Temperature
5997.6 K
5997.6 to 6355
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Stellar HostProfile
KOI-3503
Unclassified star • 887.1 pc
Records
12
literature rows
Planets
2
system count
References
10
distinct source labels
TIC: TIC 138097784
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: TICv8 • System source: TICv8
Mass
1.11 Msun
0.86 to 1.11
Radius
1.31 Rsun
0.85 to 1.31
Luminosity
0.30 log(Lsun)
single adopted value
Distance
887.1 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.31 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
KOI-3503
1.31 R☉
System Layout
Known planets
2 planets linked to this host
KOI-3503 b
Transit
◌
Discovery
2021
Period
21.18 days
Radius
1.19 R⊕
Mass
9.20 M⊕
Eq. Temp
785 K
KOI-3503 c
Transit
◌
Discovery
2021
Period
31.83 days
Radius
1.21 R⊕
Mass
10.36 M⊕
Eq. Temp
686 K
KOI-3503 and Its Two Earth-Like Planets
KOI-3503 is a star 2890 light-years away with a reported mass of 1.11 solar masses, a radius of 1.31 solar radii, and a temperature of 6000 K, making it larger, more massive, and hotter than the Sun. It hosts two planets, KOI-3503 b and KOI-3503 c, both classified as Earth-like and both discovered by transit in 2021.
KOI-3503 b has a reported upper limit of 9.2 Earth masses, a radius of 1.19 Earth radii, and an orbital period of 21.2 days. KOI-3503 c has a reported upper limit of 10.36 Earth masses, a radius of 1.21 Earth radii, and an orbital period of 31.8 days. Among the listed planets, KOI-3503 b has the shortest year and the smallest radius, while KOI-3503 c has the longest year and the largest radius; its radius is also larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
9
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 |
|---|---|---|---|---|---|---|---|---|
| 6001 | 0.86 | 1.25 | 11.48 | — | — | 887.1 | Fulton & Petigura 2018 | TICv8 |
| 6338 | 0.92 | 0.85 | — | — | — | 887.1 | Q1-Q16 KOI Table | TICv8 |
| 6119 | — | 0.91 | — | — | — | 887.1 | Latham et al. 2005 | TICv8 |
| 6001 | 0.86 | 1.25 | — | — | — | 887.1 | Jontof-Hutter et al. 2021 | TICv8 |
| 6338 | 0.92 | 0.85 | — | — | — | 887.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| 6355 | 0.93 | 0.85 | — | — | — | 887.1 | Q1-Q17 DR25 KOI Table | TICv8 |
| 6338 | 0.92 | 0.85 | — | — | — | 887.1 | Q1-Q12 KOI Table | TICv8 |
| 6338 | 0.92 | 0.85 | — | — | — | 887.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| — | — | — | — | — | — | 887.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| — | — | — | — | — | — | 887.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 6338 | 0.92 | 0.85 | — | — | — | 887.1 | Q1-Q16 KOI Table | TICv8 |
| 5997.6 | 1.11 | 1.31 | — | 0.30 | — | 887.1 | TICv8 | TICv8 |