KOI-2513.01
KOI-2513.01 is a super-Earth orbiting KOI-2513 in the constellation Cygnus. It lies about 4,468 light-years from Earth and was discovered in 2023 using the transit method.
How Big Is KOI-2513.01?
KOI-2513.01 has a radius of 2.80 times that of Earth. Its mass is 7,310 times that of Earth, giving it a density of 2,000.00 g/cm³ — comparable to rocky planets like Earth (5.51 g/cm³).
Is KOI-2513.01 in the Habitable Zone?
KOI-2513.01 orbits inside the inner edge of the habitable zone of KOI-2513. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of KOI-2513: 0.932–2.189 AU (conservative: 1.181–2.076 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 KOI-2513.01 — one full orbit around KOI-2513 — lasts 19.0 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.500 AU — comparable to the inner Solar System. Its orbit is highly elliptical (eccentricity 0.36), swinging dramatically closer to and farther from its star.
How Was KOI-2513.01 Discovered?
KOI-2513.01 was discovered in 2023 using the transit method, with observations from Kepler.
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 KOI-2513.01?
KOI-2513.01 is 4,467.9 light-years (1,369.9 parsecs) from Earth. Light arriving here tonight left the planet about 4,468 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 78,635,040 years to make the journey.
The Host Star: KOI-2513
KOI-2513
- Surface temperature
- 5,900 K (Sun: 5,772 K)
- Mass
- 0.91 M☉
- Radius
- 1.20 R☉
- Age
- 8.0 billion years (Sun: 4.6)
Planetary System
KOI-2513.01 is the only planet known to orbit KOI-2513 so far.
KOI-2513.01 — Complete Data
| Radius | 2.802 Earth radii (0.250 Jupiter radii) |
|---|---|
| Mass | 7,310.05 Earth masses (23.000 Jupiter masses) |
| Density | 2,000.00 g/cm³ (Earth: 5.51) |
| Orbital period | 19.01 days |
| Orbital distance | 0.500 AU |
| Eccentricity | 0.360 |
| Distance from Earth | 4,467.9 light-years (1,369.9 parsecs) |
| Constellation | Cygnus |
| Discovery method | Transit |
| Discovery facility | Kepler |
| Discovery year | 2023 |
Data: NASA Exoplanet Archive, last updated 2024-04-15. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About KOI-2513.01
Is KOI-2513.01 habitable?
No — KOI-2513.01 orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is KOI-2513.01?
KOI-2513.01 is about 4,468 light-years from Earth in the constellation Cygnus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 78,635,040 years to get there.
How big is KOI-2513.01 compared to Earth?
KOI-2513.01 has 2.80 times the radius of Earth and about 7,310 times its mass.
How long is a year on KOI-2513.01?
One orbit around KOI-2513 takes 19.0 Earth days — short enough that 19 of its years would fit into one Earth year.
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