HD 86226
A Sun-like star with two known exoplanets.
HD 86226 is a G-type main-sequence star in the constellation Hydra, too dim to be seen without a telescope at an apparent visual magnitude of 7.93. It hosts two exoplanets and is located approximately 149 light years away, receding at a heliocentric radial velocity of +19.6 km/s.
Quick Facts
- Apparent visual magnitude
- 7.93
- Distance
- 149 light years
- Heliocentric radial velocity
- +19.6 km/s
- Stellar classification
- G2V
- Age
- 3.8 billion years
- Luminosity relative to sun
- 18% greater
- Effective temperature
- 5,863 K
Facts from the source article.
Did You Know?
- A survey in 2015 ruled out any stellar companions at projected distances above 12 astronomical units.
- The exoplanet HD 86226 c, a hot Super-Earth discovered in 2020, may be undergoing considerable atmospheric mass loss.
- The first exoplanet, HD 86226 b, was discovered in 2010 via 13 Magellan Doppler velocity observations.
Description
This ordinary G-type main-sequence star, classified G2V, is similar to the Sun in size, mass, and composition but is not considered a solar twin. It is about 3.8 billion years old and radiates 18% more luminosity than the Sun from its photosphere at an effective temperature of 5,863 K. The star spins with a projected rotational velocity of 3.6 km/s. A tentative detection of radio emission at 150 MHz from the system's vicinity has been made, though the source may be either the star or a satellite orbiting a rapidly rotating planet.
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