Temperature
5252 K
5081 to 5252
Unclassified star • 865.5 pc
Records
12
literature rows
Planets
1
system count
References
11
distinct source labels
Approximate color
from effective temperature
Canonical Summary
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Q1-Q12 KOI Table • System source: TICv8
Temperature
5252 K
5081 to 5252
Mass
0.88 Msun
0.82 to 0.88
Radius
0.78 Rsun
0.59 to 0.89
Distance
865.5 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Current adopted radius: 0.78 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-1978
0.78 R☉
System Layout
1 planets linked to this host
Transit
Discovery
2023
Period
10.85 days
Radius
2.67 R⊕
Mass
—
Eq. Temp
676 K
Kepler-1978 is a star 2820 light-years away with one known planet in orbit. The host star has a mass of 0.875 solar masses, a radius of 0.779 solar radii, and a temperature of 5250 K. Each of these values is smaller or cooler than the Sun's corresponding property.
The system's only cataloged planet is Kepler-1978 b, a Neptune-like world discovered by transit in 2023. A transit occurs when a planet crosses in front of its star from our viewpoint, producing a small dip in brightness; repeated dips help establish orbital periods. Kepler-1978 b completes an orbit every 10.8 days and has a radius of 2.67 Earth radii, larger than Earth's.
Provenance
Evidence Summary
Rows
12
Stellar refs
10
System refs
1
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 865.5 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5214 | 0.82 | 0.72 | 0.60 | — | — | 865.5 | Q1-Q8 KOI Table | TICv8 |
| 5081 | — | 0.59 | — | — | — | 865.5 | Latham et al. 2005 | TICv8 |
| 5252 | 0.88 | 0.78 | — | — | — | 865.5 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5251 | 0.87 | 0.78 | — | — | — | 865.5 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5081 | — | 0.73 | — | — | — | 865.5 | Q1-Q6 KOI Table | TICv8 |
| 5252 | 0.88 | 0.78 | — | — | — | 865.5 | Q1-Q16 KOI Table | TICv8 |
| 5251 | 0.87 | 0.78 | — | — | — | 865.5 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5081 | 0.82 | 0.73 | — | — | — | 865.5 | Batalha et al. 2013 | TICv8 |
| — | — | — | — | — | — | 865.5 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5252 | 0.88 | 0.78 | — | — | — | 865.5 | Q1-Q12 KOI Table | TICv8 |
| 5155 | 0.87 | 0.89 | — | -0.30 | — | 865.5 | TICv8 | TICv8 |