Planet HD 9446 d

Detailed information about planet HD 9446 d and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HD 9446 d

Planet Status

Candidate

Discovered in

2020

Update

2024-10-08

Mass

1.5

M_J 1 publication

Searching for substellar companion candidates with Gaia. II. A catalog of 9,698 planet candidate solar-type hosts

Mass*sin(i)

—

Semi-Major Axis

7.0 AU 1 publication

Searching for substellar companion candidates with Gaia. II. A catalog of 9,698 planet candidate solar-type hosts

Orbital Period

—

Eccentricity

—

ω

—

T_peri

—

Radius

—

Inclination

—

Detection Method

Astrometry

Mass Meas. Method

Astrometry

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

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

Hill et al. (2020) reported a linear trend in radial velocities of HD 9446 compatible with the presence of an additional planet in the system but provided no further elements. Kiefer et al. (2024b) did it but with a rather broad range in mass and separation estimate.

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