--- type: "firecrawl-provider" description: "Confirmed exoplanets from the NASA Exoplanet Archive (NExScI at IPAC/Caltech), read live through its public TAP service from the Planetary Systems Composite Parameters table: one row per confirmed planet with the archive's best combined orbit, radius, mass, temperature and discovery values, plus its host star and system. Look up a planet by name, a host star's whole system, or search every confirmed planet by discovery method, facility, year, radius, mass, orbital period, equilibrium temperature and distance. The archive updates weekly; please acknowledge the NASA Exoplanet Archive when publishing results." use_when: "Confirmed exoplanets from the NASA Exoplanet Archive (NExScI at IPAC/Caltech), read live through its public TAP service from the Planetary Systems Composite Parameters table: one row per confirmed planet with the archive's best combined orbit, radius, mass, temperature and discovery values, plus its host star and system. Look up a planet by name, a host star's whole system, or search every confirmed planet by discovery method, facility, year, radius, mass, orbital period, equilibrium temperature and distance. The archive updates weekly; please acknowledge the NASA Exoplanet Archive when publishing results." categories: "Public records" capabilities: 3 credits_per_call: 5 --- # NASA Exoplanet Archive on Firecrawl Alexandria Confirmed exoplanets from the NASA Exoplanet Archive (NExScI at IPAC/Caltech), read live through its public TAP service from the Planetary Systems Composite Parameters table: one row per confirmed planet with the archive's best combined orbit, radius, mass, temperature and discovery values, plus its host star and system. Look up a planet by name, a host star's whole system, or search every confirmed planet by discovery method, facility, year, radius, mass, orbital period, equilibrium temperature and distance. The archive updates weekly; please acknowledge the NASA Exoplanet Archive when publishing results. - Categories: Public records - Category index: [Public records category](https://alexandria.firecrawl.dev/agents/categories/public-records) - Provider key: `exoplanetarchive-ipac-caltech-edu` - Access: Firecrawl credits - Cost: 5 credits per call ## More - [Human guide](https://www.firecrawl.dev/app/alexandria/exoplanetarchive-ipac-caltech-edu) - [OpenAPI spec](https://alexandria.firecrawl.dev/agents/providers/exoplanetarchive-ipac-caltech-edu/openapi.json) ## Capabilities - [Get planet](https://alexandria.firecrawl.dev/agents/providers/exoplanetarchive-ipac-caltech-edu/exoplanets/get_planet): One confirmed exoplanet by name from the archive's composite parameters: discovery (year, method, facility, publication month), orbital period, semi-major axis, eccentricity, radius and mass in Earth and Jupiter units with how the mass was obtained, equilibrium temperature, insolation, density, the archive's controversial flag, its host star (spectral type, temperature, radius, mass, metallicity, age) and system (star and planet counts, distance, V magnitude, coordinates). Source: TAP sync over pscomppars, one request. - [Get system](https://alexandria.firecrawl.dev/agents/providers/exoplanetarchive-ipac-caltech-edu/exoplanets/get_system): A host star and all its confirmed planets: the star (spectral type, temperature, radius, mass, metallicity, age), the system (star and planet counts, distance, V magnitude, coordinates) and every planet with the same fields get_planet returns, in name order. The archive picks stellar