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Name
HD 5980
AAVSO UID
Constellation
J2000.0
B1950.0
00 57 45.80 -72 26 03.6
Galactic coord.
302.066 -44.950
Other names(Internal only)
AAVSO_DES 0056-72
ASAS J005927-7209.9
ASASSN-V J005926.47-720954.2
AzV 229
LHA 115-S 28
RMC 14
SMC AB 5
SMC V1484
Sk 78
TYC 9138-1929-1
UCAC4 090-005917
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Variability type
EA/GS/WR+SDOR
Spectral type
WN4+WN-O7I-B1.5Ia+
Mag. range
8.8 - 11.9 V
Discoverer
--
Epoch
Outburst
--
Period
19.2655 d
Rise/eclipse dur.
13% (2.50 d)
Remarks
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1
Otero, Sebastian Alberto
Quadriple system. AB is the 19. d. eclipsing binary. A is the SDOR outbursting object. C is a late O-type supergiant which is itself a binary in a highly eccentric (e = 0.82) 96.6 d. orbit. The EW: variability has P= 0.505054 d. Light curve is assymetric so it might not be eclipsing [VSX Team].
2
Otero, Sebastian Alberto
Eccentric system, Min II at phase 0.64.
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References
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1
G. Schrader, 2012, HD 5980 a boring name for a star system that is anything
VSS Newsletter 2012-4 (December 2012)
2
G. Schrader, 2012, HD 5980 a boring name for a star system that is anything
VSS Newsletter 2012-4 (December 2012)
3
Kołaczek-Szymański, P. A.; et al., 2021, Massive heartbeat stars
2021A&A...647A..12K
4
Smith, N. et al, 2011, Luminous blue variable eruptions and related
2011MNRAS.415..773S
External Links
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Supporting Documents
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Campaigns/Programs
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Revision History
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