Planet K2-8 b

Detailed information about planet K2-8 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

K2-8 b

Planet Status

Confirmed

Discovered in

2015

Update

2024-08-16

Mass

—

Mass*sin(i)

—

Semi-Major Axis

0.0856 (\pm 0.0012)

AU 1 publication

Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 17 Systems, Including a Planet Receiving Earth-like Insolation

Orbital Period

10.35239 (\pm 0.00086)

day 2 publications

Eleven Multi-planet Systems from K2 Campaigns 1 & 2 and the Masses of Two Hot Super-Earths
Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 17 Systems, Including a Planet Receiving Earth-like Insolation

Eccentricity

—

ω

—

T_peri

—

Radius

0.319 (\begin{matrix} + 0.063 \\ - 0.063 \end{matrix})

R_J 2 publications

Eleven Multi-planet Systems from K2 Campaigns 1 & 2 and the Masses of Two Hot Super-Earths
Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 17 Systems, Including a Planet Receiving Earth-like Insolation

Inclination

86.42 (\begin{matrix} + 2.56 \\ - 1.37 \end{matrix})

deg 1 publication

Eleven Multiplanet Systems from K2 Campaigns 1 and 2 and the Masses of Two Hot Super-Earths

Detection Method

Primary Transit

Mass Meas. Method

—

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

0.88 (\begin{matrix} + 0.04 \\ - 0.36 \end{matrix})

1 publication

Eleven Multiplanet Systems from K2 Campaigns 1 and 2 and the Masses of Two Hot Super-Earths

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

631.0 K 1 publication

Eleven Multi-planet Systems from K2 Campaigns 1 & 2 and the Masses of Two Hot Super-Earths

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

WISE J111910.45-001703.8 b, EPIC 201445392 b, EPIC 201445392.01, 2MASS J11191047-0017036 b

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Sinukoff et al. compute the equilibrium temperature assuming an albedo of 0.3.

No link

Star

Name

K2-8

Distance

407.93 (\begin{matrix} + 11.83 \\ - 11.83 \end{matrix})

Spectral type

K2V

Apparent magnitude V

14.384

Mass

0.78 (\pm 0.02)

M_Sun 1 publication

Scaling K2. VI. Reduced Small-planet Occurrence in High-galactic-amplitude Stars

Age

6.92 (\begin{matrix} + 6.36 \\ - 4.69 \end{matrix})

Gyr 1 publication

Scaling K2. VI. Reduced Small-planet Occurrence in High-galactic-amplitude Stars

Effective temperature

4846.0 (\pm 100.0)

K 1 publication

Scaling K2. VI. Reduced Small-planet Occurrence in High-galactic-amplitude Stars

Radius

0.75 (\begin{matrix} + 0.03 \\ - 0.02 \end{matrix})

R_Sun 2 publications

Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 17 Systems, Including a Planet Receiving Earth-like Insolation
Scaling K2. VI. Reduced Small-planet Occurrence in High-galactic-amplitude Stars

Metallicity [Fe/H]

0.02 (\pm 0.06)

1 publication

Scaling K2. VI. Reduced Small-planet Occurrence in High-galactic-amplitude Stars

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

11:19:10.5

Dec₂₀₀₀

-00:17:03.8

Alternate Names

EPIC 201445392, 2MASS J11191047-0017036, WISE J111910.45-001703.8

No remarks

No link

Simbad
Most recent references (ADS)

Planet K2-8 b

Planet

Basic informations 28 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 13 parameters

Planetary system 2 planets

Remarks No remark

Other web pages No page

More data 2 references

Planet K2-8 b

Planet

Basic informations 28 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 13 parameters

Planetary system 2 planets

Remarks No remark

Other web pages No page

More data 2 references

Related publications

Scaling K2. VI. Reduced Small-planet Occurrence in High-galactic-amplitude Stars

Eleven Multiplanet Systems from K2 Campaigns 1 and 2 and the Masses of Two Hot Super-Earths

197 Candidates and 104 Validated Planets in K2’s First Five Fields

Eleven Multi-planet Systems from K2 Campaigns 1 & 2 and the Masses of Two Hot Super-Earths

Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 17 Systems, Including a Planet Receiving Earth-like Insolation