"estel nan" meaning in Catalan

{
  "etymology_templates": [
    {
      "args": {
        "1": "ca",
        "2": "en",
        "3": "dwarf star"
      },
      "expansion": "Calque of English dwarf star",
      "name": "calque"
    }
  ],
  "etymology_text": "Calque of English dwarf star.",
  "forms": [
    {
      "form": "estels nans",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "estel nan m (plural estels nans)",
      "name": "ca-noun"
    }
  ],
  "lang": "Catalan",
  "lang_code": "ca",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Catalan entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ca",
          "name": "Stars",
          "orig": "ca:Stars",
          "parents": [
            "Celestial bodies",
            "Space",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "dwarf star"
      ],
      "id": "en-estel_nan-ca-noun-mwt5RPuA",
      "links": [
        [
          "dwarf star",
          "dwarf star"
        ]
      ],
      "synonyms": [
        {
          "word": "estrella nana"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "estel nan"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ca",
        "2": "en",
        "3": "dwarf star"
      },
      "expansion": "Calque of English dwarf star",
      "name": "calque"
    }
  ],
  "etymology_text": "Calque of English dwarf star.",
  "forms": [
    {
      "form": "estels nans",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "estel nan m (plural estels nans)",
      "name": "ca-noun"
    }
  ],
  "lang": "Catalan",
  "lang_code": "ca",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Catalan countable nouns",
        "Catalan entries with incorrect language header",
        "Catalan lemmas",
        "Catalan masculine nouns",
        "Catalan multiword terms",
        "Catalan nouns",
        "Catalan nouns with red links in their headword lines",
        "Catalan terms calqued from English",
        "Catalan terms derived from English",
        "ca:Stars"
      ],
      "glosses": [
        "dwarf star"
      ],
      "links": [
        [
          "dwarf star",
          "dwarf star"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "estrella nana"
    }
  ],
  "word": "estel nan"
}