values per planet, so star shows the first planet's and star_parameters_vary says when they differ. Source: TAP sync over pscomppars, one request. - [Search planets](https://alexandria.firecrawl.dev/agents/providers/exoplanetarchive-ipac-caltech-edu/exoplanets/search_planets): Search all confirmed exoplanets (about 6,400) by discovery method, discovery facility, host star, discovery year, radius, mass, orbital period, equilibrium temperature and distance, sorted by newest or oldest discovery, nearest system, radius, orbital period or name. Returns up to 100 planets with the same fields get_planet returns for a planet, the total number of matches and whether the list was cut. With no filters it lists the most recently published discoveries. Source: TAP sync over pscomppars; one request, plus a count request when more planets match than the limit. ## 1. Choose this provider when Confirmed exoplanets from the NASA Exoplanet Archive (NExScI at IPAC/Caltech), read live through its public TAP service from the Planetary Systems Composite Parameters table: one row per confirmed planet with the archive's best combined orbit, radius, mass, temperature and discovery values, plus its host star and system. Look up a planet by name, a host star's whole system, or search every confirmed planet by discovery method, facility, year, radius, mass, orbital period, equilibrium temperature and distance. The archive updates weekly; please acknowledge the NASA Exoplanet Archive when publishing results. ## 2. Minimal request Call `POST https://api.firecrawl.dev/v2/scrape` with `{ alexandria: { provider, capability, options } }`. For a batch, send `{ alexandria: [...] }` with up to 10 calls. ```json { "provider": "exoplanetarchive-ipac-caltech-edu", "capability": "exoplanets/get_planet", "options": { "name": "trappist-1e" } } ``` ## 3. Add provider options Use only the options needed for the task: - `name` (string, required): Planet name as the archive lists it, e.g. 'Kepler-186 f', 'TRAPPIST-1 e', '51 Peg b'. Case and spaces are ignored ('trappist-1e' works). Letters, digits, spaces and -+.()/', only. Example: `` ## 4. Request through your preferred interface ### JavaScript ```javascript const result = await firecrawl.scrape({ alexandria: { provider: "exoplanetarchive-ipac-caltech-edu", capability: "exoplanets/get_planet", options: { name: "trappist-1e", }, }, }); ``` ### Python ```python result = firecrawl.scrape_alexandria({ "provider": "exoplanetarchive-ipac-caltech-edu", "capability": "exoplanets/get_planet", "options": { "name": "trappist-1e" } }) ``` ### cURL ```sh curl https://api.firecrawl.dev/v2/scrape \ -H "Authorization: Bearer $FIRECRAWL_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "alexandria": { "provider": "exoplanetarchive-ipac-caltech-edu", "capability": "exoplanets/get_planet", "options": { "name": "trappist-1e" } } }' ``` ### CLI ```sh firecrawl scrape 'exoplanetarchive-ipac-caltech-edu/exoplanets/get_planet' \ --options '{"name":"trappist-1e"}' ``` ### MCP Call the FCX MCP retrieve tool with this object: ```json { "provider": "exoplanetarchive-ipac-caltech-edu", "capability": "exoplanets/get_planet", "options": { "name": "trappist-1e" } } ``` Ask for only the returned fields needed by the task. ## 5. Full request shape ```json { "provider": "exoplanetarchive-ipac-caltech-edu", "capability": "exoplanets/get_planet", "options": { "name": "trappist-1e" } } ``` ## 6. Response data The response includes `success`, `provider`, `capability`, `creditsCost` and `data`. This example shows