The Stars

What is the closest star?
The closest star to Earth is Proxima Centauri. Although it is the nearest, it is approximately 40 trillion kilometers away, equivalent to 4 light-years.

What is the farthest star?
The farthest star known so far is 1997FF, located at an astonishing distance of 11.3 billion light-years from Earth.

What is the coldest star?
The coldest star recorded is CFBDSIR1458+10, with a temperature of only 100 degrees Celsius. It is located 75 light-years away.

What is the hottest star?
The hottest star known is HD62166, with a temperature reaching 200,000 degrees Celsius.

What is the largest star?
The largest star identified is UY Scuti, which is 1,700 times larger than the Sun. However, Westerlund 1-26 is also mentioned as a potential contender for the title.

What is the smallest star?
The smallest known star is OGLE-TR-122b, which is only 16% larger than Jupiter.

What is the heaviest star?
The heaviest known star is WR20a, with a mass 114 times greater than the Sun.

What is the brightest star?
The brightest star in the night sky is Sirius, visible from almost every part of the planet.

How many stars are known?
It is estimated that approximately 526,230,881 stars have been identified to date.