UPSA Object Registry
Registry · deep sky

Cl Westerlund 1

OpenCluster SIMBAD OpC 665 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 02.40s
Declination
−45° 51′ 07.0″
Galactic l, b
339.55, -0.401
Parallax
0.252 mas
Redshift z
-6.791e-05
Radial velocity
-20.36 km/s
Proper motion
-2.325, -3.654 mas/yr
Angular size
3′ × 3′

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
Cl* Westerlund 1 W 23a BlueSG 2.658″ 18.32
Cl* Westerlund 1 W 24 BlueSG 6.136″ 18.71
Cl* Westerlund 1 CN J WolfRayet* 7.143″ —
Cl* Westerlund 1 W 12 YellowSG 8.227″ 17.57
Cl* Westerlund 1 W 41 BlueSG 10.54″ 17.87
Cl* Westerlund 1 W 47 BlueSG 10.89″ 19.95
[CRN2020] W1031 Star 12.26″ —
Cl* Westerlund 1 W 21 BlueSG 14.98″ 18.41
Cl* Westerlund 1 W 43a BlueSG 15.23″ 18.05
Cl* Westerlund 1 W 43 ** 15.34″ —
Cl* Westerlund 1 W 43b BlueSG 15.76″ —

Provenance

where this card came from
ArchiveRead at (UTC)Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/cl-westerlund-1 · Registry entry updated 2026-08-14.