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Name
lam Sco
AAVSO UID
Constellation
J2000.0
B1950.0
17 30 12.64 -37 04 11.5
Galactic coord.
351.744 -2.214
Other names(Internal only)
35 Sco
CD-37 11673
CPD-37 7265
HD 158926
HIP 85927
HR 6527
SAO 208954
X 17401-391
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Variability type
BCEP+E:
Spectral type
B1.5IV
Mag. range
1.62 (0.06) V
Discoverer
--
Epoch
Outburst
--
Period
0.2136966 d (5.12872 h)
Rise/eclipse dur.
--
Remarks
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1
Otero, Sebastian Alberto
Close eclipsing binary made up of a B1.5IV primary (the A component) and a pre-main sequence star (PMS; Aa component).
Ephemeris using Hipparcos data:
HJD 2448165.687 + 5.9525 x E.
Also a constant B2IV star (component B) in a 1053 d. orbit with the close A pair. Combined light given.
(Aa is V= 2.1 and B is V= 2.75)
2
GCVS Team
SB1. Porb = 5.6d? Apuls = 0.02m. Long period light changes: Max = 2440376.15 + 10.1605d*E [N.R.Lomb, R.R.Shobbrook, MN 173, 709, 1975. ]. One eclipse was found (JD2440690, A ~0.04m) [R.R.Shobbrook, N.R.Lomb, MN 156, 181, 1972. ].
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Campaigns/Programs
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