Planetary System
In 2005 they discovered an unusual extrasolar planet orbiting the star. The planet, designated HD 149026 b, was detected transiting the star allowing its diameter to be measured. It was found to be smaller than other known transiting planets, meaning the planet is unusually dense for a closely orbiting giant planet. The temperature of the giant planet is calculated to be 3,700 °F (2,040 °C), generating so much infrared heat that it glows. Scientists believe the planet absorbs nearly all the sunlight and radiates it into space as heat.
| Companion |
Mass | Semimajor axis |
Orbital period |
Eccentricity | Radius |
|---|---|---|---|---|---|
| b | 0.36 ± 0.03 MJ | 0.042 | 2.8766 ± 0.001 | 0 | — |
Read more about this topic: HD 149026
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