     30.87
    ],
    [
     "6 Jun 218 BC",
     34.94
    ],
    [
     "11 Jun 218 BC",
     38.92
    ],
    [
     "16 Jun 218 BC",
     42.82
    ],
    [
     "21 Jun 218 BC",
     46.59
    ],
    [
     "26 Jun 218 BC",
     50.19
    ]
   ]
  },
  "acronychal_rising": {
   "true (sun -0.833)": {
    "jd": 1642084.5,
    "date": "14 Oct 218 BC"
   },
   "h=6": {
    "jd": 1642070.5,
    "date": "30 Sep 218 BC"
   },
   "h=7.5": {
    "jd": 1642065.5,
    "date": "25 Sep 218 BC"
   },
   "h=9": {
    "jd": 1642061.5,
    "date": "21 Sep 218 BC"
   },
   "h=11 (Schoch)": {
    "jd": 1642055.5,
    "date": "15 Sep 218 BC"
   },
   "_series": [
    [
     "1 Aug 218 BC",
     -21.33
    ],
    [
     "6 Aug 218 BC",
     -20.79
    ],
    [
     "11 Aug 218 BC",
     -20.1
    ],
    [
     "16 Aug 218 BC",
     -19.25
    ],
    [
     "21 Aug 218 BC",
     -18.27
    ],
    [
     "26 Aug 218 BC",
     -17.15
    ],
    [
     "31 Aug 218 BC",
     -15.64
    ],
    [
     "5 Sep 218 BC",
     -14.27
    ],
    [
     "10 Sep 218 BC",
     -12.78
    ],
    [
     "15 Sep 218 BC",
     -11.21
    ],
    [
     "20 Sep 218 BC",
     -9.55
    ],
    [
     "25 Sep 218 BC",
     -7.83
    ],
    [
     "30 Sep 218 BC",
     -6.05
    ],
    [
     "5 Oct 218 BC",
     -4.22
    ],
    [
     "10 Oct 218 BC",
     -2.36
    ],
    [
     "15 Oct 218 BC",
     -0.48
    ],
    [
     "20 Oct 218 BC",
     1.41
    ],
    [
     "25 Oct 218 BC",
     3.29
    ],
    [
     "30 Oct 218 BC",
     5.15
    ],
    [
     "4 Nov 218 BC",
     6.98
    ],
    [
     "9 Nov 218 BC",
     8.76
    ],
    [
     "14 Nov 218 BC",
     10.49
    ],
    [
     "19 Nov 218 BC",
     12.14
    ],
    [
     "24 Nov 218 BC",
     13.71
    ],
    [
     "29 Nov 218 BC",
     15.18
    ]
   ]
  },
  "heliacal_rising": {
   "true (sun -0.833)": {
    "jd": 1641904.5,
    "date": "17 Apr 218 BC"
   },
   "h=6": {
    "jd": 1641919.5,
    "date": "2 May 218 BC"
   },
   "h=7.5": {
    "jd": 1641923.5,
    "date": "6 May 218 BC"
   },
   "h=9": {
    "jd": 1641928.5,
    "date": "11 May 218 BC"
   },
   "h=11 (Schoch)": {
    "jd": 1641934.5,
    "date": "17 May 218 BC"
   },
   "_series": [
    [
     "15 Apr 218 BC",
     -0.28
    ],
    [
     "20 Apr 218 BC",
     -2.07
    ],
    [
     "25 Apr 218 BC",
     -3.85
    ],
    [
     "30 Apr 218 BC",
     -5.6
    ],
    [
     "5 May 218 BC",
     -7.31
    ],
    [
     "10 May 218 BC",
     -8.97
    ],
    [
     "15 May 218 BC",
     -10.58
    ],
    [
     "20 May 218 BC",
     -12.13
    ],
    [
     "25 May 218 BC",
     -13.59
    ],
    [
     "30 May 218 BC",
     -14.97
    ],
    [
     "4 Jun 218 BC",
     -16.25
    ],
    [
     "9 Jun 218 BC",
     -17.43
    ],
    [
     "14 Jun 218 BC",
     -18.48
    ],
    [
     "19 Jun 218 BC",
     -19.42
    ],
    [
     "24 Jun 218 BC",
     -20.22
    ],
    [
     "29 Jun 218 BC",
     -20.88
    ],
    [
     "4 Jul 218 BC",
     -21.39
    ]
   ]
  },
  "alcyone_apparent_218BC": {
   "ra_hours": 1.7115177118189766,
   "dec_deg": 14.883424163220553
  },
  "ephemeris": "de406.bsp"
 },
 "pyephem": {
  "morning_setting": {
   "true (sun -0.833)": {
    "jd": 1642099.5,
