Temperature
7422 K
7190.1 to 7422
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Stellar HostProfile
51 Eri
Unclassified star • 29.76 pc
Records
10
literature rows
Planets
1
system count
References
11
distinct source labels
HIP: HIP 21547TIC: TIC 298810162HD: HD 29391
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: Elliott et al. 2024 • System source: TICv8
Mass
1.55 Msun
1.55 to 1.75
Radius
1.45 Rsun
1.45 to 1.56
Age
0.02 Gyr
0.02 to 0.02
Luminosity
0.76 log(Lsun)
0.75 to 0.85
Distance
29.76 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.45 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
51 Eri
1.45 R☉
System Layout
Known planets
1 planets linked to this host
51 Eri b
Imaging
◌
Discovery
2015
Period
9100 days
Radius
—
Mass
3464.3 M⊕
Eq. Temp
—
51 Eri and Its Young Planet
51 Eri is a star 97.1 light-years away with one known planet in orbit. Its spectrum is F0V, and at 0.0232 billion years old it is a very young star. The star is more massive than the Sun at 1.55 solar masses and also larger at 1.45 solar radii, and its temperature of 7420 K is hotter than the Sun's.
The one planet orbiting this star is 51 Eri b, discovered in 2015 by imaging. It has a reported upper limit of 3464.3296363 Earth masses and an orbital period of 9100 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Stellar refs
10
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 7276 | — | — | — | — | — | 29.76 | Swastik et al. 2021 | TICv8 |
| 7190.1 | — | 1.56 | — | 0.77 | — | 29.76 | Gaia DR2 | TICv8 |
| — | 1.75 | — | 0.02 | 0.85 | F0 IV | 29.76 | Macintosh et al. 2015 | TICv8 |
| — | 1.75 | — | — | — | — | 29.76 | Dupuy et al. 2022 | TICv8 |
| 7257 | 1.57 | 1.52 | — | 0.76 | F0V | 29.76 | Turnbull 2015 | TICv8 |
| 7295 | 1.65 | 1.49 | — | 0.75 | — | 29.76 | TICv8 | TICv8 |
| — | — | — | — | — | — | 29.76 | Reiners & Schmitt 2003b | TICv8 |
| — | — | — | — | — | A5 | 29.76 | Cannon & Pickering 1918 | TICv8 |
| 7422 | 1.55 | 1.45 | 0.02 | 0.76 | — | 29.76 | Elliott et al. 2024 | TICv8 |
| — | — | — | — | — | F0 V | 29.76 | Michigan Catalog, Vol. 5 | TICv8 |