{
 "licence": "CC BY-SA 4.0",
 "licenceUrl": "https://creativecommons.org/licenses/by-sa/4.0/",
 "credit": "Adapted from OpenNGC by Mattia Verga (CC BY-SA 4.0), which draws on NED, HyperLEDA, SIMBAD (CDS) and HEASARC; a few objects from SIMBAD (CDS); distances and names from Wikidata (CC0); globular cluster distances and some magnitudes from Harris (1996, 2010 edition). See SOURCES.md and deepsky-provenance.tsv.",
 "sources": {
  "openngc": "be3cd6c5498806a2fbb2f7e0452ef802dbb02be0",
  "fetched": "2026-10-28T09:02:57+00:00"
 },
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   "names": [
    "Crab Nebula"
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   "raDeg": 83.63321,
   "decDeg": 22.01447,
   "constellation": "Tau",
   "vmag": 8.4,
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   "angleDeg": null,
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   "note": null
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  {
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   "messier": 2,
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  },
  {
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   "messier": 3,
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  },
  {
   "id": "M4",
   "messier": 4,
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   "names": [],
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  {
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  {
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   "designation": "NGC 6705",
   "names": [
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    "Amas de l'Ecu de Sobieski"
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  {
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   "designation": "NGC 6218",
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  {
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  {
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  {
   "id": "M17",
   "messier": 17,
   "designation": "NGC 6618",
   "names": [
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    "Checkmark Nebula",
    "Lobster Nebula",
    "Swan Nebula"
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  {
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  {
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  {
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  {
   "id": "M30",
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  {
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   "messier": 31,
   "designation": "NGC 224",
   "names": [
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   "type": "galaxy",
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  {
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   "designation": "NGC 221",
   "names": [],
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  {
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   "designation": "NGC 598",
   "names": [
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    "Triangulum Pinwheel"
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  {
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   "designation": "NGC 1039",
   "names": [],
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  {
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   "designation": "NGC 2168",
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  {
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  {
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  {
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   "type": "double star",
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  {
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  {
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   "designation": "NGC 1976",
   "names": [
    "Orion Nebula",
    "Great Orion Nebula"
   ],
   "type": "star cluster and nebula",
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  {
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  {
   "id": "M44",
   "messier": 44,
   "designation": "NGC 2632",
   "names": [
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    "Beehive",
    "Praesepe Cluster"
   ],
   "type": "open cluster",
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   "constellation": "Cnc",
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  {
   "id": "M45",
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   "names": [
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   "type": "open cluster",
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  {
   "id": "M46",
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   "messier": 47,
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    "Owl Nebula"
   ],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 168.69879,
   "decDeg": 55.01903,
   "constellation": "UMa",
   "vmag": 9.9,
   "majorArcmin": 3.58,
   "minorArcmin": 3.58,
   "angleDeg": null,
   "distanceLy": 2870,
   "note": null
  },
  {
   "id": "M98",
   "messier": 98,
   "designation": "NGC 4192",
   "names": [],
   "type": "galaxy",
   "morphology": "SABb",
   "raDeg": 183.45121,
   "decDeg": 14.90033,
   "constellation": "Com",
   "vmag": 10.84,
   "majorArcmin": 11.04,
   "minorArcmin": 2.66,
   "angleDeg": 152.0,
   "distanceLy": 57500000,
   "note": null
  },
  {
   "id": "M99",
   "messier": 99,
   "designation": "NGC 4254",
   "names": [
    "Coma Pinwheel",
    "Virgo Cluster Pinwheel"
   ],
   "type": "galaxy",
   "morphology": "Sc",
   "raDeg": 184.70667,
   "decDeg": 14.4165,
   "constellation": "Com",
   "vmag": 9.84,
   "majorArcmin": 5.04,
   "minorArcmin": 4.74,
   "angleDeg": 23.0,
   "distanceLy": 45000000,
   "note": null
  },
  {
   "id": "M100",
   "messier": 100,
   "designation": "NGC 4321",
   "names": [],
   "type": "galaxy",
   "morphology": "SABb",
   "raDeg": 185.72846,
   "decDeg": 15.82181,
   "constellation": "Com",
   "vmag": 9.47,
   "majorArcmin": 6.1,
   "minorArcmin": 5.62,
   "angleDeg": 108.0,
   "distanceLy": 45000000,
   "note": null
  },
  {
   "id": "M101",
   "messier": 101,
   "designation": "NGC 5457",
   "names": [
    "Pinwheel Galaxy"
   ],
   "type": "galaxy",
   "morphology": "SABc",
   "raDeg": 210.80225,
   "decDeg": 54.34894,
   "constellation": "UMa",
   "vmag": 7.9,
   "majorArcmin": 23.99,
   "minorArcmin": 23.07,
   "angleDeg": 28.0,
   "distanceLy": 22700000,
   "note": null
  },
  {
   "id": "M102",
   "messier": 102,
   "designation": "NGC 5866",
   "names": [],
   "type": "galaxy",
   "morphology": "S0-a",
   "raDeg": 226.62292,
   "decDeg": 55.76322,
   "constellation": "Dra",
   "vmag": 9.89,
   "majorArcmin": 6.31,
   "minorArcmin": 2.72,
   "angleDeg": 126.0,
   "distanceLy": 48000000,
   "note": "Messier's M102 is disputed. We take it as NGC 5866, as Wikidata does, and SIMBAD's M 102 is NGC 5866; OpenNGC and NASA's HEASARC Messier table treat it as a duplicate of M101."
