Temperature
5596 K
5596 to 5640
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Stellar HostProfile
HD 20329
Unclassified star • 63.68 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 333657795HD: HD 20329HIP: HIP 15249
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: Murgas et al. 2022 • System source: TICv8
Mass
0.90 Msun
0.90 to 1
Radius
1.13 Rsun
1.11 to 1.13
Age
11 Gyr
single adopted value
Luminosity
0.05 log(Lsun)
0.05 to 0.05
Distance
63.68 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.13 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 20329
1.13 R☉
System Layout
Known planets
1 planets linked to this host
HD 20329 b
Transit
◌
Discovery
2022
Period
0.93 days
Radius
1.72 R⊕
Mass
7.42 M⊕
Eq. Temp
2141 K
HD 20329 and Its Super-Earth
HD 20329 is a star 208 light-years from us. It is 11 billion years old, has 0.9 solar masses, 1.13 solar radii, and a temperature of 5600 K. Its reported mass estimate is smaller than the Sun's, its reported radius estimate is larger than the Sun's, and its reported temperature is cooler than the Sun's. One planet orbits this host.
That planet is HD 20329 b, a Super-Earth discovered by transit in 2022. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. HD 20329 b has a mass of 7.42 Earth masses and a radius of 1.72 Earth radii, larger than Earth in both respects. Its orbital period is 0.926 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed