Exoplanet Data: NASA Confirmed Planets, Size, Orbit & Distance

Query the NASA Exoplanet Archive for confirmed planets. Filter by name, discovery method and discovery year. Returns planet, host star, discovery year and method, orbital period, radius and mass (Earth units), star distance and archive link. Free public data, no API key.

What does Exoplanet Data do?

Confirmed exoplanets from the NASA Exoplanet Archive: discovery year and method, radius, mass, orbit and distance.

What can you use it for?

• Build astronomy dashboards and educational content.
• Analyse discovery trends by method and year.
• Find nearby or Earth-sized planets.
• Enrich science datasets.

Why use this Actor?

• Fast and cheap: lightweight HTTP-based Actor with no browser, so runs finish in seconds and cost very little.
• No API keys or accounts needed for the data source (see notes below).
• Clean, structured JSON that you can export as CSV, Excel, JSON or XML, or pull through the Apify API and integrations.
• Scheduling, webhooks and integrations: run it daily and send results to Google Sheets, Slack, Zapier, Make, n8n or your own API.

Input

Configure the run in the Input tab (all fields have sensible defaults).

Field	Type	Required	Default	Description
query	string	no	-	Text in the planet or host-star name, e.g. kepler, trappist, proxima.
discoveryMethod	string	no	-	e.g. transit, radial velocity, imaging, microlensing.
minDiscoveryYear	integer	no	-	Only planets discovered in or after this year.
maxResults	integer	no	50	Maximum number of results.

Example input

{
  "query": "kepler",
  "maxResults": 50
}

Output

Results are stored in the default dataset. Download them from the Output tab or via the API.

Example result

{
  "planet": "Kepler-139 d",
  "hostStar": "Kepler-139",
  "discoveryYear": 2023,
  "discoveryMethod": "Transit",
  "discoveryFacility": "Kepler",
  "orbitalPeriodDays": 7.305699922,
  "radiusEarth": 1.695,
  "massEarth": 4.65807623,
  "distanceParsec": 391.038,
  "planetsInSystem": 5,
  "url": "https://exoplanetarchive.ipac.caltech.edu/overview/Kepler-139",
  "scrapedAt": "2026-09-27T05:46:18.545Z"
}

Output fields

Field	Type	Example
planet	string	"Kepler-139 d"
hostStar	string	"Kepler-139"
discoveryYear	number	2023
discoveryMethod	string	"Transit"
discoveryFacility	string	"Kepler"
orbitalPeriodDays	number	7.305699922
radiusEarth	number	1.695
massEarth	number	4.65807623
distanceParsec	number	391.038
planetsInSystem	number	5
url	string	"https://exoplanetarchive.ipac.caltech.edu/overview/Keple...
scrapedAt	string	"2026-09-27T05:46:18.545Z"

How much does it cost?

The Actor is billed by Apify according to the pricing shown on the Pricing tab of this page. Runs are small and fast, and the Apify Free plan includes monthly platform credits so you can try it at no cost. You can set a maximum cost per run, and the Actor stops cleanly when that limit is reached.

Notes and limitations

• Uses the default (best-published) parameter set for each planet.

Tips

• Start with a small test run, then scale up the input.
• Use Schedules to automate recurring runs and Webhooks or Integrations to deliver the data where you need it.
• Call the Actor from your code with the Apify API or the official JavaScript and Python clients.

FAQ

What units are used?

Radius and mass are in Earth units, distance in parsecs, period in days.

Feedback

Found a bug or need an extra field? Open an issue from the Issues tab of this Actor and it will be looked at quickly.

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