the provider payload in `data`: ```json { "observed_at_ms": 1794422700000, "planet": { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/TRAPPIST-1%20e", "controversial": false, "density_g_cm3": 4.901605, "discovery": { "facility": "Multiple Observatories", "method": "Transit", "publication_month": "2017-02", "year": 2017 }, "distance_pc": 12.42988881, "eccentricity": 0.0051, "equilibrium_temperature_k": 249.7, "host_name": "TRAPPIST-1", "insolation_earth": 0.646, "letter": "e", "mass_earth": 0.692, "mass_jupiter": 0.00217728, "mass_kind": "Mass", "name": "TRAPPIST-1 e", "orbital_period_days": 6.101013, "radius_earth": 0.92, "radius_jupiter": 0.08207704, "semi_major_axis_au": 0.02925 }, "source_url": "https://exoplanetarchive.ipac.caltech.edu/TAP/sync?query=select%20pl_name%2Chostname%2Cpl_letter%2Cdisc_year%2Cdiscoverymethod%2Cdisc_facility%2Cdisc_pubdate%2Cpl_orbper%2Cpl_orbsmax%2Cpl_orbeccen%2Cpl_rade%2Cpl_radj%2Cpl_bmasse%2Cpl_bmassj%2Cpl_bmassprov%2Cpl_eqt%2Cpl_insol%2Cpl_dens%2Cpl_controv_flag%2Cst_spectype%2Cst_teff%2Cst_rad%2Cst_mass%2Cst_met%2Cst_age%2Csy_snum%2Csy_pnum%2Csy_dist%2Csy_vmag%2Cra%2Cdec%20from%20pscomppars%20where%20replace%28lower%28pl_name%29%2C%27%20%27%2C%27%27%29%3D%27trappist-1e%27%20order%20by%20pl_name&format=json", "star": { "age_gyr": 7.6, "effective_temperature_k": 2566, "mass_solar": 0.0898, "metallicity_dex": 0.052, "name": "TRAPPIST-1", "radius_solar": 0.1192, "spectral_type": "M8.0 V" }, "system": { "dec_deg": -5.0434618, "distance_pc": 12.42988881, "planet_count": 7, "ra_deg": 346.6263919, "star_count": 1, "v_magnitude": 17.02 } } ``` ## API reference-derived contract The following capability contract is generated from the same normalized Alexandria API reference exposed in the API spec. ### Get planet - Capability: `exoplanets/get_planet` - Description: One confirmed exoplanet by name from the archive's composite parameters: discovery (year, method, facility, publication month), orbital period, semi-major axis, eccentricity, radius and mass in Earth and Jupiter units with how the mass was obtained, equilibrium temperature, insolation, density, the archive's controversial flag, its host star (spectral type, temperature, radius, mass, metallicity, age) and system (star and planet counts, distance, V magnitude, coordinates). Source: TAP sync over pscomppars, one request. - Instructions: You have a planet's name ('Kepler-186 f', 'Proxima Cen b', '51 Peg b') and need its physical or orbital facts. Use get_system for all planets of a star, and search_planets when you only know properties. - Cost: 5 credits per call - Capability file: [Get planet](https://alexandria.firecrawl.dev/agents/providers/exoplanetarchive-ipac-caltech-edu/exoplanets/get_planet) Accepted options: - `name` (string, required): Planet name as the archive lists it, e.g. 'Kepler-186 f', 'TRAPPIST-1 e', '51 Peg b'. Case and spaces are ignored ('trappist-1e' works). Letters, digits, spaces and -+.()/', only. Example: `` Response schema example: ```json { "observed_at_ms": 1794422700000, "planet": { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/TRAPPIST-1%20e", "controversial": false, "density_g_cm3": 4.901605, "discovery": { "facility": "Multiple Observatories", "method": "Transit", "publication_month": "2017-02", "year": 2017 }, "distance_pc": 12.42988881, "eccentricity": 0.0051, "equilibrium_temperature_k": 249.7, "host_name": "TRAPPIST-1", "insolation_earth": 0.646, "letter": "e", "mass_earth": 0.692, "mass_jupiter": 0.00217728, "mass_kind": "Mass", "name": "TRAPPIST-1 