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Name
V0821 Ara
AAVSO UID
Constellation
J2000.0
B1950.0
16 59 01.96 -48 43 07.6
Galactic coord.
338.939 -4.326
Other names(Internal only)
1RXS J170248.5-484719
2MASS J17024936-4847228
3A 1659-487
4U 1658-48
AAVSO_DES 1655-48
GX 339-04
UCAC4 207-133539
X 16589-487
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Variability type
LMXB/BHXB/XN
Spectral type
F8-G2III
Mag. range
15.4 - 20.4: V
Discoverer
--
Epoch
Outburst
--
Period
1.754167 d
Rise/eclipse dur.
--
Remarks
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1
Otero, Sebastian Alberto
Likely a black hole binary.
2
GCVS Team
4U 1658-48. Unusua1 X-ray system. Quasiperiodic optical variations (P ~20s) with total amplitude 40 percent, abrupt bursts on ~20 ms time scale leading to two-fold flux increase and light changes by 6m during less than two months were observed [C.Motch, S.A.Ilovaisky, IAU Circ N3609, 1981. ]. Lx/Lopt = 3.
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References
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1
Corral-Santana, J. M.; Casares, J.; Muñoz-Darias, T.; et al., 2016,
2016ApJS..222...15T
2
Rapid optical and X-ray timing observations of GX339-4: multicomponent
2010MNRAS.407.2166G
3
J.E.Grindlay, ApJ 232, L33, 1979.
1979ApJ...232L..33G
4
R.Doxsey, J.Grindlay, R.Griffiths, H.Bradt, M.Johnston, R.Leach,
1979ApJ...228L..67D
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service . These data may not be complete.
2MASS
J = 15.91 H = 15.40 K = 14.97 J - K = 0.94
AllWISE
W1 = 10.46 W2 = 9.45 W3 = 6.84 W4 = 5.13 W1 - W2 = 1.01 W3 - W4 = 1.71
Images
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Supporting Documents
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Revision History
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