(Q94498667)

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

unconfirmed exoplanet

1 reference

SIMBAD

mass

4.32±5.26 Earth mass

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

0.0135±0.0167 Jupiter mass

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

K2-138g

2 references

Ecliptic Plane Input Catalog

TIC 4610830g

1 reference

EPIC 245950175g

1 reference

time of discovery or invention

2018

1 reference

May 2021

1 reference

K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System

K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System

2 references

inferred from equatorial coordinates

constellation

Aquarius

1 reference

based on heuristic

parent astronomical body

3 references

K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System

object stated in reference as

K2-138

object stated in reference as

2MASS J23154776-1050590

argument of periapsis

164±72 degree

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

164±92 degree

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

orbital eccentricity

0.059±0.063

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

orbital inclination

89.29±0.11 degree

1 reference

K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System

89.4±0.4 degree

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

orbital period

41.96797±0.00725 day

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

41.96645±0.00665 day

1 reference

K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System

41.96797±0.00843 day

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

semi-major axis of an orbit

0.2287±0.0249 astronomical unit

1 reference

K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System

0.23109±0.00196 astronomical unit

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

0.231±0.00196 astronomical unit

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

declination component of proper motion

parallax

4.9079±0.0486 milliarcsecond

2 references

−10.522±0.082 milliarcsecond per year

2 references

right ascension component of proper motion

−1.018±0.084 milliarcsecond per year

2 references

0.2688±0.0223 Jupiter radius

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

3.18±0.28 Earth radius

1 reference

K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System

3.013±0.303 Earth radius

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

0.2688±0.027 Jupiter radius

1 reference

Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS

3 references

right ascension

348.9490311 degree

1 reference

K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System

declination

−10.8497391 degree

1 reference

K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System