The Big Bang, 14 billion years ago is considered the beginning of universe. 200 million years after Big Bang, the very first stars (called Population III stars) began to form. 23 stars identified as “from the cosmic dawn in the bulge of the Milky Way”.
HD 140283 (Methuselah star)
Age: ~14.5 ± 0.8 billion years
Distance from Earth: 190 ± 2 light years
Type: Subgiant
Constellation: Libra
Star designated HD 140283 is the oldest known star in galaxy.
HD 122563
Age: ~13 billion years
Distance from Earth: 770 ± 60 light years
Type: Red giant
Constellation: Boots
Caffau’s Star (Impossible Star)
Age: ~13 billion years
Distance from Earth: ~4,140 light years
Type: Unknown
Constellation: Leo
Sneden’s Star
Age: 13 billion years
Distance from Earth: 15,300 light years
Type: Main sequence star
Constellation: Aquarius
HE 1523-0901
Age: 13.2 billion years
Distance from Earth: ~7,500 light years
Type: Red giant
Constellation: Libra
SMSS J031300.36-670839.3
Age: 13.6 billion years
Distance from Earth: 6,000 light years
Type: Main sequence star
Constellation: Hydrus
BD +17° 3248
Age: ~13.8 ± 0.4 billion years
Distance from Earth: ~1,000 light years
Type: Subgiant
Constellation: Hercules
Wish upon a star!