Registry · deep sky

Cl* Westerlund 1 W 27

BlueSG SIMBAD s*b O9I+OI 15 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 05.16s
Declination: −45° 50′ 41.4″
Galactic l, b: 339.56, -0.4025
Magnitude V: 17.94
Parallax: 0.1295 mas
Redshift z: -0.00020199
Radial velocity: -60.56 km/s
Proper motion: -2.008, -3.474 mas/yr

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
2MASS J16470540-4550367	RedSG	5.48″	16.79
Cl* Westerlund 1 W 28	BlueSG	5.895″	17.15
Cl* Westerlund 1 W 29	BlueSG	7.906″	18.66
Cl* Westerlund 1 W 34	BlueSG	9.843″	18.15
Cl* Westerlund 1 W 25	BlueSG	10.42″	17.85
Cl* Westerlund 1 W 18	BlueSG	10.75″	17.61
Cl* Westerlund 1 W 37	Star	10.81″	19.11
Cl* Westerlund 1 W 30	**	11.12″	18.45
Cl* Westerlund 1 W 33	BlueSG	12.87″	15.61
Cl* Westerlund 1 W 36	BlueSG	13.76″	18.89
Cl* Westerlund 1 W 17	BlueSG	13.88″	18.87

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-27 · Registry entry updated 2026-08-14.