Registry · deep sky

W 51b

StarFormingReg SIMBAD SFR 91 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: 19h 23m 32.80s
Declination: +14° 29′ 56.0″
Galactic l, b: 49.459, -0.3531

Also known as

3 identifiers

[M72b] G49.5b[M94] 49.5 -0.4 bW 51b

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
AGAL G049.459-00.351	smmRad	5.544″	—
AGAL G049.472-00.367	smmRad	66.39″	—
[MWH86] W 51 Met 5	Maser	78.93″	—
AGAL G049.481-00.356	YSO	88.35″	—
JCMTLSP J192338.5+143038	PartofCloud	94.76″	—
2MASS J19232642+1430325	Star	99.53″	—
2MASX J19233591+1431288	YSO	103.3″	—
W 51a	HIIReg	114″	—
W 51 North	Radio	117.6″	—
[BE83] Maser 049.49-00.37	Maser	118.2″	—
AGAL G049.489-00.369	denseCore	121.8″	—

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/w-51b · Registry entry updated 2026-08-14.