    "date": "29 Oct 218 BC"
   },
   "h=6": {
    "jd": 1642105.5,
    "date": "4 Nov 218 BC"
   },
   "h=7.5": {
    "jd": 1642107.5,
    "date": "6 Nov 218 BC"
   },
   "h=9": {
    "jd": 1642108.5,
    "date": "7 Nov 218 BC"
   },
   "h=11 (Schoch)": {
    "jd": 1642110.5,
    "date": "9 Nov 218 BC"
   },
   "_series": [
    [
     "1 Sep 218 BC",
     49.0
    ],
    [
     "6 Sep 218 BC",
     45.21
    ],
    [
     "11 Sep 218 BC",
     41.24
    ],
    [
     "16 Sep 218 BC",
     37.13
    ],
    [
     "21 Sep 218 BC",
     32.92
    ],
    [
     "26 Sep 218 BC",
     28.62
    ],
    [
     "1 Oct 218 BC",
     24.25
    ],
    [
     "6 Oct 218 BC",
     19.82
    ],
    [
     "11 Oct 218 BC",
     15.35
    ],
    [
     "16 Oct 218 BC",
     10.84
    ],
    [
     "21 Oct 218 BC",
     6.31
    ],
    [
     "26 Oct 218 BC",
     1.76
    ],
    [
     "31 Oct 218 BC",
     -2.8
    ],
    [
     "5 Nov 218 BC",
     -7.37
    ],
    [
     "10 Nov 218 BC",
     -11.93
    ],
    [
     "15 Nov 218 BC",
     -16.48
    ],
    [
     "20 Nov 218 BC",
     -21.0
    ],
    [
     "25 Nov 218 BC",
     -25.49
    ],
    [
     "30 Nov 218 BC",
     -29.93
    ],
    [
     "5 Dec 218 BC",
     -34.3
    ],
    [
     "10 Dec 218 BC",
     -38.59
    ],
    [
     "15 Dec 218 BC",
     -42.77
    ],
    [
     "20 Dec 218 BC",
     -46.8
    ],
    [
     "25 Dec 218 BC",
     -50.62
    ],
    [
     "30 Dec 218 BC",
     -54.19
    ]
   ]
  },
  "evening_setting": {
   "true (sun -0.833)": {
    "jd": 1641911.5,
    "date": "24 Apr 218 BC"
   },
   "h=6": {
    "jd": 1641905.5,
    "date": "18 Apr 218 BC"
   },
   "h=7.5": {
    "jd": 1641903.5,
    "date": "16 Apr 218 BC"
   },
   "h=9": {
    "jd": 1641902.5,
    "date": "15 Apr 218 BC"
   },
   "h=11 (Schoch)": {
    "jd": 1641899.5,
    "date": "12 Apr 218 BC"
   },
   "_series": [
    [
     "1 Feb 218 BC",
     -63.33
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    [
     "6 Feb 218 BC",
     -61.2
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    [
     "11 Feb 218 BC",
     -58.72
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    [
     "16 Feb 218 BC",
     -55.76
    ],
    [
     "21 Feb 218 BC",
     -52.44
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    [
     "26 Feb 218 BC",
     -48.84
    ],
    [
     "3 Mar 218 BC",
     -45.04
    ],
    [
     "8 Mar 218 BC",
     -41.1
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    [
     "13 Mar 218 BC",
     -37.05
    ],
    [
     "18 Mar 218 BC",
     -32.92
    ],
    [
     "23 Mar 218 BC",
     -28.73
    ],
    [
     "28 Mar 218 BC",
     -24.49
    ],
    [
     "2 Apr 218 BC",
     -20.22
    ],
    [
     "7 Apr 218 BC",
     -15.94
    ],
    [
     "12 Apr 218 BC",
     -11.64
    ],
    [
     "17 Apr 218 BC",
     -7.33
    ],
    [
     "22 Apr 218 BC",
     -3.02
    ],
    [
     "27 Apr 218 BC",
     1.29
    ],
    [
     "2 May 218 BC",
     5.59
    ],
    [
     "7 May 218 BC",
     9.87
    ],
    [
     "12 May 218 BC",
     14.13
    ],
    [
     "17 May 218 BC",
     18.37
    ],
    [
     "22 May 218 BC",
     22.59
    ],
    [
     "27 May 218 BC",
     26.76
    ],
    [
     "1 Jun 218 BC",
     30.89
