This table has been retired and is no longer being updated. Please use the Planetary Systems (PS) or Planetary System Composite Parameters (PSCompPars) Tables for the most current data, and refer to the documentation for data column definitions. More details about the retired and new tables are in the Developing a More Integrated NASA Exoplanet Archive page.
Composite Planet Data Table Definitions
Like the Confirmed Planet table, the Composite Planet Data table provides a collection of stellar and planetary parameters for confirmed exoplanets, one row per planet. However, in this case, where there are gaps in the parameters for a given planet (usually because the default literature reference did not provide them), the table automatically selects the data from other available literature references for the same planet. The selections are based on a hierarchy of selection criteria (i.e., best precision, most recent). For a definition of default parameters, see the Exoplanet Criteria page.
Users should treat the Composite Planet Data table with caution: data may not be self-consistent if drawn from multiple sources! See About the Composite Planet Data Table for more information. To browse a table containing all planet and host star solutions, see the alpha release of the Planetary Systems table.
This page lists and defines all of the data columns in the Composite Planet Data (compositepars) table that can be returned through the Exoplanet Archive that can be returned through the Exoplanet Archive's application programming interface (API), or when using the Composite Planet Data interactive table. These column names can also be specified in pre-filtered table queries.
There are similar documents for other data sets. The full list is in the API User Guide in the Data Available Through the API section (click on the documentation links).
Some data include more specific information that can also be retrieved as separate calls in the API. These include:
- Uncertainties (positive and negative)
- Limits
The stellar parameters listed for circumbinary planets (e.g. Kepler-16) are for the primary star.
Digital Object Identifier
If you use archive data or services for your research, please include the following Digital Object Identifier (DOI) as part of your acknowledgment:
DOI 10.26133/NEA2
See Acknowledging the Archive for dataset-specific language. See the full list of NASA Exoplanet Archive DOIs for other data sets and services.
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Planet Parameters
| Database Column Name |
Table Label | Description | Uncertainties Column (positive +) (negative -) |
Displayed String Name | Limit Column |
|---|---|---|---|---|---|
| fpl_hostname† | Host Name | Stellar name most commonly used in the literature. | |||
| fpl_letter† | Planet Letter | Letter assigned to the planetary component of a planetary system. | |||
| fpl_name† | Planet Name | Planet name most commonly used in the literature. | |||
| fpl_discmethod† | Discovery Method | Method by which the planet was first identified. | |||
| fpl_disc† | Year of Discovery | Year the planet was discovered | |||
| fpl_controvflag† | Controversial Flag | Flag indicating whether the confirmation status of a planet has been questioned in the published literature (1=yes, 0=no) | |||
| fpl_orbper† | Orbital Period (days) | Time the planet takes to make a complete orbit around the host star or system. | (+) fpl_orbpererr1 (-) fpl_orbpererr2 |
fpl_orbperstr | fpl_orbperlim |
| fpl_orbperreflink† | Orbital Period Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| fpl_smax† | Orbit Semi-Major Axis (au) | The longest radius of an elliptic orbit, or, for exoplanets detected via gravitational microlensing or direct imaging, the projected separation in the plane of the sky. | (+) fpl_smaxerr1 (-) fpl_smaxerr2 |
