Temperature
5587 K
5474.5 to 5593
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Stellar HostProfile
HATS-57
Unclassified star • 279.5 pc
Records
4
literature rows
Planets
1
system count
References
5
distinct source labels
TIC: TIC 178289267
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: Espinoza et al. 2019 • System source: TICv8
Mass
1.03 Msun
0.99 to 1.03
Radius
0.96 Rsun
0.96 to 1.00
Age
2.50 Gyr
single adopted value
Luminosity
-0.09 log(Lsun)
-0.09 to -0.08
Distance
279.5 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.96 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HATS-57
0.96 R☉
System Layout
Known planets
1 planets linked to this host
HATS-57 b
Transit
◌
Discovery
2019
Period
2.35 days
Radius
12.77 R⊕
Mass
1000.2 M⊕
Eq. Temp
1413.4 K
HATS-57 b: A Jupiter-Like World in a Close Orbit
HATS-57 is a star located 912 light-years away. It has a mass of 1.03 solar masses and a radius of 0.96 solar radii, smaller than the Sun's. Its temperature is 5590 K, cooler than the Sun's, and its age is 2.5 billion years. One planet orbits this host.
That planet is HATS-57 b, a Jupiter-like world discovered by transit in 2019. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. HATS-57 b has a mass of 1000 Earth masses, roughly 3.15 times Jupiter's mass and larger than Earth's. Its radius is 12.8 Earth radii, also larger than Earth's. It completes an orbit every 2.35 days. Its mean density is 2.65 g/cm³, 0.481 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitystable