Planet HAT-P-45 Ab

Detailed information about planet HAT-P-45 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HAT-P-45 Ab

Planet Status

Confirmed

Discovered in

2013

Publication Status

—

Update

2025-12-02

Mass

0.892 (\begin{matrix} + 0.137 \\ - 0.099 \end{matrix})

M_J 1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Mass*sin(i)

—

Semi-Major Axis

0.0452 (\pm 0.0007)

AU 1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Orbital Period

3.128992 (\pm 1e-05)

day 1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Eccentricity

0.049 (\pm 0.063)

1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Angular distance

—

ω

—

T_peri

—

Radius

1.426 (\begin{matrix} + 0.175 \\ - 0.087 \end{matrix})

R_J 1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Inclination

87.8 (\pm 0.9)

deg 1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Detection Method

Primary Transit

Mass Meas. Method

—

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

TOI-7055.01

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

1 Sep 2025: See also Planets in Binaries webpage.

No link

Star

Name

HAT-P-45 A

Distance

305.0 (\begin{matrix} + 35.0 \\ - 17.0 \end{matrix})

pc 1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Spectral type

F7V

Apparent magnitude V

12.794

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.259 (\pm 0.058)

M_Sun 1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Age

2.0 (\pm 0.8)

Gyr 1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Effective temperature

6330.0 (\pm 100.0)

K 1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Radius

1.319 (\begin{matrix} + 0.155 \\ - 0.072 \end{matrix})

R_Sun 1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Metallicity [Fe/H]

0.07 (\pm 0.1)

1 publication

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

18:17:30.0

Dec₂₀₀₀

-03:22:52.0

Alternate Names

—

Eeles-Nolle & Armstrong (2025): A faint companion star, a very low-mass M dwarf or even a white dwarf (Gaia DR3 4270547520708665600, G = 20.4), lies 28.76 arcseconds away (8,770 AUs at 305 pc).

No link

Simbad
Most recent references (ADS)

Planet HAT-P-45 Ab

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Planet HAT-P-45 Ab

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

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Ephemeris refinement of 21 Hot Jupiter exoplanets with high timing uncertainties

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems