{
  "endpoint": "/v2/today",
  "computed_at": "2026-08-01T00:00:00.000Z",
  "query": {
    "at": "2026-07-28T21:00:00.000Z",
    "mode": "instant",
    "resolved_from": "at",
    "is_now": false,
    "latitude": 51.4778,
    "longitude": -0.0015,
    "elevation_m": 0,
    "tz": "Europe/London",
    "utc_offset_seconds": 3600,
    "utc_offset_iso": "+01:00",
    "is_dst": true,
    "timezone_source": "parameter",
    "day_anchor": "civil",
    "time_format": "iso",
    "format": "json",
    "shape": "nested",
    "precision": 6,
    "pretty": 1,
    "verbosity": "full",
    "include": [
      "sun",
      "moon",
      "planets",
      "events",
      "night"
    ],
    "ignored": []
  },
  "data": {
    "local_date": "2026-07-28",
    "sun": {
      "rise_set": {
        "status": "normal",
        "status_label": "Rises and sets",
        "special": null,
        "events": [
          {
            "kind": "lower_transit",
            "instant": "2026-07-28T01:06:33.121+01:00",
            "azimuth_deg": 359.999874,
            "altitude_deg": -18.989536
          },
          {
            "kind": "rise",
            "instant": "2026-07-28T05:17:50.647+01:00",
            "azimuth_deg": 57.279351,
            "altitude_deg": -0.833325
          },
          {
            "kind": "upper_transit",
            "instant": "2026-07-28T13:06:32.489+01:00",
            "azimuth_deg": 179.999991,
            "altitude_deg": 57.438623
          },
          {
            "kind": "set",
            "instant": "2026-07-28T20:54:16.609+01:00",
            "azimuth_deg": 302.447462,
            "altitude_deg": -0.833301
          }
        ],
        "rise": [
          "2026-07-28T05:17:50.647+01:00"
        ],
        "set": [
          "2026-07-28T20:54:16.609+01:00"
        ],
        "transit": [
          "2026-07-28T13:06:32.489+01:00"
        ],
        "above_horizon_minutes": 936.4
      },
      "day_length": "15h 36m",
      "day_length_minutes": 936.4,
      "civil_dusk": "2026-07-28T21:35:35.050+01:00",
      "astronomical_dusk": "2026-07-28T23:55:02.016+01:00",
      "is_up": false,
      "altitude_refracted_deg": -8.179033,
      "azimuth_deg": 315.874181
    },
    "moon": {
      "phase": {
        "name": "Full Moon",
        "code": "full_moon",
        "emoji": "🌕",
        "illumination_percent": 99.4,
        "waxing": true,
        "age_days": 14.47
      },
      "constellation": {
        "name": "Sagittarius",
        "abbreviation": "Sgr"
      },
      "rise_set": {
        "status": "normal",
        "status_label": "Rises and sets",
        "events": [
          {
            "kind": "set",
            "instant": "2026-07-28T03:29:09.202+01:00",
            "azimuth_deg": 225.853012,
            "altitude_deg": -0.813717
          },
          {
            "kind": "lower_transit",
            "instant": "2026-07-28T12:15:44.746+01:00",
            "azimuth_deg": 359.999941,
            "altitude_deg": -63.380034
          },
          {
            "kind": "rise",
            "instant": "2026-07-28T20:46:05.756+01:00",
            "azimuth_deg": 130.062322,
            "altitude_deg": -0.814653
          }
        ],
        "rise": [
          "2026-07-28T20:46:05.756+01:00"
        ],
        "set": [
          "2026-07-28T03:29:09.202+01:00"
        ],
        "transit": [],
        "above_horizon_minutes": 403.1
      },
      "is_up": true,
      "altitude_refracted_deg": 7.008975,
      "azimuth_deg": 144.576649,
      "next_full_moon": "2026-07-29T15:36:19.011+01:00",
      "next_new_moon": "2026-08-12T18:37:11.343+01:00"
    },
    "planets_up": [
      {
        "name": "Venus",
        "code": "venus",
        "constellation": {
          "name": "Leo",
          "abbreviation": "Leo"
        },
        "magnitude": -4.29,
        "altitude_refracted_deg": 3.308573,
        "azimuth_deg": 272.336423,
        "elongation_from_sun_deg": 44.992303,
        "visibility": "Evening sky, after dusk",
        "visibility_code": "evening_sky",
        "naked_eye": true
      },
      {
        "name": "Pluto",
        "code": "pluto",
        "constellation": {
          "name": "Capricornus",
          "abbreviation": "Cap"
        },
        "magnitude": 14.45,
        "altitude_refracted_deg": 5.107099,
        "azimuth_deg": 138.356412,
        "elongation_from_sun_deg": 175.452394,
        "visibility": "Up most of the night",
        "visibility_code": "most_of_night",
        "naked_eye": false
      }
    ],
    "planets_down": [
      "Mercury",
      "Mars",
      "Jupiter",
      "Saturn",
      "Uranus",
      "Neptune"
    ],
    "night": {
      "dark_start": "2026-07-28T23:55:02.016+01:00",
      "dark_end": "2026-07-29T02:18:30.220+01:00",
      "dark_minutes": 143.5,
      "moonless_dark_minutes": 0,
      "verdict": "Bright. The Moon is up through the whole dark window."
