GJ 3470 b

GJ 3470 b / Phailinsiam
Size comparison of Phailinsiam with Earth.
Discovery[1]
Discovered byX. Bonfils et al.
Discovery date2012
Radial velocity
Designations
Phailinsiam[2]
Orbital characteristics[3]
0.0355±0.0019 AU
Eccentricity0.114+0.052
−0.051[4]
3.33665240(14) d[5]
Inclination89.13°+0.26°
−0.34°
StarGJ 3470
Physical characteristics[3]
4.57±0.18 R🜨
Mass13.9±1.5 M🜨
Mean density
0.80±0.13 g/cm3
Temperature615±16 K[4]

GJ 3470 b (occasionally Gliese 3470 b, formally named Phailinsiam[2]) is an exoplanet orbiting the star GJ 3470, located in the constellation Cancer. With a mass of just under 14 Earth-masses, a radius approximately 4.3 times that of Earth's, and a high equilibrium temperature of 615 K (342 °C; 647 °F),[4] it is a hot Neptune.

The orbit of GJ 3470 b is strongly inclined to the equatorial plane of the parent star, with misalignment equal to 97+16
−11°.[6]

  1. ^ Cite error: The named reference Bonfils2012 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference NEW2022 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Awiphan2016 was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Kosiarek2019 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Kokori2023 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Stefansson2022 was invoked but never defined (see the help page).