BlackCAT A Catalog of Stellar-Mass Black Holes in X-ray Binaries

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ID# 10

SLX 1746-331

( Torres2007b )

RA     [J2000]     DEC

[]          []

17:49:48.94  -33:12:11.60

ℓ                      b

[deg]                            [deg]

356.8092322  -02.97358081

Year of discovery: 1985  
( Skinner1990 )

# of outbursts after discovery: 2

Basic data

Distance [kpc]
Distance to the plane (z) [kpc]
Orbital period (Porb) [h]
Peak X-ray flux [erg s-1 cm-2]
Outburst magnitude (AB) Ks=18.78±0.06 Torres2007b
Quiescent magnitude (AB)
E(B-V) [mag] 1.278 Schlafly2011
Spectral type


SLX 1746-331 is a galactic centre source and therefore suffer of large extinction. It showed outbursts in 2003 ( Markwardt2003b ) and 2007 ( Markwardt2007 ). The peak X-ray flux is taken from the 2003 outburst. It also showed some activity in 2011 ( Ozawa2011 ).

Optical/NIR magnitudes

Mag. Outburst (AB)
Mag. Quiescent (AB)
Aladin finding chart
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Default image: DSS2 Red
SLX 1746-331 in Simbad

Finding charts

Orientation: North up, East left. Object marked
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Finding chart reference: Torres2007b

Finding chart

This research has made use of NASA's Astrophysics Data System (ADS) and the SIMBAD database operated at CDS (Strasbourg, France)
Please acknowledge the use of this catalogue in any published work you derive from it.

Last modified: 27 August 2021.