e", "orbital_period_days": 6.101013, "radius_earth": 0.92, "radius_jupiter": 0.08207704, "semi_major_axis_au": 0.02925 }, "source_url": "https://exoplanetarchive.ipac.caltech.edu/TAP/sync?query=select%20pl_name%2Chostname%2Cpl_letter%2Cdisc_year%2Cdiscoverymethod%2Cdisc_facility%2Cdisc_pubdate%2Cpl_orbper%2Cpl_orbsmax%2Cpl_orbeccen%2Cpl_rade%2Cpl_radj%2Cpl_bmasse%2Cpl_bmassj%2Cpl_bmassprov%2Cpl_eqt%2Cpl_insol%2Cpl_dens%2Cpl_controv_flag%2Cst_spectype%2Cst_teff%2Cst_rad%2Cst_mass%2Cst_met%2Cst_age%2Csy_snum%2Csy_pnum%2Csy_dist%2Csy_vmag%2Cra%2Cdec%20from%20pscomppars%20where%20replace%28lower%28pl_name%29%2C%27%20%27%2C%27%27%29%3D%27trappist-1e%27%20order%20by%20pl_name&format=json", "star": { "age_gyr": 7.6, "effective_temperature_k": 2566, "mass_solar": 0.0898, "metallicity_dex": 0.052, "name": "TRAPPIST-1", "radius_solar": 0.1192, "spectral_type": "M8.0 V" }, "system": { "dec_deg": -5.0434618, "distance_pc": 12.42988881, "planet_count": 7, "ra_deg": 346.6263919, "star_count": 1, "v_magnitude": 17.02 } } ``` ### Get system - Capability: `exoplanets/get_system` - Description: A host star and all its confirmed planets: the star (spectral type, temperature, radius, mass, metallicity, age), the system (star and planet counts, distance, V magnitude, coordinates) and every planet with the same fields get_planet returns, in name order. The archive picks stellar values per planet, so star shows the first planet's and star_parameters_vary says when they differ. Source: TAP sync over pscomppars, one request. - Instructions: A question about a whole planetary system ('the TRAPPIST-1 planets', 'how many planets does Kepler-90 have') or about the host star of a known planet. - Cost: 5 credits per call - Capability file: [Get system](https://alexandria.firecrawl.dev/agents/providers/exoplanetarchive-ipac-caltech-edu/exoplanets/get_system) Accepted options: - `host_name` (string, required): Host star name as the archive lists it, e.g. 'TRAPPIST-1', 'Kepler-90', 'HD 219134', '55 Cnc'. Case and spaces are ignored. Example: `` Response schema example: ```json { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/TRAPPIST-1", "host_name": "TRAPPIST-1", "observed_at_ms": 1794422700000, "planets": [ { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/TRAPPIST-1%20b", "controversial": false, "density_g_cm3": 5.441939, "discovery": { "facility": "La Silla Observatory", "method": "Transit", "publication_month": "2016-05", "year": 2016 }, "distance_pc": 12.42988881, "eccentricity": 0.00622, "equilibrium_temperature_k": 397.6, "host_name": "TRAPPIST-1", "insolation_earth": 4.153, "letter": "b", "mass_earth": 1.374, "mass_jupiter": 0.00432309, "mass_kind": "Mass", "name": "TRAPPIST-1 b", "orbital_period_days": 1.510826, "radius_earth": 1.116, "radius_jupiter": 0.09956302, "semi_major_axis_au": 0.01154 }, { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/TRAPPIST-1%20c", "controversial": false, "density_g_cm3": 5.463993, "discovery": { "facility": "La Silla Observatory", "method": "Transit", "publication_month": "2016-05", "year": 2016 }, "distance_pc": 12.42988881, "eccentricity": 0.00654, "equilibrium_temperature_k": 339.7, "host_name": "TRAPPIST-1", "insolation_earth": 2.214, "letter": "c", "mass_earth": 1.308, "mass_jupiter": 0.00411543, "mass_kind": "Mass", "name": "TRAPPIST-1 c", "orbital_period_days": 2.421937, "radius_earth": 1.097, "radius_jupiter": 0.09786795, "semi_major_axis_au": 0.0158 }, { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/TRAPPIST-1%20d", "controversial": false, "density_g_cm3": 