V1298 Tau d

A confirmed exoplanet orbiting V1298 Tau.

Compared with Earth

Size
About 6.5 times Earth's width.
Mass
About 6 times Earth's mass.
Temperature
About 558 °C (1,036 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 12 Earth days.

Planet

Radius
6.53 × Earth
Mass
6 × Earth
Density
0.12 g/cm³
Equilibrium temperature
831 K
Starlight received
Unknown
Orbital period
12.4 days
Average distance from its star
0.1081 AU

Star

Host star
V1298 Tau
Spectral class
K — orange dwarf
Surface temperature
4,970 K
Radius
1.32 × Sun
Mass
1.1 × Sun
Age
0.02 billion years

System

Distance from Earth
352.9 light-years (108.2 parsecs)
Stars in system
3
Known planets
4

Discovery

Year
2019
Method
Transit
Facility
K2

Data from the NASA Exoplanet Archive, synced October 14, 2026.