{
  "annotation_id": "c6aea710-3fc1-4917-a424-78c00fa8287a",
  "date_created": "2026-03-02T18:00:39.426000Z",
  "date_modified": "2026-03-02T18:00:39.426000Z",
  "file_hash": "96d5f0eb55853b16f82050605eed7faea3a6e70d6fa0ae22ee91033b7bde1c88",
  "private": false,
  "record": {
    "abstract": "Atmospheric refraction is responsible for the bending of light-rays in the\natmosphere. It is a result of the continuous decrease in the refractive index\nof the air as a function of altitude. A well-known consequence of this\nphenomenon is the apparently elliptic shape of the setting or rising Sun (or\nfull-Moon). In the present paper we systematically investigate this phenomenon\nin a standard atmosphere. Theoretical and numerical calculations are compared\nwith experimental data. The asymmetric rim of the Sun is computed as a function\nof its inclination angle, observational height and meteorological conditions\ncharacterized by pressure, temperature and lapse-rate. We reveal and illustrate\nsome extreme and highly unusual situations.",
    "arxiv_id": "physics/0204060",
    "authors": [
      "Z. Neda",
      "S. Volkan"
    ],
    "categories": [
      "physics.pop-ph",
      "physics.ed-ph"
    ],
    "doi": "10.1119/1.1533054",
    "title": "Flatness of the setting Sun",
    "url": "https://arxiv.org/abs/physics/0204060"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9c54355c-f95e-403e-970d-0397a3e3affa",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}