(Q3195371)

image

Sizes Kepler18 and Sun.jpg
500 × 149; 21 KB

0 references

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

0 references

mass

0.97 solar mass

1 reference

Third USNO CCD Astrograph Catalog

GSC 03149-02089

1 reference

2MASS J19521906+4444467

1 reference

KIC 8644288

1 reference

UCAC3 270-175956

1 reference

Spectroscopic Properties of Cool Stars

SPOCS 3123

catalog

1 reference

Kepler object of interest

Gaia DR2 2079295583282164992

1 reference

KOI-137

2 references

Kepler-18

catalog

Kepler Confirmed Names

2 references

Fourth USNO CCD Astrograph Catalog

UCAC4 674-077601

catalog

1 reference

inferred from equatorial coordinates

Gaia DR3 2079295583282164992

1 reference

TIC 273690178

1 reference

1 reference

child astronomical body

Kepler-18b

series ordinal

b

0 references

Kepler-18c

series ordinal

c

0 references

Kepler-18d

series ordinal

d

0 references

distance from Earth

438.52±3.23 parsec

reason for deprecated rank

item/value with less precision and/or accuracy

1 reference

436.376±2.247 parsec

1 reference

438.52±3.2306 parsec

1 reference

438.51 parsec

1 reference

stellar rotational velocity

1.7±0.5 kilometre per second

1 reference

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

0±1 kilometre per second

1 reference

The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets

8.63 kilometre per second

1 reference

2.164 kilometre per second

1 reference

APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South

2±0.5 kilometre per second

1 reference

Spectral Properties of Cool Stars: Extended Abundance Analysis of Kepler Objects of Interest

parallax

2.2804±0.0168 milliarcsecond

1 reference

2.2916±0.0118 milliarcsecond

1 reference

declination component of proper motion

−20.313±0.028 milliarcsecond per year

1 reference

−20.341±0.014 milliarcsecond per year

1 reference

right ascension component of proper motion

−1.432±0.031 milliarcsecond per year

1 reference

−1.436±0.014 milliarcsecond per year

1 reference

radial velocity

−18.4007±0.022622 kilometre per second

1 reference

APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South

−16.83±1.64 kilometre per second

1 reference

Gaia Data Release 3

−18.4007±0.02262 kilometre per second

1 reference

APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South

−21.8 kilometre per second

1 reference

Spectral Properties of Cool Stars: Extended Abundance Analysis of Kepler Objects of Interest

type of variable star

no value

0 references

rotating variable star

2 references

Photometric amplitude distribution of stellar rotation of KOIs--Indication for spin-orbit alignment of cool stars and high obliquity for hot stars

Inferring probabilistic stellar rotation periods using Gaussian processes

Third U.S. Naval Observatory CCD Astrograph Catalog (UCAC3)

13.93±0.06

1 reference

VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)

12.19±0.03

1 reference

VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)

11.873±0.025

1 reference

VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)

11.756±0.019

1 reference

13.526981±0.002759

1 reference

VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)

13.259±0.06

1 reference

VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)

13.501±0.06

1 reference

VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)

14.211±0.06

1 reference

VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)

13.767±0.03

1 reference

VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)

14.75±0.04

1 reference

luminosity

0.60291755±0.01279909 solar luminosity

1 reference

imported from Wikimedia project

absolute magnitude

4.89

1 reference

Russian Wikipedia

Wikimedia import URL

https://ru.wikipedia.org/?oldid=90244961

metallicity

0.282

1 reference

The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets

reason for deprecated rank

0.20

item/value with less precision and/or accuracy

3 references

Spectral properties of cool stars: extended abundance analysis of 1,617 planet-search stars

Validation of Kepler's multiple planet candidates. III. Light curve analysis and announcement of hundreds of new multi-planet systems

SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs

0.19±0.06

1 reference

0.203

1 reference

0.158

1 reference

APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South

reason for deprecated rank

0.19

item/value with less precision and/or accuracy

1 reference

Spectral Properties of Cool Stars: Extended Abundance Analysis of Kepler Objects of Interest

0.29

1 reference

The Kepler Follow-up Observation Program. II. Stellar Parameters from Medium- and High-resolution Spectroscopy

radius

1.0218081±0.0365197 solar radius

1 reference

1.11 solar radius

1 reference

imported from Wikimedia project

epoch

J2000.0

3 references

Russian Wikipedia

Wikimedia import URL

https://ru.wikipedia.org/?oldid=90244961

298.07945346355 degree

1 reference

declination

44.74633553581 degree

1 reference

effective temperature

5,441 kelvin

1 reference

The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets

5,359 kelvin

1 reference

Spectral properties of cool stars: extended abundance analysis of 1,617 planet-search stars

5,385 kelvin

2 references

A lack of short-period multiplanet systems with close-proximity pairs and the curious case of Kepler-42

Validation of Kepler's multiple planet candidates. III. Light curve analysis and announcement of hundreds of new multi-planet systems

5,383 kelvin

1 reference

SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs

5,345 kelvin

2 references

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

5,289 kelvin

1 reference

Characteristics of planetary candidates observed by Kepler. II. Analysis of the first four months of data

5,031.6±92.4 kelvin

1 reference

5,316 kelvin

1 reference

5,351 kelvin

1 reference

5,235 kelvin

1 reference

APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South

5,410 kelvin

1 reference

A Spectroscopic Analysis of the California-Kepler Survey Sample. I. Stellar Parameters, Planetary Radii, and a Slope in the Radius Gap

5,361 kelvin

1 reference

Spectral Properties of Cool Stars: Extended Abundance Analysis of Kepler Objects of Interest

5,460 kelvin

1 reference

The Kepler Follow-up Observation Program. II. Stellar Parameters from Medium- and High-resolution Spectroscopy

surface gravity

17,800 centimetre per square second

1 reference

Characteristics of planetary candidates observed by Kepler. II. Analysis of the first four months of data

20,400 centimetre per square second

2 references

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

SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs

25,200 centimetre per square second

1 reference

Validation of Kepler's multiple planet candidates. III. Light curve analysis and announcement of hundreds of new multi-planet systems

26,900 centimetre per square second

1 reference

A lack of short-period multiplanet systems with close-proximity pairs and the curious case of Kepler-42

24,000 centimetre per square second

2 references

Spectral properties of cool stars: extended abundance analysis of 1,617 planet-search stars

Spectral Properties of Cool Stars: Extended Abundance Analysis of Kepler Objects of Interest

26,100 centimetre per square second

1 reference

The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets

25,100 centimetre per square second

1 reference

28,000 centimetre per square second

1 reference

21,170 centimetre per square second

1 reference

APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South

25,000 centimetre per square second

1 reference

A Spectroscopic Analysis of the California-Kepler Survey Sample. I. Stellar Parameters, Planetary Radii, and a Slope in the Radius Gap

30,000 centimetre per square second

1 reference

The Kepler Follow-up Observation Program. II. Stellar Parameters from Medium- and High-resolution Spectroscopy

age estimated by a dating method

10 gigaannum

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