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]
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
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)

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

Clusters with Blue Straggler Stars

• Hyades

See also

• List of luminous blue variable stars

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.