DE CVn b
The parameters of this planet are disputed or ambiguous in the scientific literature.
DE CVn b is a cold gas giant orbiting DE CVn in the constellation Canes Venatici. It lies about 100 light-years from Earth and was discovered in 2018 using the eclipse timing variations method.
Is DE CVn b in the Habitable Zone?
The position of DE CVn b relative to the habitable zone of DE CVn cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on DE CVn b — one full orbit around DE CVn — lasts 4,098.1 Earth days, longer than an Earth year. It orbits at an average distance of 5.750 AU.
How Was DE CVn b Discovered?
DE CVn b was discovered in 2018 using the eclipse timing variations method, with observations from Multiple Facilities.
Eclipse timing variations detect a planet orbiting an eclipsing pair of stars: the planet's gravity shifts the precise moments when the stars eclipse each other.
How Far Away Is DE CVn b?
DE CVn b is 99.6 light-years (30.5 parsecs) from Earth. Light arriving here tonight left the planet around the year 1927. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 1,752,960 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. DE CVn b scores 0.07, ranking #4,876 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: DE CVn
DE CVn b is a circumbinary planet — it orbits around two stars at once, like Tatooine in Star Wars.
DE CVn
- Mass
- 0.51 M☉
Planetary System
DE CVn b is the only planet known to orbit DE CVn so far.
DE CVn b — Complete Data
| Mass (best estimate) | 3,823.27 Earth masses |
|---|---|
| Orbital period | 4,098.10 days |
| Orbital distance | 5.750 AU |
| Earth Similarity Index | 0.07 |
| Distance from Earth | 99.6 light-years (30.5 parsecs) |
| Constellation | Canes Venatici |
| Discovery method | Eclipse Timing Variations |
| Discovery facility | Multiple Facilities |
| Discovery year | 2018 |
Data: NASA Exoplanet Archive, last updated 2019-07-03. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About DE CVn b
Is DE CVn b habitable?
DE CVn b is not known to orbit within the habitable zone of DE CVn, and as a cold gas giant it is an unlikely candidate for life as we know it.
How far away is DE CVn b?
DE CVn b is about 100 light-years from Earth in the constellation Canes Venatici. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 1,752,960 years to get there.
How long is a year on DE CVn b?
One orbit around DE CVn takes 4,098.1 Earth days.
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