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

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ID# 22

GRS 1730-312

KS 1730-312

( Vargas1996 )

RA     [J2000]     DEC

[]          []

17:33:32.00  -31:12:16.00

ℓ                      b

[deg]                            [deg]

356.6879350  +01.00634388

Year of discovery: 1994  
( Borozdin1994 )

# of outbursts after discovery:

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)
Quiescent magnitude (AB)
E(B-V) [mag] 5.5 Schlafly2011
Spectral type


KS 1730-312 has an error radius in the astrometry of 3' ( Vargas1996 ).

Optical/NIR magnitudes

Mag. Outburst (AB)
Mag. Quiescent (AB)
Aladin finding chart
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GRS 1730-312 in Simbad

Pan-STARRS1 finding chart

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PS1 Finding chart PS1 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.