{
  "schema_version": 1,
  "id": "51",
  "type": "star",
  "name": "Phecda",
  "summary": "bright star in Ursa Major used as a fixed-sky reference",
  "representation": {
    "machine": "./51.json",
    "human_source": "summary",
    "human": "/stories/baseline/51.html"
  },
  "constellation_abbreviation": "UMa",
  "constellation": "Ursa Major",
  "position": {
    "ra_deg": 178.45752,
    "dec_deg": 53.69476,
    "ecliptic_longitude_deg": 150.47685,
    "ecliptic_latitude_deg": 47.141465
  },
  "representative_visual_magnitude": 2.41,
  "guiding_asterisms": [
    {
      "id": "1362",
      "geometry_key": "asterism-big-dipper",
      "name": "Big Dipper",
      "relationship": "visual-member",
      "provenance": {
        "source": "Astronomical League",
        "source_url": "https://www.astroleague.org/wp-content/uploads/2025/12/Asterism_List_20251223.pdf",
        "source_role": "verification",
        "supports": "visual-membership"
      }
    }
  ]
}