In the following article we will talk about HD 38283 b, a topic that has generated interest and debate in various areas. HD 38283 b is a topic that has captured the attention of many people due to its relevance and impact on society. Throughout this article we will explore different aspects related to HD 38283 b, from its origin and evolution to its possible implications in the future. It is important to understand the importance of HD 38283 b and analyze it from various perspectives to understand its scope and relevance. Through this article, we will seek to provide a comprehensive view on HD 38283 b and encourage reflection and debate around this topic.
| Discovery | |
|---|---|
| Discovered by | Tinney et al. |
| Discovery site | Anglo-Australian Observatory |
| Discovery date | 2011-04-11 |
| Radial velocity | |
| Orbital characteristics | |
| Apastron | 1.44 AU (215,000,000 km) |
| Periastron | 0.60 AU (90,000,000 km) |
| 1.02 ± 0.07 AU (153,000,000 ± 10,000,000 km)[1] | |
| Eccentricity | 0.41 ± 0.16 |
| 363.2 ± 1.6[1] d 0.994 y | |
Average orbital speed | 29.78 |
| 2450802.6 ± 12[1] | |
| Star | Bubup |
Yanyan,[2] originally named HD 38283 b, is an extrasolar planet, orbiting the 7th magnitude F-type main-sequence star Bubup, 123 light years away in the constellation Mensa. It is a Saturn-like planet orbiting at Earth-like distance, though slightly inwards of its star's habitable zone. Its eccentricity is 0.41, much higher than the Earth's eccentricity of 0.017. The planet's distance ranges from about 0.60 AU (closer to its star than Venus is to the Sun) and 1.44 AU (nearly as distant from its star as Mars is to the Sun). This planet takes 363.2 days to orbit the star, just two days less compared to the Earth's orbital period of 365.256366 days. Its mass is one-third that of Jupiter but its size and density are not known. Since inclination is not known, its actual mass is unknown, either slightly greater or much greater than its lower limit.
This planet could have Earth-like moons with bodies of water and possible life due to the planet's similar distance from its parent star as Earth. But, given the planet's high eccentricity, and the star being more than twice as luminous as the Sun, hypothetical life on the moons may be a bit unlikely.
Yanyan was discovered on 11 April 2011 using the radial velocity technique using the Anglo-Australian Telescope (AAT), and assigned the name HD 38283 b. This method uses to look for planets by watching the star periodically wobble caused by the gravitational tug of the orbiting planets.[1]
The planet was officially named Yanyan by representatives of Australia in the 2019 NameExoWorlds contest held by the IAU. The word "Yanyan" is the Boonwurrung word for "boy".[2]