4.366784, "discovery": { "facility": "La Silla Observatory", "method": "Transit", "publication_month": "2016-05", "year": 2016 }, "distance_pc": 12.42988881, "eccentricity": 0.00837, "equilibrium_temperature_k": 286.2, "host_name": "TRAPPIST-1", "insolation_earth": 1.115, "letter": "d", "mass_earth": 0.388, "mass_jupiter": 0.00122078, "mass_kind": "Mass", "name": "TRAPPIST-1 d", "orbital_period_days": 4.049219, "radius_earth": 0.788, "radius_jupiter": 0.07030077, "semi_major_axis_au": 0.02227 }, { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/TRAPPIST-1%20e", "controversial": false, "density_g_cm3": 4.901605, "discovery": { "facility": "Multiple Observatories", "method": "Transit", "publication_month": "2017-02", "year": 2017 }, "distance_pc": 12.42988881, "eccentricity": 0.0051, "equilibrium_temperature_k": 249.7, "host_name": "TRAPPIST-1", "insolation_earth": 0.646, "letter": "e", "mass_earth": 0.692, "mass_jupiter": 0.00217728, "mass_kind": "Mass", "name": "TRAPPIST-1 e", "orbital_period_days": 6.101013, "radius_earth": 0.92, "radius_jupiter": 0.08207704, "semi_major_axis_au": 0.02925 }, { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/TRAPPIST-1%20f", "controversial": false, "density_g_cm3": 5.022904, "discovery": { "facility": "Multiple Observatories", "method": "Transit", "publication_month": "2017-02", "year": 2017 }, "distance_pc": 12.42988881, "eccentricity": 0.01007, "equilibrium_temperature_k": 217.7, "host_name": "TRAPPIST-1", "insolation_earth": 0.373, "letter": "f", "mass_earth": 1.039, "mass_jupiter": 0.00326906, "mass_kind": "Mass", "name": "TRAPPIST-1 f", "orbital_period_days": 9.20754, "radius_earth": 1.045, "radius_jupiter": 0.09322882, "semi_major_axis_au": 0.03849 }, { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/TRAPPIST-1%20g", "controversial": false, "density_g_cm3": 5.055986, "discovery": { "facility": "Multiple Observatories", "method": "Transit", "publication_month": "2017-02", "year": 2017 }, "distance_pc": 12.42988881, "eccentricity": 0.00208, "equilibrium_temperature_k": 197.3, "host_name": "TRAPPIST-1", "insolation_earth": 0.252, "letter": "g", "mass_earth": 1.321, "mass_jupiter": 0.00415633, "mass_kind": "Mass", "name": "TRAPPIST-1 g", "orbital_period_days": 12.352446, "radius_earth": 1.129, "radius_jupiter": 0.10072281, "semi_major_axis_au": 0.04683 }, { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/TRAPPIST-1%20h", "controversial": false, "density_g_cm3": 4.16278, "discovery": { "facility": "Multiple Observatories", "method": "Transit", "publication_month": "2017-02", "year": 2017 }, "distance_pc": 12.42988881, "eccentricity": 0.00567, "equilibrium_temperature_k": 171.7, "host_name": "TRAPPIST-1", "insolation_earth": 0.144, "letter": "h", "mass_earth": 0.326, "mass_jupiter": 0.00102571, "mass_kind": "Mass", "name": "TRAPPIST-1 h", "orbital_period_days": 18.772866, "radius_earth": 0.755, "radius_jupiter": 0.0673567, "semi_major_axis_au": 0.06189 } ], "source_url": "https://exoplanetarchive.ipac.caltech.edu/TAP/sync?query=select%20pl_name%2Chostname%2Cpl_letter%2Cdisc_year%2Cdiscoverymethod%2Cdisc_facility%2Cdisc_pubdate%2Cpl_orbper%2Cpl_orbsmax%2Cpl_orbeccen%2Cpl_rade%2Cpl_radj%2Cpl_bmasse%2Cpl_bmassj%2Cpl_bmassprov%2Cpl_eqt%2Cpl_insol%2Cpl_dens%2Cpl_controv_flag%2Cst_spectype%2Cst_teff%2Cst_rad%2Cst_mass%2Cst_met%2Cst_age%2Csy_snum%2Csy_pnum%2Csy_dist%2Csy_vmag%2Cra%2Cdec%20from%20pscomppars%20where%20replace%28lower%28hostname%29%2C%27%20%27%2C%27%27%29%3D%27trappist-1%27%20order%20by%20pl_name&format=json", "star": { "age_gyr": 