fpl_smaxstr | fpl_smaxlim |
| fpl_smaxreflink† | Orbit Semi-Major Axis Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| fpl_eccen† | Eccentricity | Amount by which the orbit of the planet deviates from a perfect circle. | (+) fpl_eccenerr1 (-) fpl_eccenerr2 |
fpl_eccenstr | fpl_orbeccenlim |
| fpl_eccenreflink† | Eccentricity Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| fpl_bmasse† | Planet Mass or M*sin(i) [Earth mass] | Best planet mass estimate available, in order of preference: Mass, M*sin(i)/sin(i), or M*sin(i), depending on availability, and measured in Earth masses. See Planet Mass M*sin(i) Provenance (fpl_bmassprov) to determine which measure applies. | (+) fpl_bmasseerr1 (-) fpl_bmasseerr2 |
fpl_bmassestr | fpl_bmasselim |
| fpl_bmassj | Planet Mass or M*sin(i) [Jupiter mass] | Best planet mass estimate available, in order of preference: Mass, M*sin(i)/sin(i), or M*sin(i), depending on availability, and measured in Jupiter masses. See Planet Mass M*sin(i) Provenance (fpl_bmassprov) to determine which measure applies. | (+) fpl_bmassjerr1 (-) fpl_bmassjerr2 |
fpl_bmassjstr | fpl_bmassjlim |
| fpl_bmassprov† | Planet Mass or M*sin(i) Provenance | Provenance of the measurement of the best mass. Options are: Mass, M*sin(i)/sin(i), and M*sini. | |||
| fpl_bmassreflink† | Planet Mass or M*sin(i) Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| fpl_rade† | Planet Radius [Earth radii] | Length of a line segment from the center of the planet to its surface, measured in units of radius of the Earth. | (+) fpl_radeerr1 (-) fpl_radeerr2 |
fpl_radestr | fpl_radelim |
| fpl_radj | Planet Radius[Jupiter radii] |
Length of a line segment from the center of the planet
to its surface, measured in units of radius of Jupiter. |
(+) fpl_radjerr1 (-) fpl_radjerr2 |
fpl_radjstr | fpl_radjlim |
| fpl_rads | Planet Radius [Solar] | Length of a line segment from the center of the planet to its surface, measured in units of radius of the Sun. | (+) fpl_radserr1 (-) fpl_radserr2 |
fpl_radsstr | fpl_radslim |
| fpl_radreflink† | Planet Radius Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| fpl_dens† | Planet Density (g/cm**3) | Amount of mass per unit of volume of the planet. | (+) fpl_denserr1 (-) fpl_denserr2 |
fpl_densstr | fpl_denslim |
| fpl_densreflink† | Planet Density Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| fpl_eqt† | Planet Equilibrium Temperature [K] | The equilibrium temperature of the planet as modeled by a black body heated only by its host star, or for directly imaged planets, the effective temperature of the planet required to match the measured luminosity if the planet were a black body. | (+) fpl_eqterr1 (-) fpl_eqterr2 |
fpl_eqtstr | fpl_eqtlim |
| fpl_eqtreflink† | Equilibrium Temperature Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| fpl_insol† | Insolation Flux [Earth flux] | Insolation flux is another way to give the equilibrium temperature. It's given in units relative to those measured for the Earth from the Sun. | (+) fpl_insolerr1 (-) fpl_insolerr2 |
fpl_insolstr | fpl_insollim |
| fpl_insolreflink† | Insolation Flux Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| fpl_tranflag | Planet Transit Flag | Flag indicating if the planet transits its host star (1=yes, 0=no) | |||
| fpl_cbflag | Circumbinary Flag | Flag indicating whether the planet orbits a binary system (1=yes, 0=no) |
† Default column: These columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked. In API queries, data for all default columns are returned when no columns are specified in the query. For more information about defaults, see the FAQ.
