Temperature
3460 K
3441 to 3529.6
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Stellar HostProfile
USco1621 A
M2.5 V • 137.9 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 322928241
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: Chinchilla et al. 2020 • System source: TICv8
Mass
0.36 Msun
0.36 to 0.42
Age
7.50e-3 Gyr
single adopted value
Luminosity
-1.02 log(Lsun)
-1.15 to -1.02
Distance
137.9 pc
single adopted value
Spectral Type
M2.5 V
Consistent across records
Planets
1
Stable across source rows
System Layout
Known planets
1 planets linked to this host
USco1621 b
Imaging
◌
Discovery
2019
Period
—
Radius
—
Mass
5085.3 M⊕
Eq. Temp
2270 K
USco1621 A and Its Young Planet
USco1621 A is an M2.5 V star located 450 light-years away. This small, cool red dwarf has a reported mass of 0.36 solar masses, which is smaller than the Sun's, and a temperature of 3460 K, which is cooler than the Sun's. Its age is 0.0075 billion years, making it a very young star. One planet is known to orbit this host.
That planet is USco1621 b, discovered by imaging in 2019. Its reported mass estimate is 5090 Earth masses, larger than Earth's and roughly 16 times Jupiter's mass. No orbital period is reported for USco1621 b.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitystable
Spectral Typestable