  },
  {
   "id": "M103",
   "messier": 103,
   "designation": "NGC 581",
   "names": [],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 23.34088,
   "decDeg": 60.658,
   "constellation": "Cas",
   "vmag": null,
   "majorArcmin": 4.5,
   "minorArcmin": 4.5,
   "angleDeg": null,
   "distanceLy": 7160,
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  },
  {
   "id": "M104",
   "messier": 104,
   "designation": "NGC 4594",
   "names": [
    "Sombrero Galaxy"
   ],
   "type": "galaxy",
   "morphology": "Sa",
   "raDeg": 189.99762,
   "decDeg": -11.62306,
   "constellation": "Vir",
   "vmag": 8.59,
   "majorArcmin": 8.45,
   "minorArcmin": 4.91,
   "angleDeg": 90.0,
   "distanceLy": 36800000,
   "note": null
  },
  {
   "id": "M105",
   "messier": 105,
   "designation": "NGC 3379",
   "names": [],
   "type": "galaxy",
   "morphology": "E",
   "raDeg": 161.95663,
   "decDeg": 12.58161,
   "constellation": "Leo",
   "vmag": 9.27,
   "majorArcmin": 4.89,
   "minorArcmin": 4.25,
   "angleDeg": 71.0,
   "distanceLy": 36600000,
   "note": null
  },
  {
   "id": "M106",
   "messier": 106,
   "designation": "NGC 4258",
   "names": [],
   "type": "galaxy",
   "morphology": "Sbc",
   "raDeg": 184.73958,
   "decDeg": 47.30397,
   "constellation": "CVn",
   "vmag": 9.29,
   "majorArcmin": 16.98,
   "minorArcmin": 7.24,
   "angleDeg": 150.0,
   "distanceLy": 24400000,
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  },
  {
   "id": "M107",
   "messier": 107,
   "designation": "NGC 6171",
   "names": [],
   "type": "globular cluster",
   "morphology": null,
   "raDeg": 248.133,
   "decDeg": -13.05364,
   "constellation": "Oph",
   "vmag": 7.93,
   "majorArcmin": 7.8,
   "minorArcmin": 7.8,
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   "distanceLy": 21000,
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  },
  {
   "id": "M108",
   "messier": 108,
   "designation": "NGC 3556",
   "names": [],
   "type": "galaxy",
   "morphology": "Sc",
   "raDeg": 167.87904,
   "decDeg": 55.67411,
   "constellation": "UMa",
   "vmag": 10.05,
   "majorArcmin": 3.98,
   "minorArcmin": 1.66,
   "angleDeg": 79.0,
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  },
  {
   "id": "M109",
   "messier": 109,
   "designation": "NGC 3992",
   "names": [],
   "type": "galaxy",
   "morphology": "Sbc",
   "raDeg": 179.39992,
   "decDeg": 53.37453,
   "constellation": "UMa",
   "vmag": 9.88,
   "majorArcmin": 8.07,
   "minorArcmin": 5.64,
   "angleDeg": 78.0,
   "distanceLy": 85000000,
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  },
  {
   "id": "M110",
   "messier": 110,
   "designation": "NGC 205",
   "names": [],
   "type": "galaxy",
   "morphology": "E",
   "raDeg": 10.092,
   "decDeg": 41.68531,
   "constellation": "And",
   "vmag": 8.15,
   "majorArcmin": 16.22,
   "minorArcmin": 9.59,
   "angleDeg": 170.0,
   "distanceLy": 2600000,
   "note": null
  },
  {
   "id": "Melotte 20",
   "messier": null,
   "designation": "Melotte 20",
   "names": [
    "Alpha Persei Cluster"
   ],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 51.61708,
   "decDeg": 48.975,
   "constellation": "Per",
   "vmag": null,
   "majorArcmin": 243.2,
   "minorArcmin": 243.2,
   "angleDeg": null,
   "distanceLy": 590,
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  },
  {
   "id": "Melotte 111",
   "messier": null,
   "designation": "Melotte 111",
   "names": [
    "Coma Star Cluster"
   ],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 186.01417,
   "decDeg": 25.65194,
   "constellation": "Com",
   "vmag": null,
   "majorArcmin": 253.5,
   "minorArcmin": 253.5,
   "angleDeg": null,
   "distanceLy": null,
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  },
  {
   "id": "Melotte 25",
   "messier": null,
   "designation": "Melotte 25",
   "names": [
    "Hyades"
   ],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 67.44708,
