Registry · deep sky

Cl* Westerlund 1 W 1

BlueSG SIMBAD s*b O9.5Iab 11 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 59.40s
Declination: −45° 50′ 46.7″
Galactic l, b: 339.54, -0.3907
Magnitude V: 18.37
Parallax: 0.1224 mas
Redshift z: -0.00019765
Radial velocity: -59.26 km/s
Proper motion: -1.861, -3.77 mas/yr

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
Cl* Westerlund 1 W 2	BlueSG	5.567″	16.98
[CMN2008] J164658.2-455056	BlueSG	15.91″	—
2MASS J16465824-4550341	LongPeriodV* Candidate	17.54″	19.91
Cl* Westerlund 1 W 84	Star	18.79″	17.82
[CRN2020] W1024	BlueSG	21.08″	19.38
[B2007] J164659.93-455025.3	Variable*	21.92″	19.48
Cl* Westerlund 1 BKS H	YellowSG	23.2″	14.47
[CRN2020] W1023	Star	24.97″	—
[CRN2020] W1012	Star	27.07″	20.36
[CRN2020] W1031	Star	27.11″	—
Cl* Westerlund 1 W 50b	Star	27.19″	19.66

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-1 · Registry entry updated 2026-08-14.