What is Gliese 581?
Q: What is Gliese 581?
A: Gliese 581 is an M-class red dwarf star that is 22 light-years away from the Solar system, and it is the 89th closest known star to the Sun.
Q: What are some other names for Gliese 581?
A: Gliese 581 is also known as HO Librae, GL 581, or GJ 581.
Q: Have astronomers discovered any planets orbiting Gliese 581?
A: Yes, astronomers have discovered some planets that orbit Gliese 581.
Q: How many planets do astronomers agree orbit Gliese 581?
A: Astronomers agree that four planets orbit Gliese 581.
Q: Do all astronomers agree on the number of planets orbiting Gliese 581?
A: No, some astronomers think that there are two more planets orbiting Gliese 581.
Q: Can people on Earth see Gliese 581 with their naked eyes?
A: No, people on Earth cannot see Gliese 581 with their naked eyes. The star's apparent magnitude is 10.57, and a telescope is needed to see it.
Q: What is the estimated temperature of Gliese 581?
A: The estimated temperature of Gliese 581 is 3,498 Kelvin (4125 Celsius, 7457 Fahrenheit).