    },
    "next_events": [
      {
        "kind": "full_moon",
        "label": "Full Moon",
        "instant": "2026-07-29T15:36:19.011+01:00",
        "days_until": 0.73,
        "scope": "global",
        "href": "https://www.cyclecalcs.com/full-moon-calendar.html"
      },
      {
        "kind": "new_moon",
        "label": "New Moon",
        "instant": "2026-08-12T18:37:11.343+01:00",
        "days_until": 14.86,
        "scope": "global",
        "href": "https://www.cyclecalcs.com/moon-phase-calendar.html"
      },
      {
        "kind": "solar_eclipse",
        "label": "Total solar eclipse somewhere on Earth",
        "instant": "2026-08-12T18:45:46.794+01:00",
        "days_until": 14.9,
        "scope": "global",
        "href": "https://www.cyclecalcs.com/eclipses/",
        "global_kind": "total"
      },
      {
        "kind": "lunar_eclipse",
        "label": "Partial lunar eclipse",
        "instant": "2026-08-28T05:12:49.076+01:00",
        "days_until": 30.3,
        "scope": "global",
        "href": "https://www.cyclecalcs.com/eclipses/",
        "global_kind": "partial"
      }
    ],
    "summary": "The Moon is full, 99 percent lit. Venus and Pluto are up. The Sun sets at 20:54 and full dark begins at 23:55 local time."
  },
  "warnings": [],
  "links": {
    "self": "https://www.cyclecalcs.com/v2/today?at=2026-07-28T21%3A00%3A00Z&lat=51.4778&lon=-0.0015&tz=Europe%2FLondon",
    "docs": "https://www.cyclecalcs.com/api/reference.html#today",
    "spec": "https://www.cyclecalcs.com/v2/openapi.json",
    "page": "https://www.cyclecalcs.com/today.html"
  },
  "meta": {
    "api_version": "2",
    "contract_version": "2.0.0",
    "engine": {
      "name": "Astronomy Engine",
      "license": "MIT",
      "author": "Don Cross",
      "version": "2.1.19",
      "version_source": "upstream_sha256_match",
      "sha256": "068f1445ed0c636c94818fe6d20d7d125120e605e0bab9fc4675c3d531be5ad7",
      "vendored": true,
      "credit": "astronomy-engine (MIT, Copyright (c) 2019-2023 Don Cross)"
    },
    "tzdb": "2026b",
    "rights": "unrestricted",
    "attribution": {
      "required": false,
      "text": "Computed by CycleCalcs (cyclecalcs.com) with the MIT-licensed Astronomy Engine. Positional astronomy only.",
      "sources": []
    },
    "notice_url": "https://www.cyclecalcs.com/methodology.html#data-sources",
    "cache": {
      "class": "fixed_instant",
      "deterministic": true
    },
    "accuracy": {
      "statement": "Positions are arcminute class for the Sun, Moon and planets across 1700 to 2200, degrading toward the ends of that window.",
      "residuals_url": "https://www.cyclecalcs.com/api/accuracy.html"
    },
    "time": {
      "scale_of_input": "UTC",
      "ut1_source": "assumed equal to UTC; no IERS bulletin is loaded, so UT1 minus UTC may differ by up to 0.9 s",
      "delta_t_seconds": 75.4,
      "delta_t_model": "Espenak and Meeus"
    },
    "horizon": {
      "sunrise_sunset_altitude_deg": -0.8333,
      "sunrise_sunset_definition": "centre of the Sun 50 arcminutes below the true horizon, being about 16 arcminutes of solar semidiameter plus about 34 arcminutes of horizon refraction",
      "civil_twilight_altitude_deg": -6,
      "astronomical_twilight_altitude_deg": -18,
      "moon_rise_set_definition": "upper limb at the horizon, with topocentric parallax and refraction applied by the engine's own rise and set search",
      "horizon_dip_modelled": false
    },
    "refraction": {
      "model": "Saemundsson (Astronomy Engine normal mode)",
      "verified": true,
      "assumed_temperature_c": null,
      "assumed_pressure_mbar": null,
      "applied_below_horizon_down_to_deg": -1
    },
    "not_computed": [
      {
        "name": "next_events.meteor_peak",
        "reason": "Withheld until the meteor catalogue reduction clears its licence review."
      },
      {
        "name": "constellation.genitive",
        "reason": "Needs the reduced constellation index; the generator has not run yet."
      }
    ],
    "budget": {
      "engine_calls": 129
    }
  },
  "attribution": "Computed by CycleCalcs (cyclecalcs.com) with the MIT-licensed Astronomy Engine. Positional astronomy only.",
  "docs": "https://www.cyclecalcs.com/api/reference.html#today"
}