Temperature
6100 K
6100 to 6316.5
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Stellar HostProfile
WASP-78
Unclassified star • 754.3 pc
Records
8
literature rows
Planets
1
system count
References
9
distinct source labels
TIC: TIC 139528693
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: Brown et al. 2017 • System source: TICv8
Mass
1.39 Msun
1.18 to 1.87
Radius
2.35 Rsun
1.49 to 2.46
Age
2.80 Gyr
2.80 to 4.90
Distance
754.3 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 2.35 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
WASP-78
2.35 R☉
System Layout
Known planets
1 planets linked to this host
WASP-78 b
Transit
◌
Discovery
2012
Period
2.18 days
Radius
21.63 R⊕
Mass
352.8 M⊕
Eq. Temp
—
WASP-78 and Its Giant Planet
WASP-78 is a star located 2460 light-years away, and one planet orbits it. The star is 2.8 billion years old and has a mass of 1.39 solar masses, a radius of 2.35 solar radii, and a temperature of 6100 K. Its mass and radius are larger than the Sun's, and its temperature is hotter than the Sun's.
WASP-78 b is a Jupiter-like planet discovered by transit in 2012. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. The planet's radius of 21.6 Earth radii is larger than Earth's, and its radius exceeds four times Earth's, placing it in the Jupiter-like size class. Its orbital period is 2.18 days. WASP-78 b has a mass of 353 Earth masses, larger than Earth's, and a mean density of 0.192 g/cm³, 0.0348 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
8
Stellar refs
8
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 6291 | 1.23 | 2.06 | — | 0.78 | — | 754.3 | TICv8 | TICv8 |
| 6100 | 1.87 | 2.46 | — | — | — | 754.3 | Stassun et al. 2017 | TICv8 |
| 6100 | 1.33 | 2.20 | — | — | — | 754.3 | Smalley et al. 2012 | TICv8 |
| 6100 | 1.18 | 2.09 | 4.90 | — | — | 754.3 | Bonomo et al. 2017 | TICv8 |
| 6291 | — | 2.06 | — | — | — | 754.3 | ExoFOP | TICv8 |
| 6316.5 | — | 2.01 | — | 0.76 | — | 754.3 | Gaia DR2 | TICv8 |
| 6100 | 1.39 | 2.35 | 2.80 | — | — | 754.3 | Brown et al. 2017 | TICv8 |
| 6291 | 1.24 | 1.49 | — | — | — | 754.3 | Mortier et al. 2013 | TICv8 |