HD 62509 b
HD 62509 b is a cold gas giant orbiting HD 62509 in the constellation Gemini. It was discovered in 2006 using the radial velocity method.
Is HD 62509 b in the Habitable Zone?
The position of HD 62509 b relative to the habitable zone of HD 62509 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on HD 62509 b — one full orbit around HD 62509 — lasts 589.6 Earth days, longer than an Earth year. It orbits at an average distance of 1.640 AU. Its orbit is nearly circular (eccentricity 0.020).
How Was HD 62509 b Discovered?
HD 62509 b was discovered in 2006 using the radial velocity method, with observations from Multiple Observatories.
The radial velocity method measures the subtle wobble of a star caused by the gravitational pull of an orbiting planet, visible as periodic shifts in the star's light spectrum. The size of the wobble reveals the planet's minimum mass.
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. HD 62509 b scores 0.13, ranking #4,278 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HD 62509
HD 62509
- Surface temperature
- 4,893 K (Sun: 5,772 K)
Planetary System
HD 62509 b is the only planet known to orbit HD 62509 so far.
HD 62509 b — Complete Data
| Mass (best estimate) | 731.00 Earth masses |
|---|---|
| Orbital period | 589.64 days |
| Orbital distance | 1.640 AU |
| Eccentricity | 0.020 |
| Earth Similarity Index | 0.13 |
| Constellation | Gemini |
| Discovery method | Radial Velocity |
| Discovery facility | Multiple Observatories |
| Discovery year | 2006 |
Data: NASA Exoplanet Archive, last updated 2015-03-26. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HD 62509 b
Is HD 62509 b habitable?
HD 62509 b is not known to orbit within the habitable zone of HD 62509, and as a cold gas giant it is an unlikely candidate for life as we know it.
How long is a year on HD 62509 b?
One orbit around HD 62509 takes 589.6 Earth days.
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