Planet HD 105811 Ab

Detailed information about planet HD 105811 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HD 105811 Ab

Mass

55.534 (\begin{matrix} + 13.075 \\ - 11.899 \end{matrix})

M_J 1 publication

3D Selection of 167 Substellar Companions to Nearby Stars

Mass*sin(i)

—

Semi-Major Axis

2.699 (\begin{matrix} + 0.054 \\ - 0.052 \end{matrix})

AU 1 publication

3D Selection of 167 Substellar Companions to Nearby Stars

Orbital Period

1175.3 (\begin{matrix} + 6.9 \\ - 7.1 \end{matrix})

day 1 publication

3D Selection of 167 Substellar Companions to Nearby Stars

Eccentricity

0.766 (\begin{matrix} + 0.071 \\ - 0.045 \end{matrix})

1 publication

3D Selection of 167 Substellar Companions to Nearby Stars

ω

109.484 (\begin{matrix} + 10.604 \\ - 4.319 \end{matrix})

deg 1 publication

3D Selection of 167 Substellar Companions to Nearby Stars

T_peri

—

Radius

—

Inclination

0.474 (\begin{matrix} + 0.177 \\ - 0.075 \end{matrix})

deg 1 publication

3D Selection of 167 Substellar Companions to Nearby Stars

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

8.987 (\begin{matrix} + 2.523 \\ - 0.056 \end{matrix})

m/s 1 publication

3D Selection of 167 Substellar Companions to Nearby Stars

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Surface gravity log(g/g_H)

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Orbits of HD 105811 Ab and companion star HD 105811 B appear misaligned but concerns about orbital stability are raised by discoverers themselves (Feng et al. 2022).

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Star

Name

HD 105811 A

Distance

122.125 (\pm 0.9975)

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

K0III-IV

Apparent magnitude V

7.48

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

—

Age

—

Effective temperature

4934.0 (\pm 25.0)

Radius

5.49 R_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Metallicity [Fe/H]

0.1 (\pm 0.1)

1 publication

The Revised TESS Input Catalog and Candidate Target List

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

12:10:48.3

Dec₂₀₀₀

-09:23:50.0

Alternate Names

—

Feng et al. (2022): HD 105811 forms a close-in binary system with an M dwarf star just 4.57 AUs away, whose separation and high eccentricity (e = 0.608) disrupt the Habitable Zone in addition to the evolution itself of the host star out of the Main Sequence.

No link