Stellar Columns
| Database Column Name |
Table Label | Description | Uncertainties Column (positive +) (negative -) |
Displayed String Name | Limit Column |
|---|---|---|---|---|---|
| fpl_snum | Number of Stars in System | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| ra_str† | RA [sexagesimal] | Right Ascension of the planetary system in sexagesimal format. | |||
| dec_str† | Dec [sexagesimal] | Declination of the planetary system in sexagesimal notation. | |||
| ra | RA [decimal degrees] | Right Ascension of the planetary system in decimal degrees. | |||
| dec | Dec [decimal degrees] | Declination of the planetary system in decimal degrees. | |||
| fst_posreflink† | RA/Dec Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| fst_dist† | Distance [pc] | Distance to the planetary system in units of parsecs. | (+) fst_disterr1 (-) fst_disterr2 |
fst_diststr | fst_distlim |
| fst_distreflink† | Distance Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. | |||
| fst_optmag† | Optical Magnitude [mag] | Brightness of the host star as measured using V (Johnson), Gaia G-band, or Kepler-band in units of magnitudes. | fst_optmagerr |
fst_optmagstr | fst_optmaglim |
| fst_optmagband† | Optical Magnitude Band | Band corresponding to the Optical Magnitude. Options are: V (Johnson), G (Gaia), or Kepler-band. |
|
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| fst_optmagreflink† | Optical Magnitude Reference | The paper that published this value. | |||
| fst_nirmag† | Near-IR Magnitude [mag] | Brightness of the host star as measured using the Ks (2MASS) or the J (2MASS) in units of magnitudes. | fst_nirmagerr |
fst_nirmagstr | fst_nirmaglim |
| fst_nirmagband† | Near-IR Magnitude Band | Band corresponding to the Near-IR Magnitude. Options are: Ks (2MASS) or J (2MASS). |
|
||
| fst_nirmagreflink† | Near-IR Magnitude Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. |
|
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| fst_spt† | Spectral Type | Classification of the star based on their spectral characteristics following the Morgan-Keenan system. | fst_spterr | fst_sptstr | fst_sptlim |
| fst_sptreflink† | Spectral Type Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. |
|
||
| fst_teff† | Effective Temperature [K] |
Temperature of the star as modeled by a
black body emitting the same total amount
of electromagnetic radiation. |
(+) fst_tefferr1 (-) fst_tefferr2 |
fst_teffstr | fst_tefflim |
| fst_teffreflink† | Effective Temperature Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. |
|
||
| fst_logg† | Stellar Surface Gravity [log10(cm/s**2)] | Gravitational acceleration experienced at the stellar surface. | (+) fst_loggerr1 (-) fst_loggerr2 |
fst_loggstr | fst_logglim |
| fst_loggreflink† | Stellar Surface Gravity Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. |
|
||
| fst_lum† | Stellar Luminosity [log(Solar luminosity)] | Amount of energy emitted by a star per unit time, measured in units of solar luminosities. | (+) fst_lumerr1 (-) fst_lumerr2 |
fst_lumstr | fst_lumlim |
| fst_lumreflink† | Stellar Luminosity Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. |
|
||
| fst_mass† | Stellar Mass [Solar mass] | Amount of matter contained in the star, measured in units of masses of the Sun. | (+) fst_masserr1 (-) fst_masserr2 |
fst_massstr | fst_masslim |
| fst_massreflink† | Stellar Mass Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. |
|
||
| fst_rad† | Stellar Radius [Solar radii] |
Length of a line segment from the center of the star
to its surface, measured in units of radius of the Sun. |
(+) fst_raderr1 (-) fst_raderr2 |
fst_radstr | fst_radsim |
| fst_radreflink† | Stellar Radius Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. |
|
||
| fst_met† | Stellar Metallicity [dex] | Measurement of the metal content of the photosphere of the star as compared to the hydrogen content. | (+) fst_meterr1 (-) fst_meterr2 |
fst_metstr | fst_metlim |
| fst_metratio† | Metallicity Ratio | Ratio for the Metallicity Value ([Fe/H] denotes iron abundance, [M/H] refers to a general metal content) | |||
| fst_metreflink† | Stellar Metallicity Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. |
|
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| fst_age† | Stellar Age [Gyr] | The age of the host star. | (+) fst_ageerr1 (-) fst_ageerr2 |
fst_agestr | fst_agelim |
| fst_agereflink† | Stellar Age Reference | A link to either the paper that published this value, or an explanation of the archive's calculation that produced this value. |
|
† Default column: These columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked. In API queries, data for all default columns are returned when no columns are specified in the query. For more information about defaults, see the FAQ.
Last updated: 31 July 2020
