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

« Previous BHT   Next BHT »

ID# 36

XTE J1720-318

V1228 Sco

(OBrien2003)

RA     (ICRS)     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

Scroll to zoom. Set survey image in "Manage layers"
Default image: DSS2 Red

XTE J1720-318 in Simbad

---

Finding charts

Orientation: North up, East left. Object marked
Click to enlarge in new tab/window

Finding chart reference: BlackCAT image archive