TW Hydrae association

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The TW Hydrae association is a group of approximately thirty very young stars located 50 parsecs[1] from Earth that share a common motion and appear to all be roughly the same age, 5-10 million years old. The best studied members of this stellar association are TW Hydrae (nearest known accreting T Tauri star to the Earth), HR 4796 (an A-type star with resolved dusty debris disk; the most massive known group member), HD 98800 (a quadruple star system with debris disk), and 2M1207 (accreting brown dwarf with remarkable planetary-mass companion 2M1207b).

Included in the association is WISEA 1147, which is a brown dwarf.[2][3][4]

References

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