Planet GJ 3473 Ab

Detailed information about planet GJ 3473 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

GJ 3473 Ab

Planet Status

Confirmed

Discovered in

2020

Publication Status

Published in a refereed paper

Update

2025-03-12

Mass

0.00585 (\pm 0.0009)

M_J 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Mass*sin(i)

—

Semi-Major Axis

0.01589 (\pm 0.00062)

AU 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Orbital Period

1.1980035 (\pm 1.9e-06)

day 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Eccentricity

0.0 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Angular distance

—

ω

—

T_peri

—

Radius

0.11277 (\pm 0.00045)

R_J 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Inclination

87.95 (\pm 0.047)

deg 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Detection Method

Primary Transit

Mass Meas. Method

Radial Velocity

Radius Meas. Method

Primary Transit

Primary transit

2458492.20408 (\pm 0.00043)

JD 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

2.21 (\pm 0.35)

m/s 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Calculated temperature

773.0 (\pm 16.0)

K 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

TOI-488 b, TOI-488.01

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

See also the specific Planets in Binaries webpage.

No link

Star

Name

GJ 3473 A

Distance

27.39 (\pm 0.04)

pc 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Spectral type

M4V

Apparent magnitude V

13.0

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.36 (\pm 0.016)

M_Sun 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Age

—

Effective temperature

3347.0 (\pm 54.0)

K 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Radius

0.364 (\pm 0.012)

R_Sun 1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Metallicity [Fe/H]

0.11 (\pm 0.19)

1 publication

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

08:02:23.0

Dec₂₀₀₀

+03:20:20.0

Alternate Names

TOI-488, TOI-488 A

GJ 3473 forms a widely separated (a = 1346 AUs) binary system with GJ 3474 (or LP 544-12, spT M6V).

No link

Simbad
Most recent references (ADS)

Planet GJ 3473 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 2 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Planet GJ 3473 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 2 planets

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

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Gaia search for stellar companions of TESS Objects of Interest

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)