Registry · deep sky

Cl* Westerlund 1 W 28

BlueSG SIMBAD s*b B2Ia 17 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 47m 04.66s
Declination: −45° 50′ 38.5″
Galactic l, b: 339.56, -0.4009
Magnitude V: 17.15
Proper motion: -2.049, -2.993 mas/yr

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
Cl* Westerlund 1 W 29	BlueSG	3.003″	18.66
Cl* Westerlund 1 W 30	**	5.805″	18.45
Cl* Westerlund 1 W 27	BlueSG	5.895″	17.94
2MASS J16470540-4550367	RedSG	7.99″	16.79
Cl* Westerlund 1 CN V	WolfRayet*	8.959″	—
Cl* Westerlund 1 W 9	WolfRayet*	9.03″	17.47
Cl* Westerlund 1 W 34	BlueSG	9.166″	18.15
Cl* Westerlund 1 W 31	BlueSG	9.365″	—
Cl* Westerlund 1 BKS F	YellowSG	11.41″	15.05
Cl* Westerlund 1 W 33	BlueSG	11.46″	15.61
Cl* Westerlund 1 W 8b	BlueSG	12.17″	—

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-28 · Registry entry updated 2026-08-14.