| name |
Planet Name |
Kepler-assigned planet name in form kepler-n[b,c,d..] where n is a sequential number assigned by the project followed by a letter (starting with b) to distinguish planets in multiple planetary systems. |
example: kepler-7b |
string |
| koi |
KOI |
Kepler assigned Object of Interest (KOI) number with decimal value indicating planet number. |
example: 18.01, 377.03 |
float |
| kepler_id |
Kepler ID |
Non-unique Kepler ID identifying corresponding star entry in the Kepler Input Catalog. Note multiple planets can be assigned the same kepler ID. |
range: 2571238 to 12644769 |
integer |
| kic_ra |
RA (J2000) |
Right Ascension in decimal degrees derived from Kepler Input Catalog |
range: 281.288 to 299.407 |
ra |
| kic_dec |
Dec (J2000) |
Declination in decimal degrees as extracted from Kepler Input Catalog |
range: 37.85 to 51.76 |
dec |
| mass |
Planet Mass |
Estimated planet mass (earth = 1.0) |
range: roughly 2.3 to 2700 |
string |
| temp |
Planet temp |
Computed planet temperatures are based on an assumption that the planet is in equilibrium with radiation from its star balanced by its own black body radiation, taking into account some reflection of radiation from the planet (albedo). Actual albedo is unknown. The planet temperatures calculated do not take into account atmospheric properties, since these are unknown. If Earth did not have atmosphere, its temperature would be below the freezing point of water. In the case of Jupiter, not only does it have an atmosphere to complicate things, but a significant internal heat source as well. |
range: roughly 170 to 2000 degrees K |
string |
| planet_radius |
Planet Radius |
Estimated planet radius (earth = 1.0) |
range: 1.42 to 19 |
float |
| density |
Planet Density |
Estimated Planet density |
range: 0.17 to 10 |
string |
| transit_duration |
Transit duration |
Duration of transit |
range: roughly 2 to 10 |
string |
| period |
Period |
Estimated Planet period in earth days |
range: roughly 0.8 to 229 |
string |
| semi_major_axis |
Semi-major Axis |
Estimated semi-major axis in AU. |
range: 0.016 to 0.7 |
float |
| eccentricity |
Eccentricity |
Estimated eccentricity of planet orbit |
range: roughly 0 to 0.15 |
string |
| inclination |
Inclination |
The inclination is the tilt of the orbital plane of the planet with respect to the plane of the sky, so 90 degrees is viewing the planet's orbit edge-on. All transiting planets with long-period orbits have this inclination very close to 90 degrees, and even close-in transiting planets have inclinations above ~ 80 degrees. |
range: roughly 84 to 90. |
string |
| dist |
Distance |
Estimated distance in parsecs to star |
range: 61 to 2119 |
integer |
| kic_feh |
Metallicity |
Derived Log10 Fe/H metallicity accurate to 0.5 dex. |
range: -0.3 to 0.34 |
string |
| stellar_mass |
Stellar Mass |
Estimated Stellar Mass (solar = 1.0) |
range: roughly 0.2 to 1.5 |
string |
| stellar_radius |
Stellar Radius |
Estimated Stellar Radius (solar = 1.0) |
range: 0.2 to 2 |
string |
| kic_teff |
Stellar Teff |
Derived Effective Temperature accurate to 200 K |
range: 4450 to 6500 degrees K |
string |
| kic_kepmag |
KEP Mag |
A magnitude computed according to a hierarchical scheme and depends on what pre-existing catalog source is available, SCP, Tycho 2, or photographic photometry, in order of preferred selection. For SCP stars the magnitude is synthesized from the Sloan-like g and r magnitudes according to the following prescription: if one defines 'color' as g - r, then for color less than or equal to 0.8 kepmag = 0.8r + 0.2g, while for color greater than 0.8 kepmag = 0.9r + 0.1g. Empirical measurements for presumed constant stars suggest that the r.m.s. for this quantity is slightly larger 0.02 mags. except for very faint and bright stars. |
range: 10.97 to 13.7 |
float |
| last_updated |
Last Update |
Date of last update. |
example: 9/8/2011 12:00:00 Note, as with all MAST datetime fields, the following examples are valid date formats when submitting queries: "< Jan 10 2008", "Jul 1 2009 .. Aug 1 2009", "1/1/2008", "2009 Jul 15 14:30:20" |
datetime |
| koi_number |
KOI Name |
Kepler assigned Object of Interest (KOI) name |
example: KOI-157 |
string |
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