KOI-7913 b
KOI-7913 b is a mini-Neptune orbiting the K6 V star KOI-7913 A in the constellation Lyra. It lies about 885 light-years from Earth and was discovered in 2022 using the transit method.
How Big Is KOI-7913 b?
KOI-7913 b has a radius of 2.34 times that of Earth.
Is KOI-7913 b in the Habitable Zone?
The position of KOI-7913 b relative to the habitable zone of KOI-7913 A cannot be precisely determined from the available orbital data.
Habitable zone of KOI-7913 A: 0.355–0.884 AU (conservative: 0.450–0.838 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-7913 b — one full orbit around KOI-7913 A — lasts 24.3 Earth days, shorter than Mercury's 88-day year.
How Was KOI-7913 b Discovered?
KOI-7913 b was discovered in 2022 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-7913 b?
KOI-7913 b is 884.8 light-years (271.3 parsecs) from Earth. Light arriving here tonight left the planet around the year 1142. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 15,572,480 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. KOI-7913 b scores 0.38, ranking #570 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: KOI-7913 A
KOI-7913 b belongs to a system of 2 stars; it orbits KOI-7913 A.
KOI-7913 A
- Spectral type
- K6 V
- Surface temperature
- 4,324 K (Sun: 5,772 K)
- Mass
- 0.76 M☉
- Radius
- 0.79 R☉
- Age
- 0.0 billion years (Sun: 4.6)
Planetary System
KOI-7913 b is the only planet known to orbit KOI-7913 A so far.
KOI-7913 b — Complete Data
| Radius | 2.340 Earth radii (0.209 Jupiter radii) |
|---|---|
| Orbital period | 24.28 days |
| Earth Similarity Index | 0.38 |
| Distance from Earth | 884.8 light-years (271.3 parsecs) |
| Constellation | Lyra |
| Discovery method | Transit |
| Discovery facility | Kepler |
| Discovery year | 2022 |
Data: NASA Exoplanet Archive, last updated 2022-10-10. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About KOI-7913 b
Is KOI-7913 b habitable?
KOI-7913 b is not known to orbit within the habitable zone of KOI-7913 A, and as a mini-Neptune it is an unlikely candidate for life as we know it.
How far away is KOI-7913 b?
KOI-7913 b is about 885 light-years from Earth in the constellation Lyra. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 15,572,480 years to get there.
How big is KOI-7913 b compared to Earth?
KOI-7913 b has 2.34 times the radius of Earth.
How long is a year on KOI-7913 b?
One orbit around KOI-7913 A takes 24.3 Earth days — short enough that 15 of its years would fit into one Earth year.
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