Registry · deep sky

Cl* Westerlund 1 W 63a

BlueSG SIMBAD s*b B0Iab 10 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 03.40s
Declination: −45° 51′ 57.9″
Galactic l, b: 339.54, -0.4124
Magnitude V: 18.56
Parallax: 0.1183 mas
Proper motion: -2.061, -3.376 mas/yr

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
Cl* Westerlund 1 W 60	BlueSG	9.478″	18.5
[CRN2020] W1035	Star	10.36″	19.56
Cl* Westerlund 1 W 65	Star	12.48″	18.73
[CRN2020] W1034	BlueSG	13.11″	18.69
[B2007] J164703.96-455212.0	LongPeriodV* Candidate	15.09″	—
[CMN2008] C07-X4	BlueSG	16.09″	19.29
[B2007] J164704.69-455206.8	LongPeriodV* Candidate	16.1″	19.17
Cl* Westerlund 1 W 61b	BlueSG	18.21″	18.59
Cl* Westerlund 1 W 61a	BlueSG	19.77″	17.51
WR 77i	WolfRayet*	21.02″	19.79
Cl* Westerlund 1 W 237	RedSG	21.33″	19.01

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-63a · Registry entry updated 2026-08-14.