Registry · deep sky

M31GC J004200+404746

Star SIMBAD * 7 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: 00h 42m 00.42s
Declination: +40° 47′ 46.6″
Galactic l, b: 121.01, -22.04
Magnitude V: 19.8
Redshift z: -0.0014443
Radial velocity: -433.3 km/s

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
[AMB2011] HII 1493	HIIReg	0.2271″	22.13
Bol D39	Star	17.85″	19.11
Bol 255	GlobCluster	47.58″	18.16
BA 1-290	HIIReg	71.15″	19.55
[MPV95] 2-021	HIIReg	79.46″	—
KHM31 152	GlobCluster	84.37″	19.56
[AMB2011] HII 1507	HIIReg	89.16″	21.08
Bol 58	GlobCluster	91.97″	14.97
RX J0042.0+4046	X	102.2″	—
2MASS J00420954+4047439	Star	103.7″	15.91
2MASS J00420946+4048193	Star	107.7″	13.49

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/m31gc-j004200-404746 · Registry entry updated 2026-08-14.