Kepler-18 d (Q3195376)

Densities and eccentricities of 139 Kepler planets from transit time variations

Kepler planet masses and eccentricities from TTV analysis

Revised Radii of Kepler Stars and Planets Using Gaia Data Release 2

Transit timing observations from Kepler. IX. Catalog of the full long-cadence data set

False positive probabilities for all Kepler objects of interest: 1284 newly validated planets and 428 likely false positives

KEPLER-18b, c, AND d: A SYSTEM OF THREE PLANETS CONFIRMED BY TRANSIT TIMING VARIATIONS, LIGHT CURVE VALIDATION,WARM-SPITZERPHOTOMETRY, AND RADIAL VELOCITY MEASUREMENTS

The Kepler Giant Planet Search. I: A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations

unconfirmed exoplanet

2 references

SIMBAD

Planetary candidates observed by Kepler. V. Planet sample from Q1-Q12 (36 months)

mass

0.052±0.004 Jupiter mass

2 references

KEPLER-18b, c, AND d: A SYSTEM OF THREE PLANETS CONFIRMED BY TRANSIT TIMING VARIATIONS, LIGHT CURVE VALIDATION,WARM-SPITZERPHOTOMETRY, AND RADIAL VELOCITY MEASUREMENTS

Understanding the mass-radius relation for sub-neptunes: radius as a proxy for composition

0.049±0.006 Jupiter mass

1 reference

Densities and eccentricities of 139 Kepler planets from transit time variations

14.9±4.2 Earth mass

1 reference

Kepler planet masses and eccentricities from TTV analysis

Kepler object of interest

catalog code

KOI-137.02

catalog

3 references

SIMBAD

Kepler object of interest

Kepler-18d

1 reference

KOI-137d

2 references

reason for deprecated rank

TIC 273690178d

1 reference

Kepler-18d

Kepler Confirmed Names

item/value with less precision and/or accuracy

2 references

imported from Wikimedia project

discoverer or inventor

Kepler Space Telescope

1 reference

Spanish Wikipedia

time of discovery or invention

November 2011

1 reference

KEPLER-18b, c, AND d: A SYSTEM OF THREE PLANETS CONFIRMED BY TRANSIT TIMING VARIATIONS, LIGHT CURVE VALIDATION,WARM-SPITZERPHOTOMETRY, AND RADIAL VELOCITY MEASUREMENTS

KEPLER-18b, c, AND d: A SYSTEM OF THREE PLANETS CONFIRMED BY TRANSIT TIMING VARIATIONS, LIGHT CURVE VALIDATION,WARM-SPITZERPHOTOMETRY, AND RADIAL VELOCITY MEASUREMENTS

2 references

inferred from equatorial coordinates

constellation

Cygnus

1 reference

based on heuristic

parent astronomical body

4 references

An abundance of small exoplanets around stars with a wide range of metallicities

KEPLER-18b, c, AND d: A SYSTEM OF THREE PLANETS CONFIRMED BY TRANSIT TIMING VARIATIONS, LIGHT CURVE VALIDATION,WARM-SPITZERPHOTOMETRY, AND RADIAL VELOCITY MEASUREMENTS

object stated in reference as

Kepler-18

object stated in reference as

2MASS J19521906+4444467

M sin i

0.07574893954±0.02007185433 Jupiter mass

1 reference

The Kepler Giant Planet Search. I: A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

orbital eccentricity

0.0

3 references

KEPLER-18b, c, AND d: A SYSTEM OF THREE PLANETS CONFIRMED BY TRANSIT TIMING VARIATIONS, LIGHT CURVE VALIDATION,WARM-SPITZERPHOTOMETRY, AND RADIAL VELOCITY MEASUREMENTS

The Kepler Giant Planet Search. I: A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

orbital inclination

88.07±0.1 degree

3 references

KEPLER-18b, c, AND d: A SYSTEM OF THREE PLANETS CONFIRMED BY TRANSIT TIMING VARIATIONS, LIGHT CURVE VALIDATION,WARM-SPITZERPHOTOMETRY, AND RADIAL VELOCITY MEASUREMENTS

ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations

reason for deprecated rank

orbital period

14.859 day

item/value with less precision and/or accuracy

2 references

Densities and eccentricities of 139 Kepler planets from transit time variations

Kepler planet masses and eccentricities from TTV analysis

14.85891873±0.00000074 day

1 reference

Transit timing observations from Kepler. IX. Catalog of the full long-cadence data set

14.858912687±0.000003763 day

1 reference

False positive probabilities for all Kepler objects of interest: 1284 newly validated planets and 428 likely false positives

reason for deprecated rank

14.85891269 day

item/value with less precision and/or accuracy

1 reference

The Kepler Giant Planet Search. I: A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

14.8589223±0.0000091 day

1 reference

ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations

14.85888±0.00004 day

1 reference

KEPLER-18b, c, AND d: A SYSTEM OF THREE PLANETS CONFIRMED BY TRANSIT TIMING VARIATIONS, LIGHT CURVE VALIDATION,WARM-SPITZERPHOTOMETRY, AND RADIAL VELOCITY MEASUREMENTS

semi-major axis of an orbit

0.1176112981 astronomical unit

1 reference

The Kepler Giant Planet Search. I: A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

0.1172±0.0017 astronomical unit

1 reference

KEPLER-18b, c, AND d: A SYSTEM OF THREE PLANETS CONFIRMED BY TRANSIT TIMING VARIATIONS, LIGHT CURVE VALIDATION,WARM-SPITZERPHOTOMETRY, AND RADIAL VELOCITY MEASUREMENTS

declination component of proper motion

parallax

2.2804±0.0168 milliarcsecond

2 references

−20.313±0.028 milliarcsecond per year

2 references

right ascension component of proper motion

−1.432±0.031 milliarcsecond per year

2 references

0.623±0.029 Jupiter radius

2 references

KEPLER-18b, c, AND d: A SYSTEM OF THREE PLANETS CONFIRMED BY TRANSIT TIMING VARIATIONS, LIGHT CURVE VALIDATION,WARM-SPITZERPHOTOMETRY, AND RADIAL VELOCITY MEASUREMENTS

Understanding the mass-radius relation for sub-neptunes: radius as a proxy for composition

5.198±0.222 Earth radius

1 reference

Revised Radii of Kepler Stars and Planets Using Gaia Data Release 2

0.591±0.04 Jupiter radius

1 reference

Densities and eccentricities of 139 Kepler planets from transit time variations

6.04±0.46 Earth radius

1 reference

False positive probabilities for all Kepler objects of interest: 1284 newly validated planets and 428 likely false positives

6±0.4 Earth radius

1 reference

Kepler planet masses and eccentricities from TTV analysis

5.112±0.128 Earth radius

1 reference

The Kepler Giant Planet Search. I: A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

3 references