List of blue straggler stars

This is a list of blue straggler stars in order of their distance from Earth.[1][2][3]

List

Blue Straggler Stars (confirmed)

Star system←→←→ Median distance (ly) RA
DEC 		Stars in system Spectral type Apparent magnitude (V) Cluster/Nebula Formation Mechanism Notes
Alpha Fornacis Ba (Dalim) 45.66 ± 0.08 03h 12m 04.5298s
−28° 59′ 15.439″		 3 F6V + G7V + D 3.85 No Mass Transfer The Closest Known Blue Straggler Star to Earth.[4]
HD 65907 52.8 07h 57m 46.9s
−60° 18′ 11″		 3 F9.5V [5][6]
HR 3220 (B Carinae) 58.9 ± 0.6 08h 09m 00.56958s
−61° 18′ 08.5836″		 2 F6 V Fe-0.8 CH-0.4 + D 4.75 Mass Transfer [7]
HD 128429 87.7 ± 0.9 14h 36m 59.79592ss
−12° 18′ 19.0687″		 2 F6V + D 6.197±0.005 Mass Transfer [8]
Regulus Aa 89.3±0.7 10h 08m 22.311s
+11° 58′ 01.95″		 4 B8 IV + WD + K2 V +M4 V 1.40 Mass Transfer Brightest known Blue Straggler to Earth. [9]
19 Aquarii 260 ± 3 21h 25m 13.01629s
−09° 44′ 54.7923″		 1 A8V 5.713 [10]
SX Phoenicis 272 ± 1 23h 46m 32.89291s
−41° 34′ 54.7708″		 1 A2 V 6.76 – 7.53
V518 Carinae (HR 4196) 450 ± 10 1 B3/5V 4.82
Theta Carinae 460 ± 10 1 B0.5 Vp 2.76 Part of IC 2602 Open Cluster.
HD 136179 489 15h 19m 48.18597s
−20° 52′ 17.0439″		 1 F3V[11] 8.42[12] [13]
SU Crateris 555 1 F8V
BD−12°2669 570 2 A5
40 Cancri 626 ± 9 1 A1 V 6.61
HD 89890 1,200 ± 100 4 B3 III + A0 IVpSi + A2 + K0 III 4.50
DY Pegasi 1,330 ± 20 1 A3 to F1 9.95 – 10.62
HD 214539 1,421 1 B8/9Ib
HD 224927 1,180 1 A9V
2M0056–08 2,175 ± 29 3 ? + ? Red Straggler Binary[14]
WOCS 9005 2,600–2,900 2 F + W Messier 67 (King Cobra/Golden Eye Cluster) [15]
31 Crateris (TY Corvi) 3,000 2 B1.5V + ? 5.19-5.23
HD 87266 3,245 1 B3 NGC 3114 [16]
KIC 11145123 3,910 ± 50 1 F7V 13.12
HD 93521 5,000 ± 300 1 O9.5IIInn or O9.5Vp 7.03
BD+43 3654 5,400 ± 300 1 O4If 10.06
M10-VLA1 14,000 1 ? Messier 10 Red Straggler
BSS 19 14,500 ± 32.6 1 BSS 47 Tucanae [17]
NJL 220 15,800 ± 1.1 1 BSS Omega Centauri [18]
HE 0437-5439 (HVS3) 200,000 1 BV or sdB+F 16.42

Blue Straggler Stars (candidate/former)

Star system←→←→ Median distance (ly) Stars in system Spectral type Apparent magnitude (V) Comments and references
HD 159062 70.619 ± 0.006 1 G9V Fe−0.8 7.305
HD 22413 245 1 A9V

