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Hubble Spies a Really Cool Star

This Hubble telescope picture reveals one of the least massive and coolest stars ever seen [upper right]. This star is a diminutive companion to the K dwarf star called GL 105A (also known as HD 16160), seen at lower left.…

14 de setembro de 1995
há quase 31 anos
1 min read de leitura
Hubble Spies a Really Cool Star
A Really Cool Star: The Dim, Low-Temperature GL 105C
This is a Hubble Space Telescope picture of one of the least massive and coolest stars even seen (upper right). It is a diminutive companion to the K dwarf star called GL 105A (also known as HD 16160) seen at lower left. The binary pair is located 27 light-years away in the...

This Hubble telescope picture reveals one of the least massive and coolest stars ever seen [upper right]. This star is a diminutive companion to the K dwarf star called GL 105A (also known as HD 16160), seen at lower left. The pair is located 27 light-years from Earth in the constellation Cetus.

Based on the Hubble observation, astronomers calculate that the cool, lightweight star, called GL 105C, is 25,000 times fainter than GL 105A in visible light. If the dim companion were at the distance of our Sun, it would be only four times brighter than the full moon.

NASA

Agência Espacial Americana

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