Temperature
5500 K
5192.2 to 5682
Unclassified star • 740.5 pc
Records
22
literature rows
Planets
3
system count
References
11
distinct source labels
Approximate color
from effective temperature
Canonical Summary
Numeric fields use the median of non-null measurements. Disagreement stays visible through ranges, counts, and provenance.
Temperature
5500 K
5192.2 to 5682
Mass
0.71 Msun
0.71 to 0.94
Radius
0.68 Rsun
0.68 to 1.15
Age
0.50 Gyr
0.50 to 3.98
Distance
740.5 pc
single adopted value
Planets
3
Stable across source rows
Scale Comparison
Current adopted radius: 0.68 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
Kepler-399
0.68 R☉
System Layout
3 planets linked to this host
Transit
Discovery
2014
Period
26.68 days
Radius
2.40 R⊕
Mass
—
Eq. Temp
544 K
Transit
Discovery
2014
Period
14.43 days
Radius
—
Mass
—
Eq. Temp
—
Transit
Discovery
2014
Period
58.03 days
Radius
1.96 R⊕
Mass
—
Eq. Temp
392 K
Provenance
Evidence Summary
Rows
22
Stellar refs
10
System refs
1