> For the complete documentation index, see [llms.txt](https://docs.radiantdrift.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.radiantdrift.com/solar-eclipses/five-millennium-canon-of-solar-eclipses.md). # Five Millennium Canon of Solar Eclipses Key data from NASA's solar eclipse catalog queryable as JSON NASA's Five Millennium Canon of Solar Eclipses provides details of all solar eclipses occurring over the period -1999 to +3000 (2000 BCE to 3000 CE). This public domain data is available at [5MCSE](https://eclipse.gsfc.nasa.gov/SEpubs/5MCSE.html). An extract of this data - specifically the summary data for each solar eclipse - is available via a web service. Acknowledgement: {% hint style="info" %} * Eclipse Predictions by Fred Espenak, NASA's GSFC, [NASA/Goddard Space Flight Center](https://support.photoephemeris.com/hc/en-us/articles/eclipse.gsfc.nasa.gov) {% endhint %} ### Request format Request eclipses between a start and end year as follows: {% tabs %} {% tab title="JavaScript" %} {% code overflow="wrap" lineNumbers="true" %} ```javascript axios({ "method": "GET", "url": "https://api.radiantdrift.com/solar-eclipse/catalog/[YEAR_FROM]/[YEAR_TO]", "params": { "apiKey": [YOUR_API_KEY], ["saros": [SAROS_CYCLE],] ["primaryType": [ECLIPSE_TYPE]] }, "headers": { "Accept-Encoding": "deflate, gzip, br", "Cache-Control": "max-age=86400" } }) ``` {% endcode %} {% endtab %} {% tab title="cURL" %} {% code overflow="wrap" lineNumbers="true" %} ```bash curl "https://api.radiantdrift.com/solar-eclipse/catalog/1000/2500?apiKey=[YOUR_API_KEY][&saros=[SAROS_CYCLE]][&primaryType=[ECLIPSE_TYPE]]" \ -H 'Accept-Encoding: deflate, gzip, br' \ -H 'Cache-Control: max-age=86400' ``` {% endcode %} {% endtab %} {% endtabs %} You can optionally specify a [Saros cycle](https://eclipse.gsfc.nasa.gov/SEsaros/SEsaroscat.html) number and/or an eclipse type, where valid eclipse types are: * `P` Partial Eclipse * `A` Annular Eclipse * `T` Total Eclipse * `H` Hybrid or Annular/Total Eclipse ### Example The following request returns the Hybrid eclipses in Saros cycle 137 between the years 1000 and 2500: {% code overflow="wrap" %} ``` GET https://api.radiantdrift.com/solar-eclipse/catalog/1000/2500?saros=137&primaryType=H ``` {% endcode %} The expected response is as follows (abbreviated for length): {% code overflow="wrap" lineNumbers="true" %} ```json { "query": { "name": "solar-eclipse/catalog/1000/2500", "yearFrom": 1000, "yearTo": 2500, "credit": "Eclipse Predictions by Fred Espenak, NASA's GSFC", "eclipseType": "H", "saros": "137" }, "response": [ { "catalog": 8821, "year": 1713, "month": "Dec", "day": 17, "greatestTD": 0.669675926, "deltaT": 9, "lunation": -3538, "saros": 137, "eclipseType": "H", "qle": "p-", "gamma": 0.7249, "mag": 1.0094, "sLat": "23N", "sLng": "65W", "sunAlt": 43, "pathWidthKM": "47", "sCentralDuration": "00m56s", "lat": 23, "lng": -65, "centraDurationSec": 56, "isoDate": "1713-12-17T00:00:00Z", "eclipseTypeQualifier": null, "eclipseTypePrimary": "H", "countryISO": null, "mrgID": 1912, "tzID": "Etc/GMT+4" }, { "catalog": 8867, "year": 1731, "month": "Dec", "day": 29, "greatestTD": 0.03255787, "deltaT": 11, "lunation": -3315, "saros": 137, "eclipseType": "H", ... ] } ``` {% endcode %} In this case, the array included in the `response` property conforms to the following Typescript type: {% code overflow="wrap" lineNumbers="true" %} ```typescript export type FiveMCSERecord = { catalog: number; year: number; month: string; day: number; greatestTD: number; deltaT: number; lunation: number; saros: number; eclipseType: string; qle: string; gamma: number; mag: number; sLat: string; sLng: string; sunAlt: number; pathWidthKM: string | null; sCentralDuration: string | null; lat: number; lng: number; centraDurationSec: number; isoDate: string; eclipseTypeQualifier: string | null; eclipseTypePrimary: string; countryISO: string | null; mrgID: number | null; tzID: string; } ``` {% endcode %} ### Fields Except as noted below, the fields returned in the response correspond directly to the source NASA data, except that field names are camel-cased. Please refer to the [Key to Catalog of Solar Eclipses](https://eclipse.gsfc.nasa.gov/SEcat5/SEcatkey.html) for details. | Field | Type | Comments | | ---------------------- | -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `sLat` | string | NASA's `Lat.` field in text form | | `sLng` | string | NASA's `Long.` field in text form | | `sCentralDuration` | string | NASA's `Central Dur.` field in text form | | `lat` | number | Latitude of greatest eclipse in degrees, positive north, to nearest whole degree | | `lng` | number | Longitude of greatest eclipse in degrees, positive east, to nearest whole degree | | `centraDurationSec` | number | Duration of totality or annularity at location of greatest eclipse, in seconds | | `isoDate` | string | Midnight of date of eclipse in ISO Date format. Gregorian Calendar is used for dates after 1582 Oct 15. Julian Calendar is used for dates before 1582 Oct 04. | | `eclipseTypeQualifier` | string \| null | The second character of NASA's `Ecl. Type` field. | | `eclipseTypePrimary` | string | The first character of NASA's `Ecl. Type` field. These are broken out separately for indexing and data querying efficiency reasons. | | `countryISO` | string \| null | 2-letter ISO country code corresponding the modern day country at the lat/lng of the point of greatest eclipse. Null if point does not lie within a country. | | `mrgID` | number \| null |

Marine Resources numeric ID corresponding to the sea or ocean at the lat/lng of the point of greatest eclipse. Null if the point lies over land.

This field and the countryISO field are useful for general characterization of the location of greatest eclipse in user interfaces.

| | `tzID` | string | The modern Time Zone ID corresponding to the point of greatest eclipse. |