TIC 445839811 b
TIC 445839811 b is a mini-Neptune orbiting TIC 445839811 in the constellation Canes Venatici. It lies about 769 light-years from Earth and was discovered in 2026 using the transit method.
How Big Is TIC 445839811 b?
TIC 445839811 b has a radius of 2.48 times that of Earth.
Is TIC 445839811 b in the Habitable Zone?
The position of TIC 445839811 b relative to the habitable zone of TIC 445839811 cannot be precisely determined from the available orbital data.
Habitable zone of TIC 445839811: 0.571–1.360 AU (conservative: 0.723–1.290 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
Orbit and Year Length
A year on TIC 445839811 b — one full orbit around TIC 445839811 — lasts 11.1 Earth days, shorter than Mercury's 88-day year.
How Was TIC 445839811 b Discovered?
TIC 445839811 b was discovered in 2026 using the transit method, with observations from Transiting Exoplanet Survey Satellite (TESS).
The transit method watches a star for the tiny, regular dip in brightness that occurs when a planet crosses in front of it. The depth and timing of these dips reveal the planet's size and orbital period.
How Far Away Is TIC 445839811 b?
TIC 445839811 b is 768.6 light-years (235.7 parsecs) from Earth. Light arriving here tonight left the planet around the year 1258. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 13,527,360 years to make the journey.
The Host Star: TIC 445839811
TIC 445839811
- Surface temperature
- 5,408 K (Sun: 5,772 K)
- Radius
- 0.85 R☉
Planetary System
TIC 445839811 b is the only planet known to orbit TIC 445839811 so far.
TIC 445839811 b — Complete Data
| Radius | 2.478 Earth radii (0.221 Jupiter radii) |
|---|---|
| Orbital period | 11.11 days |
| Distance from Earth | 768.6 light-years (235.7 parsecs) |
| Constellation | Canes Venatici |
| Discovery method | Transit |
| Discovery facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery year | 2026 |
Data: NASA Exoplanet Archive, last updated 2026-04-23. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TIC 445839811 b
Is TIC 445839811 b habitable?
TIC 445839811 b is not known to orbit within the habitable zone of TIC 445839811, and as a mini-Neptune it is an unlikely candidate for life as we know it.
How far away is TIC 445839811 b?
TIC 445839811 b is about 769 light-years from Earth in the constellation Canes Venatici. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 13,527,360 years to get there.
How big is TIC 445839811 b compared to Earth?
TIC 445839811 b has 2.48 times the radius of Earth.
How long is a year on TIC 445839811 b?
One orbit around TIC 445839811 takes 11.1 Earth days — short enough that 33 of its years would fit into one Earth year.
Explore TIC 445839811 b in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
