[
  {
    "object_name" : "Alpha Centauri A",
    "visual_magnitude" : "-0.27",
    "visual_luminosity" : "1.519*sun",
    "object_type": "star",
    "mass" : "1.1*sun",
    "distance": "4.37 lightyears, 1.34pc",
    "_synonyms": [
      {
       "category" :"object name",
       "fact" : "Alpha Centauri A",
        "synonyms" : ["Rigil Kentaurus"]
      }
    ]
  },
  {
    "object_name" : "Alpha Centauri B",
    "visual_luminosity" : "0.445*sun",
    "mass" : ".907*sun",
    "visual_magnitude" : "n/a",
    "distance": "4.37 lightyears, 1.34pc"
  },
  {
    "object_name" : "Alpha Centauri C",
    "visual_luminosity" : "-0.27",
    "mass" : "n/a",
    "visual_magnitude" : "n/a",
    "orbits" : "n/a",
    "object_type" : "star, red dwarf",
    "distance" : "4.24 lightyears, 1.30pc",
    "_synonyms": [
      {
        "category": "object name",
        "fact" : "Alpha Centauri B",
        "synonyms" : [
          "Proxima Centauri"
        ]
      }
    ]
  },
  {
    "object_name" : "Proxima Centauri b",
    "visual_luminosity" : "n/a",
    "mass" : "0.134*sun, 1.27*earth",
    "radius" : "0.141*sun, 1.1+/-0.3*earth",
    "visual_magnitude" : "n/a",
    "object_type" : "planet",
    "orbits" : "Alpha Centauri C",
    "distance" : "4.2 lightyears, 1.30pc",
    "_url": "https://en.wikipedia.org/wiki/Proxima_Centauri_b",
    "_synonyms": [
      {
        "category": "object name",
        "fact" : "Proxima Centauri b",
        "synonyms" : [
        "Proxima b"
      ]}
    ]
  },
  {
    "object_name" : "Mars",
    "visual_luminosity" : "n/a",
    "orbit_radius" : "1.66AU-1.523679AU",
    "eccentricity" : "0.0934",
    "orbital_period" : "1.880years, 668 sols",
    "mass" : "0.107*earth",
    "radius" : "0.53*earth, 3.390 km",
    "visual_magnitude" : "+1.6 to -3.0",
    "object_type" : "planet",
    "orbits" : "Sun",
    "distance" : "n/a",
    "_url" : "https://en.wikipedia.org/wiki/Mars"
  },
  {
    "object_name" : "earth",
    "visual_luminosity" : "n/a",
    "orbit_radius" : "1.016 - 0.983 AU, 152,100,000km - 14,.095,000km",
    "eccentricity" : "0.0167",
    "orbital_period" : "1years, 365.256363004 d 668 sols",
    "mass" : "1*earth, 5.2*10^24kg",
    "radius" : "1*earth, 6371km",
    "visual_magnitude" : "n/a",
    "albedo" : "0.367",
    "object_type" : "planet",
    "orbits" : "Sun",
    "distance" : "0",
    "_url" : "https://en.wikipedia.org/wiki/Earth",
    "_synonyms" : [
      { "category" : "object name",
        "fact" : "earth",
        "synonyms" : [ "blue planet" , "gaia"]
      },
      { "category" : "orbits",
        "fact" : "Sun",
        "synonyms" : [ "Sol"]
      }
    ]
  },
  {
    "object_name" : "Sun",
    "visual_luminosity" : "n/a",
    "orbit_radius" : "1.016 - 0.983 AU, 152,100,000km - 14,.095,000km",
    "mass" : "333,000*earth, 1.989×10^30 kg",
    "radius" : "109*earth, 695700km",
    "visual_magnitude" : "-27",
    "object_type" : "star",
    "distance" : "1au; 1.496x10^8 km, 8min 19s at light speed",
    "_url" : "https://en.wikipedia.org/wiki/Sun"
  }
]