See also

References

  1. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ Barry, Don C. (January 1970), "Spectral Classification of a and F Stars", Astrophysical Journal Supplement, 19: 281, Bibcode:1970ApJS...19..281B, doi:10.1086/190209.
  3. ^ Frost, E. B. (December 1924), "Fourteen spectroscopic binaries", Astrophysical Journal, 60: 319–320, Bibcode:1924ApJ....60..319F, doi:10.1086/142868.
  4. ^ Fuhrmann, K.; Chini, R.; et al. (June 2016). "Evidence for very nearby hidden white dwarfs". Monthly Notices of the Royal Astronomical Society. 459 (2): 1682–1686. Bibcode:2016MNRAS.459.1682F. doi:10.1093/mnras/stw760.
  5. ^ Sutter, Paul M.; Today, Universe. "HD 65907: The mysterious case of the resurrected star". phys.org. Retrieved 2025-09-07.
  6. ^ "The Mysterious Case of the Resurrected Star". Universe Today. 18 December 2024. Retrieved 1 March 2025.
  7. ^ Fuhrmann, K.; et al. (September 2011), "Discovery of the nearby F6V star HR 3220 as a field blue straggler", Monthly Notices of the Royal Astronomical Society, 416 (1): 391–392, Bibcode:2011MNRAS.416..391F, doi:10.1111/j.1365-2966.2011.19042.x
  8. ^ Fuhrmann, Klaus; Chini, Rolf (October 2017), "On the ancient field blue straggler HR 5455", Monthly Notices of the Royal Astronomical Society, 471 (2): 1888–1891, Bibcode:2017MNRAS.471.1888F, doi:10.1093/mnras/stx1784.
  9. ^ Rappaport, S.; Podsiadlowski, Ph.; Horev, I. (10 June 2009). "The Past and Future History of Regulus". The Astrophysical Journal. 698 (1): 666–675. arXiv:0904.0395. Bibcode:2009ApJ...698..666R. doi:10.1088/0004-637X/698/1/666.
  10. ^ Eggen, Olin J. (October 1996). "Star Streams and Galactic Structure". Astronomical Journal. 112: 1595. Bibcode:1996AJ....112.1595E. doi:10.1086/118126.
  11. ^ Houk, N.; Smith-Moore, M. (1988). Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars. Volume 4, Declinations -26°.0 to -12°.0. Ann Arbor, Michigan: University of Michigan.
  12. ^ Høg, E.; et al. (February 2000). "The Tycho-2 Catalogue of the 2.5 Million Brightest Stars". Astronomy and Astrophysics. 355 (1): L27 – L30. Bibcode:2000A&A...355L..27H.
  13. ^ Fuhrmann, Klaus; Chini, Rolf (2017-12-01). "On the Ancient Field Blue Straggler HD 136179". Research Notes of the AAS. 1 (1): 25. Bibcode:2017RNAAS...1...25F. doi:10.3847/2515-5172/aa9be3. ISSN 2515-5172.
  14. ^ Stassun, Keivan G.; Torres, Guillermo; Kounkel, Marina; Tofflemire, Benjamin M.; Leiner, Emily; Feliz, Dax L.; Dixon, Don M.; Mathieu, Robert D.; Gosnell, Natalie; Gully-Santiago, Michael (2023-06-01). "An Eclipsing Binary Comprising Two Active Red Stragglers of Identical Mass and Synchronized Rotation: A Post-mass-transfer System or Just Born That Way?". The Astrophysical Journal. 950 (2): 99. arXiv:2305.00134. Bibcode:2023ApJ...950...99S. doi:10.3847/1538-4357/acd17c. ISSN 0004-637X.
  15. ^ "AstroSat exposes the mystery of vampire star rejuvenation". ISRO. Retrieved 1 March 2025.
  16. ^ "HD 87266 - Star - SKY-MAP". www.wikisky.org. Retrieved 2025-10-02.
  17. ^ Shara, Michael M.; Saffer, Rex A.; Livio, Mario (1997-11-01). "The First Direct Measurement of the Mass of a Blue Straggler in the Core of a Globular Cluster: BSS 19 in 47 Tucanae". The Astrophysical Journal. 489 (1): L59 – L62. Bibcode:1997ApJ...489L..59S. doi:10.1086/310952.
  18. ^ "Blue Straggler Stars". www.mso.anu.edu.au. Retrieved 2025-09-27.
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