Kepler-18b (Q3195374)

Transit Timing Variations and linear ephemerides of confirmed Kepler transiting exoplanets

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

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

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

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

unconfirmed exoplanet

2 references

SIMBAD

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

image

Kepler-18 b comparative.jpg
432 × 195; 19 KB

0 references

mass

0.022±0.011 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

Kepler object of interest

catalog code

KOI-137.03

catalog

3 references

Kepler object of interest

Kepler-18b

1 reference

KOI-137b

2 references

reason for deprecated rank

TIC 273690178b

1 reference

Kepler-18b

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

0.03997961254±0.01229049023 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

84.92±0.26 degree

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

orbital period

3.504687554±0.00000358 day

1 reference

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

3.50471307±0.00000139 day

1 reference

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

3.5047266193±0.0000037769 day

1 reference

Transit Timing Variations and linear ephemerides of confirmed Kepler transiting exoplanets

reason for deprecated rank

3.504687554 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

3.504725±0.000028 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

0.04489767932 astronomical unit

1 reference

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

0.0447±0.0006 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

2.09±0.31 Earth radius

1 reference

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

2±0.1 Earth radius

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

1.778±0.186 Earth radius

1 reference

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

1.809±0.208 Earth radius

1 reference

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

0.178±0.009 Jupiter radius

1 reference

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

3 references