7.6, "effective_temperature_k": 2566, "mass_solar": 0.0898, "metallicity_dex": 0.052, "name": "TRAPPIST-1", "radius_solar": 0.1192, "spectral_type": "M8.0 V" }, "star_parameters_vary": false, "system": { "dec_deg": -5.0434618, "distance_pc": 12.42988881, "planet_count": 7, "ra_deg": 346.6263919, "star_count": 1, "v_magnitude": 17.02 } } ``` ### Search planets - Capability: `exoplanets/search_planets` - Description: Search all confirmed exoplanets (about 6,400) by discovery method, discovery facility, host star, discovery year, radius, mass, orbital period, equilibrium temperature and distance, sorted by newest or oldest discovery, nearest system, radius, orbital period or name. Returns up to 100 planets with the same fields get_planet returns for a planet, the total number of matches and whether the list was cut. With no filters it lists the most recently published discoveries. Source: TAP sync over pscomppars; one request, plus a count request when more planets match than the limit. - Instructions: Questions over the catalogue: recent discoveries, planets found by TESS or JWST, Earth-sized planets in temperate orbits, the nearest exoplanets, how many planets microlensing has found. Ranges are inclusive, and a planet without a value for a filtered field is left out. - Cost: 5 credits per call - Capability file: [Search planets](https://alexandria.firecrawl.dev/agents/providers/exoplanetarchive-ipac-caltech-edu/exoplanets/search_planets) Accepted options: - `discovery_facility` (string): Case-insensitive substring of the discovery facility, e.g. 'TESS', 'Kepler', 'James Webb', 'Keck'. Example: `` - `discovery_method` (string): Only planets found by this method. Example: `Astrometry` - `discovery_year_max` (number): Highest discovery year (inclusive). Example: `1980` - `discovery_year_min` (number): Lowest discovery year (inclusive). Example: `1980` - `distance_pc_max` (number): Highest system distance in parsecs (1 pc = 3.26 light years) (inclusive). Example: `10` - `distance_pc_min` (number): Lowest system distance in parsecs (1 pc = 3.26 light years) (inclusive). Example: `10` - `equilibrium_temperature_k_max` (number): Highest equilibrium temperature in kelvin (inclusive). Example: `10` - `equilibrium_temperature_k_min` (number): Lowest equilibrium temperature in kelvin (inclusive). Example: `10` - `host_name` (string): Only planets of this host star (case and spaces ignored). Example: `` - `limit` (number): Planets to return (1 to 100). Example: `25` - `mass_earth_max` (number): Highest mass in Earth masses (planets with no mass value are excluded when set) (inclusive). Example: `10` - `mass_earth_min` (number): Lowest mass in Earth masses (planets with no mass value are excluded when set) (inclusive). Example: `10` - `orbital_period_days_max` (number): Highest orbital period in days (inclusive). Example: `10` - `orbital_period_days_min` (number): Lowest orbital period in days (inclusive). Example: `10` - `radius_earth_max` (number): Highest radius in Earth radii (inclusive). Example: `10` - `radius_earth_min` (number): Lowest radius in Earth radii (inclusive). Example: `10` - `sort` (string): Order: newest or oldest discovery publication, nearest system, radius or orbital period ascending/descending, or name. Numeric sorts leave out planets without that value. Example: `newest` Response schema example: ```json { "observed_at_ms": 1794422700000, "planets": [ { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/PSR%20B1257%2B12%20c", "controversial": false, "density_g_cm3": 