Temperature
4640 K
4510 to 4646.2
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Stellar HostProfile
HIP 57274
K4 V • 25.86 pc
Records
7
literature rows
Planets
3
system count
References
8
distinct source labels
TIC: TIC 5078530HIP: HIP 57274
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: Fischer et al. 2012 • System source: TICv8
Mass
0.73 Msun
0.29 to 0.77
Radius
0.68 Rsun
0.68 to 0.80
Age
7.87 Gyr
single adopted value
Luminosity
0.19 log(Lsun)
-0.65 to 0.19
Distance
25.86 pc
single adopted value
Spectral Type
K4 V
Multiple classifications reported
Planets
3
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.68 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HIP 57274
0.68 R☉
System Layout
Known planets
3 planets linked to this host
HIP 57274 b
Radial Velocity
◌
Discovery
2011
Period
8.14 days
Radius
—
Mass
6.36 M⊕
Eq. Temp
—
HIP 57274 c
Radial Velocity
◌
Discovery
2011
Period
32.03 days
Radius
—
Mass
130 M⊕
Eq. Temp
—
HIP 57274 d
Radial Velocity
◌
Discovery
2011
Period
431.7 days
Radius
—
Mass
167.4 M⊕
Eq. Temp
—
Planets of HIP 57274
HIP 57274 is a K4 V star 84.3 light-years away with three known planets. The star is 7.87 billion years old and has a mass of 0.73 solar masses.
HIP 57274 b, discovered in 2011 by radial velocity, has a minimum mass of 6.36 Earth masses and an orbital period of 8.14 days. HIP 57274 c has a minimum mass of 130 Earth masses and an orbital period of 32 days. HIP 57274 d has a minimum mass of 167 Earth masses and an orbital period of 432 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4510 | 0.71 | 0.80 | — | -0.62 | — | 25.86 | TICv8 | TICv8 |
| 4510 | 0.29 | 0.78 | — | — | — | 25.86 | Stassun et al. 2017 | TICv8 |
| — | — | — | — | — | K4 V | 25.86 | Gray et al. 2003 | TICv8 |
| 4640 | 0.73 | 0.68 | 7.87 | 0.19 | K4 V | 25.86 | Fischer et al. 2012 | TICv8 |
| 4576 | 0.69 | 0.77 | — | -0.64 | K8 | 25.86 | Turnbull 2015 | TICv8 |
| 4646.2 | — | 0.73 | — | -0.65 | — | 25.86 | Gaia DR2 | TICv8 |
| 4510 | 0.77 | — | — | — | — | 25.86 | Santos et al. 2013 | TICv8 |