Temperature
5734 K
5734 to 5778.2
←Back to Stellar Hosts
Stellar HostProfile
TOI-1820
Unclassified star • 248.5 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 393831507
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: Knudstrup et al. 2022 • System source: TICv8
Mass
1.04 Msun
1.04 to 1.04
Radius
1.51 Rsun
1.40 to 1.51
Age
11 Gyr
single adopted value
Distance
248.5 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.51 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
TOI-1820
1.51 R☉
System Layout
Known planets
1 planets linked to this host
TOI-1820 b
Transit
◌
Discovery
2022
Period
4.86 days
Radius
12.78 R⊕
Mass
731.0 M⊕
Eq. Temp
1375 K
TOI-1820: A Distant Star With a Single Known Planet
TOI-1820 is a star 811 light-years away with an age of 11 billion years, a mass of 1.04 solar masses, a radius of 1.51 solar radii, and a temperature of 5730 K. Its reported radius estimate is larger than the Sun's. One planet has been found in orbit around TOI-1820.
That planet is TOI-1820 b, a Jupiter-like world discovered in 2022 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Its radius is 12.8 Earth radii, larger than Earth's, and its mass is 731 Earth masses, also larger than Earth's and roughly 2.3 times Jupiter's mass. Its mean density is 1.93 g/cm³, 0.35 times Earth's. TOI-1820 b completes an orbit every 4.86 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositystable
Surface Gravitydisputed
Metallicitydisputed