K2-18 (Q25430718)

Fourth USNO CCD Astrograph Catalog

catalog code

UCAC4 488-054338

catalog

1 reference

Catalogs of proper-motion stars. I. Stars brighter than visual magnitude 15 and with annual proper motion of 1" or more

2MASS J11301450+0735180

1 reference

Gaia DR2 3910747531814692736

1 reference

PM J11302+0735

1 reference

CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS

Gaia DR3 3910747531814692736

1 reference

TIC 388804061

1 reference

Karmn J11302+076

1 reference

K2-18

1 reference

Ecliptic Plane Input Catalog

EPIC 201912552

catalog

1 reference

inferred from equatorial coordinates

1 reference

child astronomical body

K2-18b

series ordinal

b

0 references

K2-18c

series ordinal

c

0 references

distance from Earth

38.0683±0.0791 parsec

1 reference

38.1±0.0386 parsec

1 reference

parallax

26.2686±0.0546 milliarcsecond

1 reference

26.2469±0.0266 milliarcsecond

1 reference

declination component of proper motion

−133.142±0.063 milliarcsecond per year

1 reference

−133.007±0.023 milliarcsecond per year

1 reference

right ascension component of proper motion

−80.377±0.083 milliarcsecond per year

1 reference

−80.479±0.026 milliarcsecond per year

1 reference

radial velocity

0.328 kilometre per second

1 reference

The CARMENES search for exoplanets around M dwarfs. High-resolution optical and near-infrared spectroscopy of 324 survey stars

type of variable star

rotating variable star

1 reference

CARMENES input catalogue of M dwarfs

spectral class

M2.5 V

1 reference

dM2.5

1 reference

The CARMENES search for exoplanets around M dwarfs. Different roads to radii and masses of the target stars

M3V

1 reference

Characterizing K2 Candidate Planetary Systems Orbiting Low-mass Stars. IV. Updated Properties for 86 Cool Dwarfs Observed during Campaigns 1-17

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

15.01±0.06

1 reference

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

13.5±0.05

1 reference

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

13.24±0.07

1 reference

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

9.763±0.028

1 reference

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

9.135±0.026

1 reference

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

8.899±0.019

1 reference

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

14.22±0.05

1 reference

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

12.86±0.04

1 reference

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

11.66±0.08

1 reference

12.400764±0.002839

1 reference

metallicity

0.12±0.16

1 reference

−0.46

1 reference

−0.19

1 reference

The CARMENES search for exoplanets around M dwarfs. Stellar atmospheric parameters of target stars with SteParSyn

−0.13

1 reference

The CARMENES search for exoplanets around M dwarfs. Stellar atmospheric parameters of target stars with SteParSyn

0.07

1 reference

Characterizing K2 Candidate Planetary Systems Orbiting Low-mass Stars. IV. Updated Properties for 86 Cool Dwarfs Observed during Campaigns 1-17

−0.03

1 reference

The CARMENES search for exoplanets around M dwarfs. Different roads to radii and masses of the target stars

−0.04

1 reference

The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy. II. Simultaneous multiwavelength range modeling of activity insensitive lines

0.39

1 reference

The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy. II. Simultaneous multiwavelength range modeling of activity insensitive lines

−0.05

1 reference

The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy. II. Simultaneous multiwavelength range modeling of activity insensitive lines

−0.69

1 reference

The K2-HERMES Survey. I. Planet-candidate Properties from K2 Campaigns 1–3

radius

0.41±0.04 solar radius

1 reference

2 references

172.56049060233 degree

1 reference

declination

7.58840426347 degree

1 reference

effective temperature

3,856.18±289.595 kelvin

1 reference

4,120 kelvin

1 reference

3,492 kelvin

1 reference

The GALAH+ survey: Third data release

3,565 kelvin

1 reference

The CARMENES search for exoplanets around M dwarfs. Stellar atmospheric parameters of target stars with SteParSyn

3,563 kelvin

1 reference

The CARMENES search for exoplanets around M dwarfs. Stellar atmospheric parameters of target stars with SteParSyn

3,479 kelvin

1 reference

Characterizing K2 Candidate Planetary Systems Orbiting Low-mass Stars. IV. Updated Properties for 86 Cool Dwarfs Observed during Campaigns 1-17

3,513 kelvin

1 reference

The CARMENES search for exoplanets around M dwarfs. Different roads to radii and masses of the target stars

3,453 kelvin

1 reference

The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy. II. Simultaneous multiwavelength range modeling of activity insensitive lines

3,590 kelvin

1 reference

The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy. II. Simultaneous multiwavelength range modeling of activity insensitive lines

3,445 kelvin

1 reference

The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy. II. Simultaneous multiwavelength range modeling of activity insensitive lines

4,180 kelvin

1 reference

The K2-HERMES Survey. I. Planet-candidate Properties from K2 Campaigns 1–3

reason for deprecated rank

3,500 kelvin

item/value with less precision and/or accuracy

1 reference

Exploring the stellar properties of M dwarfs with high-resolution spectroscopy from the optical to the near-infrared

3,457±39 kelvin

1 reference

surface gravity

13,800 centimetre per square second

1 reference

63,930 centimetre per square second

1 reference

The GALAH+ survey: Third data release

85,000 centimetre per square second

1 reference

The CARMENES search for exoplanets around M dwarfs. Stellar atmospheric parameters of target stars with SteParSyn

81,000 centimetre per square second

1 reference

The CARMENES search for exoplanets around M dwarfs. Different roads to radii and masses of the target stars

54,000 centimetre per square second

1 reference

The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy. II. Simultaneous multiwavelength range modeling of activity insensitive lines

44,000 centimetre per square second

1 reference

The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy. II. Simultaneous multiwavelength range modeling of activity insensitive lines

42,000 centimetre per square second

1 reference

The K2-HERMES Survey. I. Planet-candidate Properties from K2 Campaigns 1–3

100,000 centimetre per square second

1 reference

Exploring the stellar properties of M dwarfs with high-resolution spectroscopy from the optical to the near-infrared