Planet K2-38 d

Detailed information about planet K2-38 d and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

K2-38 d

Planet Status

Candidate

Discovered in

2020

Update

2020-07-03

Mass

1.6 (\pm 1.5)

M_J

Mass*sin(i)

1.6 (\pm 1.5)

M_J 1 publication

Characterization of the K2-38 planetary system. Unraveling one of the densest planets known to date

Semi-Major Axis

—

Orbital Period

753.0 (\pm 36.0)

day 1 publication

Characterization of the K2-38 planetary system. Unraveling one of the densest planets known to date

Eccentricity

—

ω

—

T_peri

—

Radius

—

Inclination

—

Detection Method

Radial Velocity

Mass Meas. Method

Radial Velocity

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

9.3 (\pm 1.7)

m/s 1 publication

Characterization of the K2-38 planetary system. Unraveling one of the densest planets known to date

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

No remarks

No link

Star

Name

K2-38

Distance

192.69 (\begin{matrix} + 2.669 \\ - 2.597 \end{matrix})

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

G3V

Apparent magnitude V

11.4

Mass

1.054 (\begin{matrix} + 0.07 \\ - 0.063 \end{matrix})

M_Sun 1 publication

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Age

6.1 (\begin{matrix} + 3.4 \\ - 3.1 \end{matrix})

Gyr 1 publication

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Effective temperature

5705.0 (\pm 66.0)

K 1 publication

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Radius

1.141 (\pm 0.12)

R_Sun 1 publication

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Metallicity [Fe/H]

0.235 (\pm 0.07)

1 publication

Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

16:00:08.1

Dec₂₀₀₀

-23:11:21.4

Alternate Names

WISE J160008.01-231121.6, EPIC 204221263, TYC 6779-268-1, 2MASS J16000805-2311213

A very faint candidate companion, either a brown dwarf or a very low-mass late M dwarf star, is detected 1.378 ±000.014 arcseconds away (265 AUs for d = 192.7 pc). The probability that the candidate companion is a background object is 1.59% but more observations are required to confirm physical association (Bohn et al. 2020).

No link