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

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ID# 11

EXO 1846-031

( Miller-Jones2019 )

RA     [J2000]     DEC

[]          []

18:49:17.05  -03:03:55.26

ℓ                      b

[deg]                            [deg]

029.9580344  -00.91793414

Year of discovery: 1985  
( Parmar1985 )

# of outbursts after discovery:

Basic data

Distance [kpc] ∼7 Parmar1993
Distance to the plane (z) [kpc] ∼-0.11 Parmar1993
Orbital period (Porb) [h]
Peak X-ray flux [erg s-1 cm-2]
Outburst magnitude (AB) r>23
Quiescent magnitude (AB) I>22.3 Parmar1993
E(B-V) [mag] 6.437 Schlafly2011
Spectral type


EXO 1846-031 showed another outburst in 2019 ( Negoro2019 ) but no optical counterpart was detected brighter than r~23 ( Bellm2019 ).

Optical/NIR magnitudes

Mag. Outburst (AB)
Mag. Quiescent (AB)
Aladin finding chart
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EXO 1846-031 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.