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

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ID# 36

XTE J1720-318

V1228 Sco

( OBrien2003 )

RA     [J2000]     DEC

[hh:mm:ss.ss]          [dd:mm:ss.ss]

17:19:58.99  -31:45:01.11


ℓ                      b

[deg]                            [deg]

354.6237198  +03.10128253

Year of discovery: 2003  
( Remillard2003 )

# of outbursts after discovery:


Basic data

Distance [kpc] 6.5±3.5 Chaty2006
Distance to the plane (z) [kpc] 0.4±0.2 Chaty2006
Orbital period (Porb) [h]
Peak X-ray flux [erg s-1 cm-2]
[keV]
1.06E-08
[2-10]
XTE/ASM
Outburst magnitude (AB) Ks∼17.15 Nagata2003
Quiescent magnitude (AB)
E(B-V) [mag] 2.25 Chaty2006
Spectral type B – G Chaty2006


NOTES





Optical/NIR magnitudes

Mag. Outburst (AB)
Nagata2003
Ks∼17.15
Mag. Quiescent (AB)
Aladin finding chart
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Default image: DSS2 Red
XTE J1720-318 in Simbad

Finding charts

Orientation: North up, East left. Object marked
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Finding chart reference: BlackCAT image archive

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.