List of oldest stars

{{missing information|the age of the very oldest stars in our galaxy's bulge such as from the Gaia spacecraft|date=June 2018}}

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. This list includes stars older than 12 billion years, or about 87% of the age of the universe.

List

class="wikitable sortable"

! Name !! Age
{{small|(billions of years)}}

!Mass ({{Solar mass}})!!style="text-align:center; " | Distance (ly)!! Location

!Notes

2MASS J22132050-5137385

| {{ntsh|13.6}}13.6{{±|2.6}}

| {{ntsh|0.8}}0.80{{±|0.08}}

| {{ntsh|6560}}6,560{{±|260|330}}

| Milky Way

|{{Cite journal |last=Roederer |first=Ian U. |last2=Beers |first2=Timothy C. |last3=Hattori |first3=Kohei |last4=Placco |first4=Vinicius M. |last5=Hansen |first5=Terese T. |last6=Ezzeddine |first6=Rana |last7=Frebel |first7=Anna |last8=Holmbeck |first8=Erika M. |last9=Sakari |first9=Charli M. |date=2024-08-01 |title=The R-Process Alliance: 2MASS J22132050–5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.45 |journal=The Astrophysical Journal |volume=971 |issue=2 |pages=158 |doi=10.3847/1538-4357/ad57bf |arxiv=2406.02691 |doi-access=free |issn=0004-637X}}

2MASS J18082002−5104378

| {{ntsh|13.53}}13.53

|{{ntsh|0.8}}~0.8

| {{ntsh|1950}}1,950

| Milky Way thin disk

SMSS J031300.36−670839.3

13.4

|{{ntsh|0.75}}~0.75

|{{ntsh|6000}} 6,000

| Milky Way halo or Globular clusters

TOI-157{{Cite journal |last1=Nielsen |first1=L. D. |last2=Brahm |first2=R. |last3=Bouchy |first3=F. |last4=Espinoza |first4=N. |last5=Turner |first5=O. |last6=Rappaport |first6=S. |last7=Pearce |first7=L. |last8=Ricker |first8=G. |last9=Vanderspek |first9=R. |last10=Latham |first10=D. W. |last11=Seager |first11=S. |last12=Winn |first12=J. N. |last13=Jenkins |first13=J. M. |last14=Acton |first14=J. S. |last15=Bakos |first15=G. |date=July 2020 |title=Three short-period Jupiters from TESS: HIP 65Ab, TOI-157b, and TOI-169b |url=https://www.aanda.org/10.1051/0004-6361/202037941 |journal=Astronomy & Astrophysics |volume=639 |pages=A76 |arxiv=2003.05932 |bibcode=2020A&A...639A..76N |doi=10.1051/0004-6361/202037941 |issn=0004-6361}}

|{{ntsh|12.82}}{{Val|12.82|0.73|1.40}}

|{{ntsh|0.948}}0.948{{±|0.023|0.018}}

|{{ntsh|1181}}1,181{{±|9}}

|Milky Way

|Has one exoplanet

PSR B1620−26

|12.7–11.2{{Cite journal |last1=Lacki |first1=Brian C. |last2=Brzycki |first2=Bryan |last3=Croft |first3=Steve |last4=Czech |first4=Daniel |last5=DeBoer |first5=David |last6=DeMarines |first6=Julia |last7=Gajjar |first7=Vishal |last8=Isaacson |first8=Howard |last9=Lebofsky |first9=Matt |last10=MacMahon |first10=David H. E. |last11=Price |first11=Danny C. |last12=Sheikh |first12=Sofia Z. |last13=Siemion |first13=Andrew P. V. |last14=Drew |first14=Jamie |last15=Worden |first15=S. Pete |date=2021-12-01 |title=One of Everything: The Breakthrough Listen Exotica Catalog |journal=The Astrophysical Journal Supplement Series |volume=257 |issue=2 |pages=42 |doi=10.3847/1538-4365/ac168a |doi-access=free |arxiv=2006.11304 |bibcode=2021ApJS..257...42L |issn=0067-0049}}

|{{ntsh|1.35}}1.35{{Citation needed |date=June 2024}}

|{{ntsh|12400}}12,400

|Globular cluster Messier 4

|Host star of one of the oldest exoplanets.

