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

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ID# 29

XTE J2012+381

( Hynes1999 )

RA     [J2000]     DEC

[]          []

20:12:37.71  +38:11:01.10

ℓ                      b

[deg]                            [deg]

075.3883359  +02.2470781

Year of discovery: 1998  
( Remillard1998 )

# 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) R=20.0±0.2 Hynes1999
Quiescent magnitude (AB) Ks=20.1±0.2 Lopez2019
E(B-V) [mag] 1.9 – 2.4 Hynes1999
Spectral type


XTE J2012+381 is blended with a star at 1.1” with RAB=17.20 \pm 0.05 and KAB=16.90 \pm 0.03 ( Hynes1999 ).

Optical/NIR magnitudes

Mag. Outburst (AB)
Mag. Quiescent (AB)
Aladin finding chart
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XTE J2012+381 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.