UPSA Object Registry
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Cl* Westerlund 1 W 43a

BlueSG SIMBAD s*b B0Ia 14 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 03.56s
Declination
−45° 50′ 57.7″
Galactic l, b
339.55, -0.4019
Magnitude V
18.05
Redshift z
-0.00021759
Radial velocity
-65.24 km/s
Proper motion
-2.433, -3.681 mas/yr

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
Cl* Westerlund 1 W 43 ** 0.1322″ —
Cl* Westerlund 1 W 43b BlueSG 1.241″ —
Cl* Westerlund 1 W 43c Star 2.225″ 18.35
Cl* Westerlund 1 W 42 BlueSG 6.383″ —
Cl* Westerlund 1 W 35 BlueSG 7.841″ 18.59
Cl* Westerlund 1 W 41 BlueSG 8.875″ 17.87
[CRN2020] W1043 Star 10.67″ 20.17
Cl* Westerlund 1 CN C WolfRayet* 10.7″ —
Cl* Westerlund 1 W 33 BlueSG 10.99″ 15.61
Cl* Westerlund 1 CN J WolfRayet* 11.52″ —
WR 77k WolfRayet* 11.64″ 18.86

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-w-43a · Registry entry updated 2026-08-14.