(Q113592501)

mass

0.0179±0.0135 Jupiter mass

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

catalog code

TOI-2257b

catalog

TESS Object of Interest

2 references

Transiting Exoplanet Survey Satellite

TOI-2257.01

catalog

TESS Object of Interest

1 reference

TIC 198485881b

1 reference

TIC 198485881.01

1 reference

discoverer or inventor

0 references

time of discovery or invention

2 November 2021

0 references

January 2022

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

2 references

inferred from equatorial coordinates

constellation

Camelopardalis

1 reference

based on heuristic

parent astronomical body

3 references

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

object stated in reference as

TOI-2257

object stated in reference as

TOI-2257

argument of periapsis

−101.674±42.453 degree

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

258±42 degree

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

orbital eccentricity

0.496±0.216

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

orbital inclination

89.786±0.078 degree

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

orbital period

35.189346±0.00009 day

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

semi-major axis of an orbit

0.145±0.003 astronomical unit

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

radius

2.194±0.113 Earth radius

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

0.19574±0.0098 Jupiter radius

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

3 references

right ascension

194.7396141 degree

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

declination

77.6617157 degree

1 reference

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf