Temperature
3410 K
3348 to 3828.3
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Stellar HostProfile
USco1556 A
M3.0 V • 140.6 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 77534376
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
0.33 Msun
0.33 to 0.64
Age
7.50e-3 Gyr
single adopted value
Luminosity
-1.09 log(Lsun)
-1.30 to -1.09
Distance
140.6 pc
single adopted value
Spectral Type
M3.0 V
Consistent across records
Planets
1
Stable across source rows
System Layout
Known planets
1 planets linked to this host
USco1556 b
Imaging
◌
Discovery
2019
Period
—
Radius
—
Mass
4767.4 M⊕
Eq. Temp
2240 K
USco1556 A and Its Young Planet
USco1556 A is an M3.0 V star located 459 light-years away. As an M-type dwarf, it is a small, cool red dwarf. It is also very young, with an age of 0.0075 billion years, and has a mass of 0.33 solar masses and a temperature of 3410 K. Its reported mass estimate is smaller than the Sun's, and its reported temperature is cooler than the Sun's. One planet orbits this host.
That planet is USco1556 b, discovered by imaging in 2019. Its reported mass estimate is 4770 Earth masses, which is larger than Earth's and roughly 15 times Jupiter's mass. No orbital period is reported for USco1556 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