Gliese 414

|12.4{{±|5.2}}{{Cite journal |last1=Dedrick |first1=Cayla M. |last2=Fulton |first2=Benjamin J. |last3=Knutson |first3=Heather A. |last4=Howard |first4=Andrew W. |last5=Beatty |first5=Thomas G. |last6=Cargile |first6=Phillip A. |last7=Gaudi |first7=B. Scott |last8=Hirsch |first8=Lea A. |last9=Kuhn |first9=Rudolf B. |last10=Lund |first10=Michael B. |last11=James |first11=David J. |last12=Kosiarek |first12=Molly R. |last13=Pepper |first13=Joshua |last14=Petigura |first14=Erik A. |last15=Rodriguez |first15=Joseph E. |date=2021-02-01 |title=Two Planets Straddling the Habitable Zone of the Nearby K Dwarf Gl 414A |journal=The Astronomical Journal |volume=161 |issue=2 |pages=86 |doi=10.3847/1538-3881/abd0ef |doi-access=free |arxiv=2009.06503 |bibcode=2021AJ....161...86D |issn=0004-6256}}

|{{ntsh|0.65}}0.65

|{{ntsh|38.7}}38.7

|Milky Way disk

|Host two exoplanets

BD+44 493{{Citation |last=Placco |first=Vinicius M. |title=BD+44 493: Chemo-Dynamical Analysis and Constraints on Companion Planetary Masses from WIYN/NEID Spectroscopy |date=2024-10-11 |url=https://arxiv.org/abs/2410.08943 |access-date=2024-11-24 |doi=10.48550/arXiv.2410.08943 |last2=Gupta |first2=Arvind F. |last3=Almeida-Fernandes |first3=Felipe |last4=Logsdon |first4=Sarah E. |last5=Rajagopal |first5=Jayadev |last6=Holmbeck |first6=Erika M. |last7=Roederer |first7=Ian U. |last8=Della Costa |first8=John |last9=Fernandez |first9=Pipa}}

|{{ntsh|12.1}}12.1–13.2

|{{ntsh|0.83}}0.83{{±|0.09|0.05}}

|{{ntsh|666.3}}666.3{{±|3.59|3.26}}

|Milky Way disk

HD 140283

|{{Val|12|0.05}}{{Cite journal |last1=Tang |first1=Jianling |last2=Joyce |first2=Meridith |date=2021-05-01 |title=Revised Best Estimates for the Age and Mass of the Methuselah Star HD 140283 Using MESA and Interferometry and Implications for 1D Convection |journal=Research Notes of the American Astronomical Society |volume=5 |issue=5 |pages=117 |doi=10.3847/2515-5172/ac01ca |doi-access=free |arxiv=2105.11311 |bibcode=2021RNAAS...5..117T |issn=2515-5172}}

|{{ntsh|0.81}}0.81

|{{ntsh|200.5}}200.5

|Milky Way halo

|Previously thought to be the oldest known star, at 14.46{{±|0.8}} Gyr{{Cite web |last= |first= |title=Hubble finds birth certificate of oldest known star |url=https://phys.org/news/2013-03-hubble-birth-certificate-oldest-star.html |access-date=2024-06-06 |website=phys.org |language=en}}

References

{{reflist|1=25em|refs=

{{cite journal |first=Rennan |last=Barkana |date=1 March 2018 |title=Possible interaction between baryons and dark-matter particles revealed by the first stars |journal=Nature |volume=555 |issue=7694 |pages=71–74 |doi=10.1038/nature25791 |pmid=29493590 |arxiv=1803.06698 |bibcode=2018Natur.555...71B |s2cid=4391544}}

{{cite journal |first1=Miho N. |last1=Ishigaki |first2=Nozomu |last2=Tominaga |first3=Chiaki |last3=Kobayashi |first4=Ken'ichi |last4=Nomoto |year=2014 |title=Faint Population III supernovae as the origin of the most iron-poor stars |journal=The Astrophysical Journal Letters |volume=792 |issue=2 |pages=L32 |doi=10.1088/2041-8205/792/2/L32 |arxiv=1404.4817 |bibcode=2014ApJ...792L..32I |s2cid=119012372}}

{{cite journal |last1=Schlaufman |first1=Kevin C. |last2=Thompson |first2=Ian B. |last3=Casey |first3=Andrew R. |date=5 November 2018 |title=An ultra metal-poor star near the hydrogen-burning limit |journal=The Astrophysical Journal |volume=867 |number=2 |pages=98 |bibcode=2018ApJ...867...98S |arxiv=1811.00549 |doi=10.3847/1538-4357/aadd97 |s2cid=54511945 |doi-access=free}}

{{cite news |title=One of Milky Way's oldest stars discovered |url=http://www.sci-news.com/astronomy/ultra-metal-poor-star-06577.html |date=6 November 2018 |website=SciNews.com |access-date=11 November 2018}}

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