   "decDeg": 16.94806,
   "constellation": "Tau",
   "vmag": null,
   "majorArcmin": 329.0,
   "minorArcmin": 329.0,
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  },
  {
   "id": "IC 2602",
   "messier": null,
   "designation": "IC 2602",
   "names": [
    "Theta Carinae Cluster"
   ],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 160.73946,
   "decDeg": -64.39419,
   "constellation": "Car",
   "vmag": null,
   "majorArcmin": 48.0,
   "minorArcmin": 48.0,
   "angleDeg": null,
   "distanceLy": 544,
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  },
  {
   "id": "NGC 457",
   "messier": null,
   "designation": "NGC 457",
   "names": [
    "Owl Cluster"
   ],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 19.88604,
   "decDeg": 58.29069,
   "constellation": "Cas",
   "vmag": null,
   "majorArcmin": 7.8,
   "minorArcmin": 7.8,
   "angleDeg": null,
   "distanceLy": 7920,
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  },
  {
   "id": "NGC 663",
   "messier": null,
   "designation": "NGC 663",
   "names": [],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 26.56687,
   "decDeg": 61.21819,
   "constellation": "Cas",
   "vmag": null,
   "majorArcmin": 6.0,
   "minorArcmin": 6.0,
   "angleDeg": null,
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  },
  {
   "id": "NGC 884",
   "messier": null,
   "designation": "NGC 884",
   "names": [
    "Chi Persei Cluster"
   ],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 35.63375,
   "decDeg": 57.14411,
   "constellation": "Per",
   "vmag": null,
   "majorArcmin": 10.5,
   "minorArcmin": 10.5,
   "angleDeg": null,
   "distanceLy": 7650,
   "note": null
  },
  {
   "id": "NGC 2362",
   "messier": null,
   "designation": "NGC 2362",
   "names": [],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 109.67279,
   "decDeg": -24.95419,
   "constellation": "CMa",
   "vmag": null,
   "majorArcmin": 7.2,
   "minorArcmin": 7.2,
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   "distanceLy": 3900,
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  },
  {
   "id": "NGC 3532",
   "messier": null,
   "designation": "NGC 3532",
   "names": [
    "Wishing Well Cluster"
   ],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 166.44925,
   "decDeg": -58.7705,
   "constellation": "Car",
   "vmag": null,
   "majorArcmin": 12.0,
   "minorArcmin": 12.0,
   "angleDeg": null,
   "distanceLy": 1620,
   "note": null
  },
  {
   "id": "NGC 4755",
   "messier": null,
   "designation": "NGC 4755",
   "names": [
    "Jewel Box",
    "Herschel's Jewel Box",
    "kappa Crucis Cluster"
   ],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 193.4045,
   "decDeg": -60.35631,
   "constellation": "Cru",
   "vmag": null,
   "majorArcmin": 7.8,
   "minorArcmin": 7.8,
   "angleDeg": null,
   "distanceLy": 6450,
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  },
  {
   "id": "NGC 7789",
   "messier": null,
   "designation": "NGC 7789",
   "names": [],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 359.35025,
   "decDeg": 56.70828,
   "constellation": "Cas",
   "vmag": null,
   "majorArcmin": 14.4,
   "minorArcmin": 14.4,
   "angleDeg": null,
   "distanceLy": 7200,
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  },
  {
   "id": "Stock 2",
   "messier": null,
   "designation": "Stock 2",
   "names": [],
   "type": "open cluster",
   "morphology": null,
   "raDeg": 33.85583,
   "decDeg": 59.52194,
   "constellation": "Cas",
   "vmag": null,
   "majorArcmin": 123.6,
   "minorArcmin": 123.6,
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   "distanceLy": 1700,
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  },
  {
   "id": "NGC 104",
   "messier": null,
   "designation": "NGC 104",
   "names": [
    "47 Tucanae",
    "47 Tuc Cluster"
   ],
   "type": "globular cluster",
   "morphology": null,
   "raDeg": 6.02233,
   "decDeg": -72.08144,
