(Q48733776)

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

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

unconfirmed exoplanet

2 references

SIMBAD

The K2-138 System: A Near-resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists

mass

3.1±1.05 Earth mass

1 reference

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

0.0098 Jupiter mass

1 reference

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

K2-138b

2 references

Ecliptic Plane Input Catalog

EPIC 245950175b

catalog

2 references

imported from Wikimedia project

TIC 4610830b

1 reference

discoverer or inventor

Kepler

1 reference

Spanish Wikipedia

time of discovery or invention

2017

1 reference

February 2018

1 reference

The K2-138 System: A Near-resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists

The K2-138 System: A Near-resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists

2 references

inferred from equatorial coordinates

constellation

Aquarius

1 reference

based on heuristic

parent astronomical body

K2-138

3 references

The K2-138 System: A Near-resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists

object stated in reference as

K2-138

SIMBAD

object stated in reference as

K2-138

argument of periapsis

244±97 degree

1 reference

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

orbital eccentricity

0.403±0.403

1 reference

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

reason for deprecated rank

0.403

item/value with less precision and/or accuracy

1 reference

The K2-138 System: A Near-resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists

0.048±0.054

1 reference

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

orbital inclination

86.9±4.6 degree

1 reference

The K2-138 System: A Near-resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists

87.2±1.2 degree

1 reference

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

87.72±1.54 degree

1 reference

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

orbital period

2.35322±0.00036 day

1 reference

The K2-138 System: A Near-resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists

2.35309±0.00022 day

1 reference

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

2.35321±0.00037 day

1 reference

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

semi-major axis of an orbit

0.0338±0.00024 astronomical unit

1 reference

The K2-138 System: A Near-resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists

0.03385±0.00029 astronomical unit

1 reference

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

0.0338±0.0034 astronomical unit

1 reference

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

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

1.57±0.28 Earth radius

1 reference

The K2-138 System: A Near-resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists

1.51±0.11 Earth radius

1 reference

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

1.49±0.15 Earth radius

1 reference

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

0.14 Jupiter radius

1 reference

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

3 references