HD100546b

This newborn planet, named HD 100546 b, is the first case of a planet of its kind in its birth stage, so HD 100546 b is a planetary laboratory for scientists to discover some interesting mysteries about planet formation. HD 100546 b is still surrounded by a large amount of dust and gas, suggesting that it is still in its nascent stage, and that it is still an unformed planet. [2]
Scientists estimate that HD 100546 b is nearly seven times the radius of Jupiter, has a temperature of over 600 degrees Celsius, and is a large-area source of radiation. The latest results suggest that HD 100546 b may also have a planet around it, but this has not yet been confirmed, and scientists plan to use the Alma Radio Telescope in the Atacama Desert in Chile to see if there are other planets. If this is true, the planet's orbital radius is even smaller, approaching one-fifth the radius of HD 100546 b.
Scientific research
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Research significance
Based on the thousands of exoplanets discovered in recent years, many stars belong to multi-planet systems, just like our solar system. If HD 100546 is a multi-planet system, then this observation is even more significant, and we will be able to learn more about the growth of a multi-planet system. [1]
Star data
The star HD 100546 is relatively close, about 335 light-years away, and is a neighbor of the Solar System, but is only about 5 to 10 million years old. Like most young stars, it is surrounded by gas and dust, and protoplanetary disks are clustered around the star, where new planets are evolving. The main material of the protoplanetary disk of the star HD 100546 is concentrated in an area of 50 astronomical units (AU). A newborn planet appears to be embedded in the disk. Scientists have observed a signal of a massive accumulation of gas.