Temperature
3515 K
3396 to 3732
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Stellar HostProfile
KOI-4777
Unclassified star • 172.2 pc
Records
9
literature rows
Planets
1
system count
References
8
distinct source labels
TIC: TIC 158427808
Approximate color
from effective temperature
Canonical Summary
Adopted host values from one source row
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Cañas et al. 2022 • System source: TICv8
Mass
0.41 Msun
0.28 to 0.41
Radius
0.40 Rsun
0.28 to 0.77
Age
4 Gyr
single adopted value
Distance
172.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.40 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
KOI-4777
0.40 R☉
System Layout
Known planets
1 planets linked to this host
KOI-4777.01
Transit
◌
Discovery
2022
Period
0.41 days
Radius
0.51 R⊕
Mass
99.20 M⊕
Eq. Temp
1180 K
KOI-4777 and Its Sub-Earth Planet
KOI-4777 is a star 562 light-years away with a single known planet. The star is estimated to be 4 billion years old, with a reported mass of 0.41 solar masses and a radius of 0.4 solar radii. Its temperature is 3520 K. The star's reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.
The planet KOI-4777.01 was discovered by transit in 2022, when it passed in front of its star from our viewpoint and caused a small dip in observed brightness. It is classified as a Sub-Earth, meaning its radius is smaller than Earth's, and its reported radius estimate of 0.51 Earth radii reflects that. It completes an orbit, or year, in 0.412 days. Its mass is reported as an upper limit of 99.2 Earth masses.
Provenance
Underlying measurements and references
Evidence Summary
Rows
9
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositystable
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 172.2 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 3527 | 0.40 | 0.41 | — | -1.64 | — | 172.2 | TICv8 | TICv8 |
| 3732 | — | 0.77 | — | — | — | 172.2 | Latham et al. 2005 | TICv8 |
| 3396 | 0.28 | 0.28 | — | — | — | 172.2 | Q1-Q17 DR24 KOI Table | TICv8 |
| — | — | — | — | — | — | 172.2 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 3515 | 0.41 | 0.40 | 4 | — | — | 172.2 | Cañas et al. 2022 | TICv8 |
| 3396 | 0.28 | 0.28 | — | — | — | 172.2 | Q1-Q12 KOI Table | TICv8 |
| 3396 | 0.28 | 0.28 | — | — | — | 172.2 | Q1-Q16 KOI Table | TICv8 |
| 3396 | 0.28 | 0.28 | — | — | — | 172.2 | Q1-Q16 KOI Table | TICv8 |