"great comet" meaning in English

{
  "forms": [
    {
      "form": "great comets",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "great comet (plural great comets)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
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          "parents": [],
          "source": "w"
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          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
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          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1999, Neil Bone, Observing Meteors, Comets, Supernovae and other Transient Phenomena, Springer Science & Business Media, →ISBN:",
          "text": "When the next great comet will appear no one can say. In the interim, however, there will be plenty of lesser objects to observe.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A period of cometary activity when the comet becomes exceptionally bright."
      ],
      "hyponyms": [
        {
          "english": "Comet McNaught passage of 2007; first great comet of 21st century",
          "word": "Great Comet of 2007"
        },
        {
          "alt": "Comet Hale–Bopp passage of 1997",
          "english": "last great comet of 20th century",
          "word": "Great Comet of 1997"
        },
        {
          "english": "Comet Hyakutake passage of 1996; first great comet in two decades",
          "word": "Great Comet of 1996"
        },
        {
          "english": "Comet West passage of 1976; brightest comet in half-a-century",
          "word": "Great Comet of 1976"
        },
        {
          "english": "Halley's Comet passage of 1910; second great comet of 1910",
          "word": "1910 Halley's Comet"
        }
      ],
      "id": "en-great_comet-en-noun-0ORPQrbm",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "comet",
          "comet"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A period of cometary activity when the comet becomes exceptionally bright."
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ],
      "wikipedia": [
        "en:great comet"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɒmɪt"
    }
  ],
  "word": "great comet"
}

{
  "forms": [
    {
      "form": "great comets",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "great comet (plural great comets)",
      "name": "en-noun"
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  ],
  "hyponyms": [
    {
      "english": "Comet McNaught passage of 2007; first great comet of 21st century",
      "word": "Great Comet of 2007"
    },
    {
      "alt": "Comet Hale–Bopp passage of 1997",
      "english": "last great comet of 20th century",
      "word": "Great Comet of 1997"
    },
    {
      "english": "Comet Hyakutake passage of 1996; first great comet in two decades",
      "word": "Great Comet of 1996"
    },
    {
      "english": "Comet West passage of 1976; brightest comet in half-a-century",
      "word": "Great Comet of 1976"
    },
    {
      "english": "Halley's Comet passage of 1910; second great comet of 1910",
      "word": "1910 Halley's Comet"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English entries with incorrect language header",
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        "English nouns",
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        "Rhymes:English/ɒmɪt",
        "Rhymes:English/ɒmɪt/3 syllables",
        "en:Astronomy"
      ],
      "examples": [
        {
          "ref": "1999, Neil Bone, Observing Meteors, Comets, Supernovae and other Transient Phenomena, Springer Science & Business Media, →ISBN:",
          "text": "When the next great comet will appear no one can say. In the interim, however, there will be plenty of lesser objects to observe.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A period of cometary activity when the comet becomes exceptionally bright."
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "comet",
          "comet"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A period of cometary activity when the comet becomes exceptionally bright."
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ],
      "wikipedia": [
        "en:great comet"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɒmɪt"
    }
  ],
  "word": "great comet"
}