Planet Kepler-1977 Bb

Detailed information about planet Kepler-1977 Bb and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

Kepler-1977 Bb

Planet Status

Confirmed

Discovered in

2017

Publication Status

Announced on a website

Update

2025-09-09

Mass

—

Mass*sin(i)

—

Semi-Major Axis

0.0486 AU 1 publication

Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25

Orbital Period

4.537000179 day 1 publication

Multiplicity Boost Of Transit Signal Classifiers: Validation of 69 New Exoplanets Using The Multiplicity Boost of ExoMiner

Eccentricity

0.0 1 publication

Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25

Angular distance

—

ω

—

T_peri

—

Radius

0.1624

R_J 1 publication

Multiplicity Boost Of Transit Signal Classifiers: Validation of 69 New Exoplanets Using The Multiplicity Boost of ExoMiner

Inclination

87.14 deg 1 publication

Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25

Detection Method

Primary Transit

Mass Meas. Method

—

Radius Meas. Method

Primary Transit

Primary transit

2454965.188 (\begin{matrix} + 2454833.0041 \\ - 2454832.9959 \end{matrix})

Secondary transit

—

λ

—

Impact Parameter b

0.706 (\begin{matrix} + 0.058 \\ - 0.491 \end{matrix})

1 publication

Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

798.0 K 1 publication

Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

KOI-3145 b, KOI-3145.01

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Star

Name

Kepler-1977 B

Distance

592.711 (\pm 12.3435)

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

K4.5V

Apparent magnitude V

16.047

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.73 M_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Age

1.3 (\pm 3.8)

Gyr 1 publication

Planetary Candidates Observed by Kepler IV: Planet Sample From Q1-Q8 (22 Months)

Effective temperature

4606.75 (\pm 110.59)

K 1 publication

The Revised TESS Input Catalog and Candidate Target List

Radius

0.706 R_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Metallicity [Fe/H]

-0.246 (\pm 0.0145)

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

19:22:28.3

Dec₂₀₀₀

+37:17:20.7

Alternate Names

KIC 1717722, KOI-3145

Eeles-Nolle & Armstrong (2025): A slightly brighter companion, likely a K dwarf (Gaia DR3 2051027792165858688, G = 15.47), lies 5.73 arcseconds away (3,400 AUs at 593 pc) making "Kepler-1977" the secondary component of a widely separated binary system.

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