3.39, "discovery": { "facility": "Arecibo Observatory", "method": "Pulsar Timing", "publication_month": "1992-01", "year": 1992 }, "distance_pc": 600, "eccentricity": 0.0186, "equilibrium_temperature_k": null, "host_name": "PSR B1257+12", "insolation_earth": null, "letter": "c", "mass_earth": 4.3, "mass_jupiter": 0.01352925, "mass_kind": "Mass", "name": "PSR B1257+12 c", "orbital_period_days": 66.5419, "radius_earth": 1.91, "radius_jupiter": 0.17, "semi_major_axis_au": 0.36 }, { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/PSR%20B1257%2B12%20d", "controversial": false, "density_g_cm3": 3.67, "discovery": { "facility": "Arecibo Observatory", "method": "Pulsar Timing", "publication_month": "1992-01", "year": 1992 }, "distance_pc": 600, "eccentricity": 0.0264, "equilibrium_temperature_k": null, "host_name": "PSR B1257+12", "insolation_earth": null, "letter": "d", "mass_earth": 3.9, "mass_jupiter": 0.01227071, "mass_kind": "Mass", "name": "PSR B1257+12 d", "orbital_period_days": 98.2114, "radius_earth": 1.8, "radius_jupiter": 0.161, "semi_major_axis_au": 0.46 }, { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/PSR%20B1257%2B12%20b", "controversial": false, "density_g_cm3": 2.85, "discovery": { "facility": "Arecibo Observatory", "method": "Pulsar Timing", "publication_month": "1994-04", "year": 1994 }, "distance_pc": 600, "eccentricity": 0, "equilibrium_temperature_k": null, "host_name": "PSR B1257+12", "insolation_earth": null, "letter": "b", "mass_earth": 0.02, "mass_jupiter": 0.00006293, "mass_kind": "Mass", "name": "PSR B1257+12 b", "orbital_period_days": 25.262, "radius_earth": 0.338, "radius_jupiter": 0.0302, "semi_major_axis_au": 0.19 }, { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/PSR%20B1620-26%20b", "controversial": false, "density_g_cm3": 1.86, "discovery": { "facility": "Hubble Space Telescope", "method": "Pulsar Timing", "publication_month": "2003-07", "year": 2003 }, "distance_pc": null, "eccentricity": null, "equilibrium_temperature_k": null, "host_name": "PSR B1620-26", "insolation_earth": null, "letter": "b", "mass_earth": 794.575, "mass_jupiter": 2.5, "mass_kind": "Mass", "name": "PSR B1620-26 b", "orbital_period_days": null, "radius_earth": 13.3, "radius_jupiter": 1.18, "semi_major_axis_au": 23 }, { "archive_url": "https://exoplanetarchive.ipac.caltech.edu/overview/PSR%20J1719-1438%20b", "controversial": false, "density_g_cm3": 23, "discovery": { "facility": "Parkes Observatory", "method": "Pulsar Timing", "publication_month": "2011-09", "year": 2011 }, "distance_pc": 1200, "eccentricity": 0.06, "equilibrium_temperature_k": null, "host_name": "PSR J1719-1438", "insolation_earth": null, "letter": "b", "mass_earth": 382.8, "mass_jupiter": 1.2, "mass_kind": "Mass", "name": "PSR J1719-1438 b", "orbital_period_days": 0.090706293, "radius_earth": null, "radius_jupiter": null, "semi_major_axis_au": 0.0044 } ], "returned": 5, "sort": "oldest", "source_url": "https://exoplanetarchive.ipac.caltech.edu/TAP/sync?query=select%20top%206%20pl_name%2Chostname%2Cpl_letter%2Cdisc_year%2Cdiscoverymethod%2Cdisc_facility%2Cdisc_pubdate%2Cpl_orbper%2Cpl_orbsmax%2Cpl_orbeccen%2Cpl_rade%2Cpl_radj%2Cpl_bmasse%2Cpl_bmassj%2Cpl_bmassprov%2Cpl_eqt%2Cpl_insol%2Cpl_dens%2Cpl_controv_flag%2Cst_spectype%2Cst_teff%2Cst_rad%2Cst_mass%2Cst_met%2Cst_age%2Csy_snum%2Csy_pnum%2Csy_dist%2Csy_vmag%2Cra%2Cdec%20from%20pscomppars%20where%20discoverymethod%3D%27Pulsar%20Timing%27%20order%20by%20disc_pubdate%20asc%2C%20pl_name&format=json", "total": 8, "truncated": true } ```