Registry · deep sky

[SG2009] X3

HighMassXBin SIMBAD HXB 6 papers

harvesting The full record is being pulled from the archives right now — measurement tables, the Gaia row, catalogue photometry. This page will fill itself in.

Right ascension: 12h 42m 06.10s
Declination: +32° 32′ 47.0″
Galactic l, b: 142.85, 84.22

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
NGC 4631	GtowardsCl	29.85″	9.19
AT 2021biy	Transient	47.1″	—
2CXO J124211.1+323236	HighMassXBin	64.28″	—
[VP96] H10	Star	86″	—
[CHP2004] J124157.4+323203	X	120.4″	—
NGC 4627	GtowardsGroup	124.8″	12.43
[CHP2004] J124216.0+323250	X	125.2″	—
[SST2011] J124155.56+323216.9	HighMassXBin	136.6″	—
[LB2005] NGC 4631 ULX1	ULX Candidate	138.8″	—
2XMM J124205.1+323634	AGN Candidate	228″	—
[WMR2006] NGC4631 XMM3	X	256.7″	—

Provenance

where this card came from

Archive	Read at (UTC)	Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/sg2009-x3 · Registry entry updated 2026-08-14.