    ],
    [
     "6 Jun 218 BC",
     34.95
    ],
    [
     "11 Jun 218 BC",
     38.94
    ],
    [
     "16 Jun 218 BC",
     42.83
    ],
    [
     "21 Jun 218 BC",
     46.6
    ],
    [
     "26 Jun 218 BC",
     50.21
    ]
   ]
  },
  "acronychal_rising": {
   "true (sun -0.833)": {
    "jd": 1642084.5,
    "date": "14 Oct 218 BC"
   },
   "h=6": {
    "jd": 1642070.5,
    "date": "30 Sep 218 BC"
   },
   "h=7.5": {
    "jd": 1642065.5,
    "date": "25 Sep 218 BC"
   },
   "h=9": {
    "jd": 1642061.5,
    "date": "21 Sep 218 BC"
   },
   "h=11 (Schoch)": {
    "jd": 1642055.5,
    "date": "15 Sep 218 BC"
   },
   "_series": [
    [
     "1 Aug 218 BC",
     -21.23
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    [
     "6 Aug 218 BC",
     -20.66
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    [
     "11 Aug 218 BC",
     -19.94
    ],
    [
     "16 Aug 218 BC",
     -19.06
    ],
    [
     "21 Aug 218 BC",
     -18.05
    ],
    [
     "26 Aug 218 BC",
     -16.91
    ],
    [
     "31 Aug 218 BC",
     -15.64
    ],
    [
     "5 Sep 218 BC",
     -14.26
    ],
    [
     "10 Sep 218 BC",
     -12.78
    ],
    [
     "15 Sep 218 BC",
     -11.2
    ],
    [
     "20 Sep 218 BC",
     -9.55
    ],
    [
     "25 Sep 218 BC",
     -7.82
    ],
    [
     "30 Sep 218 BC",
     -6.04
    ],
    [
     "5 Oct 218 BC",
     -4.22
    ],
    [
     "10 Oct 218 BC",
     -2.36
    ],
    [
     "15 Oct 218 BC",
     -0.48
    ],
    [
     "20 Oct 218 BC",
     1.41
    ],
    [
     "25 Oct 218 BC",
     3.29
    ],
    [
     "30 Oct 218 BC",
     5.15
    ],
    [
     "4 Nov 218 BC",
     6.98
    ],
    [
     "9 Nov 218 BC",
     8.77
    ],
    [
     "14 Nov 218 BC",
     10.49
    ],
    [
     "19 Nov 218 BC",
     12.15
    ],
    [
     "24 Nov 218 BC",
     13.71
    ],
    [
     "29 Nov 218 BC",
     15.18
    ]
   ]
  },
  "heliacal_rising": {
   "true (sun -0.833)": {
    "jd": 1641904.5,
    "date": "17 Apr 218 BC"
   },
   "h=6": {
    "jd": 1641919.5,
    "date": "2 May 218 BC"
   },
   "h=7.5": {
    "jd": 1641923.5,
    "date": "6 May 218 BC"
   },
   "h=9": {
    "jd": 1641928.5,
    "date": "11 May 218 BC"
   },
   "h=11 (Schoch)": {
    "jd": 1641934.5,
    "date": "17 May 218 BC"
   },
   "_series": [
    [
     "15 Apr 218 BC",
     -0.29
    ],
    [
     "20 Apr 218 BC",
     -2.08
    ],
    [
     "25 Apr 218 BC",
     -3.85
    ],
    [
     "30 Apr 218 BC",
     -5.6
    ],
    [
     "5 May 218 BC",
     -7.31
    ],
    [
     "10 May 218 BC",
     -8.98
    ],
    [
     "15 May 218 BC",
     -10.59
    ],
    [
     "20 May 218 BC",
     -12.13
    ],
    [
     "25 May 218 BC",
     -13.6
    ],
    [
     "30 May 218 BC",
     -14.97
    ],
    [
     "4 Jun 218 BC",
     -16.25
    ],
    [
     "9 Jun 218 BC",
     -17.43
    ],
    [
     "14 Jun 218 BC",
     -18.49
    ],
    [
     "19 Jun 218 BC",
     -19.42
    ],
    [
     "24 Jun 218 BC",
     -20.22
    ],
    [
     "29 Jun 218 BC",
     -20.88
    ],
    [
     "4 Jul 218 BC",
     -21.39
    ],
    [
     "9 Jul 218 BC",
     -21.84
    ]
   ]
  },
  "alcyone_apparent_218BC": {
   "ra_hours": 1.7106142287403772,
   "dec_deg": 14.877747033034463
  }
 }
}