Temperature
3249.5 K
3068 to 4188
M • 40.06 pc
Records
30
literature rows
Planets
3
system count
References
18
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
3249.5 K
3068 to 4188
Mass
0.13 Msun
0.13 to 0.62
Radius
0.17 Rsun
0.15 to 0.68
Age
4.81 Gyr
4.50 to 5.13
Luminosity
-2.52 log(Lsun)
-2.62 to -2.45
Distance
40.06 pc
single adopted value
Spectral Type
M
Multiple classifications reported
Planets
3
Stable across source rows
Scale Comparison
Current adopted radius: 0.17 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
Kepler-42
0.17 R☉
System Layout
3 planets linked to this host
Transit
Discovery
2011
Period
0.45 days
Radius
0.92 R⊕
Mass
—
Eq. Temp
733 K
Transit
Discovery
2011
Period
—
Radius
0.96 R⊕
Mass
—
Eq. Temp
—
Transit
Discovery
2011
Period
—
Radius
0.77 R⊕
Mass
—
Eq. Temp
—
Provenance
Evidence Summary
Rows
30
Stellar refs
17
System refs
1