   "constellation": "Tuc",
   "vmag": 4.09,
   "majorArcmin": 31.8,
   "minorArcmin": 31.8,
   "angleDeg": null,
   "distanceLy": 15000,
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  },
  {
   "id": "NGC 5139",
   "messier": null,
   "designation": "NGC 5139",
   "names": [
    "Omega Centauri"
   ],
   "type": "globular cluster",
   "morphology": null,
   "raDeg": 201.69121,
   "decDeg": -47.47686,
   "constellation": "Cen",
   "vmag": 3.68,
   "majorArcmin": 27.0,
   "minorArcmin": 27.0,
   "angleDeg": null,
   "distanceLy": 17000,
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  },
  {
   "id": "NGC 6712",
   "messier": null,
   "designation": "NGC 6712",
   "names": [],
   "type": "globular cluster",
   "morphology": null,
   "raDeg": 283.27038,
   "decDeg": -8.70547,
   "constellation": "Sct",
   "vmag": 8.1,
   "majorArcmin": 5.7,
   "minorArcmin": 5.7,
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   "distanceLy": 23000,
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  },
  {
   "id": "NGC 40",
   "messier": null,
   "designation": "NGC 40",
   "names": [
    "Bow-Tie Nebula"
   ],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 3.25429,
   "decDeg": 72.52194,
   "constellation": "Cep",
   "vmag": 11.89,
   "majorArcmin": 0.8,
   "minorArcmin": 0.8,
   "angleDeg": null,
   "distanceLy": 6470,
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  },
  {
   "id": "IC 418",
   "messier": null,
   "designation": "IC 418",
   "names": [
    "Spirograph Nebula"
   ],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 81.86746,
   "decDeg": -12.69728,
   "constellation": "Lep",
   "vmag": 9.44,
   "majorArcmin": 0.2,
   "minorArcmin": 0.2,
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  {
   "id": "NGC 1535",
   "messier": null,
   "designation": "NGC 1535",
   "names": [],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 63.56571,
   "decDeg": -12.73939,
   "constellation": "Eri",
   "vmag": 9.6,
   "majorArcmin": 0.85,
   "minorArcmin": 0.85,
   "angleDeg": null,
   "distanceLy": 3960,
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  },
  {
   "id": "NGC 2392",
   "messier": null,
   "designation": "NGC 2392",
   "names": [
    "Eskimo Nebula"
   ],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 112.29483,
   "decDeg": 20.91183,
   "constellation": "Gem",
   "vmag": 9.61,
   "majorArcmin": 0.86,
   "minorArcmin": 0.86,
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  },
  {
   "id": "NGC 3242",
   "messier": null,
   "designation": "NGC 3242",
   "names": [
    "Jupiter's Ghost Nebula"
   ],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 156.192,
   "decDeg": -18.64222,
   "constellation": "Hya",
   "vmag": 7.7,
   "majorArcmin": 0.42,
   "minorArcmin": 0.42,
   "angleDeg": null,
   "distanceLy": 3570,
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  },
  {
   "id": "NGC 6210",
   "messier": null,
   "designation": "NGC 6210",
   "names": [],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 251.123,
   "decDeg": 23.79983,
   "constellation": "Her",
   "vmag": 9.65,
   "majorArcmin": 0.5,
   "minorArcmin": 0.5,
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  },
  {
   "id": "NGC 6543",
   "messier": null,
   "designation": "NGC 6543",
   "names": [
    "Cat's Eye Nebula"
   ],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 269.63912,
   "decDeg": 66.63319,
   "constellation": "Dra",
   "vmag": 9.01,
   "majorArcmin": 0.9,
   "minorArcmin": 0.9,
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  },
  {
   "id": "NGC 6826",
   "messier": null,
   "designation": "NGC 6826",
   "names": [
    "Blinking Planetary"
   ],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 296.20046,
   "decDeg": 50.52503,
   "constellation": "Cyg",
   "vmag": 9.44,
   "majorArcmin": 0.42,
   "minorArcmin": 0.42,
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  },
