"Pickering series" meaning in All languages combined

{
  "etymology_text": "Named after Edward Charles Pickering.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Pickering series",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Three lines of singly ionized helium found, usually in absorption, in the spectra of hot stars, produced by transitions of an electron with principal quantum number n=4 state from a higher energy level."
      ],
      "id": "en-Pickering_series-en-name-ZyWWJrVH",
      "links": [
        [
          "ionize",
          "ionize"
        ],
        [
          "helium",
          "helium"
        ],
        [
          "absorption",
          "absorption"
        ],
        [
          "spectra",
          "spectrum"
        ],
        [
          "transition",
          "transition"
        ],
        [
          "electron",
          "electron"
        ],
        [
          "principal quantum number",
          "principal quantum number"
        ],
        [
          "energy level",
          "energy level"
        ]
      ],
      "wikipedia": [
        "Edward Charles Pickering",
        "Pickering series"
      ]
    }
  ],
  "word": "Pickering series"
}

{
  "etymology_text": "Named after Edward Charles Pickering.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Pickering series",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Three lines of singly ionized helium found, usually in absorption, in the spectra of hot stars, produced by transitions of an electron with principal quantum number n=4 state from a higher energy level."
      ],
      "links": [
        [
          "ionize",
          "ionize"
        ],
        [
          "helium",
          "helium"
        ],
        [
          "absorption",
          "absorption"
        ],
        [
          "spectra",
          "spectrum"
        ],
        [
          "transition",
          "transition"
        ],
        [
          "electron",
          "electron"
        ],
        [
          "principal quantum number",
          "principal quantum number"
        ],
        [
          "energy level",
          "energy level"
        ]
      ],
      "wikipedia": [
        "Edward Charles Pickering",
        "Pickering series"
      ]
    }
  ],
  "word": "Pickering series"
}