Registry · deep sky

Cl* Westerlund 1 W 228b

Star SIMBAD * O9Ib 12 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: 16h 46m 58.05s
Declination: −45° 53′ 00.9″
Galactic l, b: 339.51, -0.4119
Parallax: 0.2639 mas
Redshift z: -0.00015079
Radial velocity: -45.21 km/s
Proper motion: -2.266, -3.645 mas/yr

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
[CRN2020] W1016	Star	13.96″	—
Cl* Westerlund 1 W 373	BlueSG	19.41″	—
HD 151018	Star	24.25″	9.37
[CRN2020] W1013	**	30.31″	—
[CRN2020] W1020	**	34.01″	18.45
[RCN2009] W3005	BlueSG	37.98″	—
2MASS J16465789-4552185	Star	42.47″	—
Cl* Westerlund 1 W 232	BlueSG	43.65″	17.53
Cl* Westerlund 1 W 234	Star	43.85″	—
2MASS J16465443-4553300	Star	47.71″	—
2MASS J16465341-4553000	Be*	48.5″	18.06

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/cl-westerlund-1-w-228b · Registry entry updated 2026-08-14.