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TW Hydrae System

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Exoplanetary Scratchpad

[SysBP Img]

The nearest planet forming age star discovered with a protoplanetary disk. Also the nearest classical T-Tauri star, 176 ly and 10 million years old. It is one of the oldest protoplanetary disks known, and if it ever would form planets, that time would be now. It was thought to have contained the youngest known exoplanet and first known one within its protoplanetary disk, but this was later chalked up to the rotation of starspots. Gives astronomers a glimpse of what the Solar System may have been like in its infancy and test planetary formation theories. Large amounts of water have been detected in this system. They occur in the outer parts of the system where comet formation is easy. It is formed from photodesorption, which liberates water molecules from rocks. They could provide enough water for a thousand Earths. This is the first time the amount of water could be measured.The nearest planet forming age star discovered with a protoplanetary disk. Also the nearest classical T-Tauri star, 176 ly and 10 million years old. It is one of the oldest protoplanetary disks known, and if it ever would form planets, that time would be now. It was thought to have contained the youngest known exoplanet and first known one within its protoplanetary disk, but this was later chalked up to the rotation of starspots. Gives astronomers a glimpse of what the Solar System may have been like in its infancy and test planetary formation theories. Large amounts of water have been detected in this system. They occur in the outer parts of the system where comet formation is easy. It is formed from photodesorption, which liberates water molecules from rocks. They could provide enough water for a thousand Earths. This is the first time the amount of water could be measured.

TW Hydrae System Web Pages

TW Hydrae System In the News

Dust Disk Discovered (Jun 2005)

Protoplanetary disk discovered around the nearest and most observable star that could be forming planets right. It very young and about as massive as the Sun, giving astronomers a glimpse at what the solar system may have been like in its infancy.

Youngest Exoplanet Discovered (Jan 2008)

Protoplanet Disproven - Most Likely Due to Starspots (2008)

Most Water-Rich System Known (2011)

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