  {
   "id": "NGC 7009",
   "messier": null,
   "designation": "NGC 7009",
   "names": [
    "Saturn Nebula"
   ],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 316.04496,
   "decDeg": -11.36325,
   "constellation": "Aqr",
   "vmag": 8.0,
   "majorArcmin": 0.7,
   "minorArcmin": 0.52,
   "angleDeg": 70.0,
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  },
  {
   "id": "NGC 7027",
   "messier": null,
   "designation": "NGC 7027",
   "names": [],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 316.75637,
   "decDeg": 42.23653,
   "constellation": "Cyg",
   "vmag": 8.5,
   "majorArcmin": 0.23,
   "minorArcmin": 0.23,
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   "distanceLy": 3000,
   "note": null
  },
  {
   "id": "NGC 7293",
   "messier": null,
   "designation": "NGC 7293",
   "names": [
    "Helix Nebula"
   ],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 337.41071,
   "decDeg": -20.83733,
   "constellation": "Aqr",
   "vmag": 7.3,
   "majorArcmin": 16.33,
   "minorArcmin": 16.33,
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  },
  {
   "id": "NGC 7662",
   "messier": null,
   "designation": "NGC 7662",
   "names": [
    "Copeland's Blue Snowball"
   ],
   "type": "planetary nebula",
   "morphology": null,
   "raDeg": 351.47458,
   "decDeg": 42.53494,
   "constellation": "And",
   "vmag": 8.3,
   "majorArcmin": 0.28,
   "minorArcmin": 0.28,
   "angleDeg": null,
   "distanceLy": 6400,
   "note": null
  },
  {
   "id": "IC 405",
   "messier": null,
   "designation": "IC 405",
   "names": [
    "Flaming Star Nebula"
   ],
   "type": "nebula",
   "morphology": null,
   "raDeg": 79.12283,
   "decDeg": 34.35617,
   "constellation": "Aur",
   "vmag": null,
   "majorArcmin": 50.0,
   "minorArcmin": 30.0,
   "angleDeg": null,
   "distanceLy": null,
   "note": null
  },
  {
   "id": "IC 5146",
   "messier": null,
   "designation": "IC 5146",
   "names": [
    "Cocoon Nebula"
   ],
   "type": "star cluster and nebula",
   "morphology": null,
   "raDeg": 328.36983,
   "decDeg": 47.26692,
   "constellation": "Cyg",
   "vmag": null,
   "majorArcmin": 10.0,
   "minorArcmin": 10.0,
   "angleDeg": null,
   "distanceLy": 2780,
   "note": null
  },
  {
   "id": "NGC 2238",
   "messier": null,
   "designation": "NGC 2238",
   "names": [
    "Rosette Nebula"
   ],
   "type": "emission nebula",
   "morphology": null,
   "raDeg": 97.66821,
   "decDeg": 5.01306,
   "constellation": "Mon",
   "vmag": null,
   "majorArcmin": 80.0,
   "minorArcmin": 60.0,
   "angleDeg": null,
   "distanceLy": null,
   "note": null
  },
  {
   "id": "NGC 3372",
   "messier": null,
   "designation": "NGC 3372",
   "names": [
    "Carina Nebula",
    "eta Car Nebula"
   ],
   "type": "emission nebula",
   "morphology": null,
   "raDeg": 161.28554,
   "decDeg": -59.86669,
   "constellation": "Car",
   "vmag": null,
   "majorArcmin": 120.0,
   "minorArcmin": 120.0,
   "angleDeg": null,
   "distanceLy": null,
   "note": null
  },
  {
   "id": "NGC 6888",
   "messier": null,
   "designation": "NGC 6888",
   "names": [
    "Crescent Nebula"
   ],
   "type": "emission nebula",
   "morphology": null,
   "raDeg": 303.02729,
   "decDeg": 38.35494,
   "constellation": "Cyg",
   "vmag": null,
   "majorArcmin": 20.0,
   "minorArcmin": 10.0,
   "angleDeg": null,
   "distanceLy": null,
   "note": null
  },
  {
   "id": "NGC 7000",
   "messier": null,
   "designation": "NGC 7000",
   "names": [
    "North America Nebula"
   ],
   "type": "emission nebula",
   "morphology": null,
   "raDeg": 314.82142,
   "decDeg": 44.52878,
   "constellation": "Cyg",
   "vmag": null,
   "majorArcmin": 120.0,
   "minorArcmin": 30.0,
   "angleDeg": null,
   "distanceLy": 1900,
   "note": null
  },
  {
   "id": "NGC 7635",
   "messier": null,
   "designation": "NGC 7635",
   "names": [
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 ]
}