List of oldest stars
The age of the oldest known stars approaches the age of the universe, about 13.8 billion years. These are recognized as among the oldest:
Name | Age | Distance | Distance descriptor |
Cayrel's Star or BPS CS31082-0001 | 12.5 billion years ± 4 billion years | 14000 ly | Milky Way Galactic Halo |
HE 1327-2326 | unstated | 4000 ly | Milky Way Galactic Halo |
SDSS J102915+172927 or Caffau's Star | 13 billion years | 4500 ly | Milky Way Galactic Halo |
HE0107-5240 | 13 billion years | 36000 ly | Milky Way Galactic Halo |
HD 122563 | 13 billion years | 770 ly | Milky Way |
Sneden's Star or BPS CS22892-0052 | 13 billion years | 15300 ly | Milky Way Galactic Halo |
HE 1523-0901 | 13.2 billion years | 7500 ly | Milky Way Galactic Halo |
2MASS J18082002-5104378 B | 13.53 billion years | 1950 ly | Milky Way thin disk |
SMSS J031300.36-670839.3 | 13.6 billion years | 6000 ly | Milky Way Galactic Halo or Globular Clusters |
BD +17° 3248 | 13.8 ± 4 billion years | 968 ly | Milky Way Galactic Halo |
HD 140283 or the Methuselah Star | 14.46 ± 0.8 billion years | 190 ly | Milky Way, 19° north of Galactic Centre, closer than the Galactic Bulge |
J173823.38-145701.1 | 13.2 Gy or more | 28000 ly | Milky Way bulge |
J182048.26-273329.2 | 13.2 Gy or more | 20000 ly | Milky Way bulge |
J183744.90-280831.1 | 13.2 Gy or more | 57400 ly | Milky Way bulge |
J183647.89-274333.1 | 13.2 Gy or more | 22000 ly | Milky Way bulge |
J183812.72-270746.3 | 13.2 Gy or more | 40100 ly | Milky Way bulge |
J183719.09-262725.0 | 13.2 Gy or more | 32600 ly | Milky Way bulge |
J184201.19-302159.6 | 13.2 Gy or more | 31000 ly | Milky Way bulge |
J184656.07-292351.5 | 13.2 Gy or more | 31000 ly | Milky Way bulge |
J181406.68-313106.1 | 13.2 Gy or more | 30000 ly | Milky Way bulge |
J181317.69-343801.9 | 13.2 Gy or more | 21000 ly | Milky Way bulge |
J181219.68-343726.4 | 13.2 Gy or more | 26000 ly | Milky Way bulge |
J181609.62-333218.7 | 13.2 Gy or more | 33900 ly | Milky Way bulge |
J181634.60-340342.5 | 13.2 Gy or more | 34200 ly | Milky Way bulge |
J175544.54-392700.9 | 13.2 Gy or more | 44000 ly | Milky Way bulge |
J175455.52-380339.3 | 13.2 Gy or more | 44000 ly | Milky Way bulge |
J175746.58-384750.0 | 13.2 Gy or more | 30000 ly | Milky Way bulge |
J181736.59-391303.3 | 13.2 Gy or more | 51200 ly | Milky Way bulge |
J181505.16-385514.9 | 13.2 Gy or more | 16000 ly | Milky Way bulge |
J181921.64-381429.0 | 13.2 Gy or more | 36500 ly | Milky Way bulge |
J175722.68-411731.8 | 13.2 Gy or more | 40400 ly | Milky Way bulge |
J175021.86-414627.1 | 13.2 Gy or more | 13000 ly | Milky Way bulge |
J175636.59-403545.9 | 13.2 Gy or more | 32000 ly | Milky Way bulge |
J175433.19-411048.9 | 13.2 Gy or more | 18000 ly | Milky Way bulge |
Some of these are among the first stars from reionization, ending the Dark Ages about 370,000 years after Big Bang.