List of oldest stars
From Wikipedia, the free encyclopedia
The age of the oldest known stars approaches the age of the universe, about 13.8 billion years. Some of these are among the first stars from reionization (the stellar dawn), ending the Dark Ages about 370,000 years after the Big Bang.[1] This list includes stars older than 12 billion years, or about 87% of the age of the universe.
List
| Name | Age (billions of years) |
Mass (M☉) | Temperature (K) | Distance (ly) | Location | Notes |
|---|---|---|---|---|---|---|
| HD 140283 | 14.2±0.4[2] | 0.75[2] | 5,787±48[3] | 200.5[4] | Milky Way halo | Agrees with the age of the Universe within one standard deviation.[2] |
| 2MASS J22132050-5137385 | 13.6±2.6 | 0.80±0.08 | 5,509 [5] | 6,560+260 −330 |
Milky Way | [5] |
| 2MASS J18082002−5104378 | 13.53[6][7] | ~0.8 | 5,440 ± 100[8] | 1,950 | Milky Way thin disk | |
| SMSS J031300.36−670839.3 | 13.4[9] | ~0.75 | 5,125 [10] | 6,000 | Milky Way halo or Globular clusters | |
| SDSS J0715-7334 | 12.8 - 13.0[11] | 0.78[12] | 4,700±100[13] | 85129+4892 −5219[11] |
Milky Way halo | Born near the Large Magellanic Cloud |
| TOI-157[14] | 12.82+0.73 −1.40 |
0.948+0.023 −0.018 |
5,629[15] | 1,181±9 | Milky Way | Has one exoplanet |
| PSR B1620−26 | 12.7–11.2[16] | 1.35[citation needed] | 12,400 | Globular cluster Messier 4 | Host star of one of the oldest exoplanets. | |
| Gliese 414 | 12.4±5.2[17] | 0.65 | Primary: 4120±109
Secondary: 3663±70 [17] |
38.7 | Milky Way disk | Host two exoplanets |
| BD+44 493[18] | 12.1–13.2 | 0.83+0.09 −0.05 |
666.3+3.59 −3.26 |
Milky Way disk | ||
| HR 5455 | 12±1[19] | 1.32±0.05 | 6,341±70 [20] | 87.7 | ||
| PicII-503 | >10[21] | 150,000[citation needed] | Pictor II | Classified as a second-generation (Population II) star.[21] |