Registry · deep sky

Cl* Westerlund 1 W 25

BlueSG SIMBAD s*b O9Iab 13 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 05.79s
Declination: −45° 50′ 33.4″
Galactic l, b: 339.56, -0.4024
Magnitude V: 17.85
Proper motion: -2.103, -3.545 mas/yr

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
2MASS J16470540-4550367	RedSG	5.135″	16.79
Cl* Westerlund 1 W 15	Star	9.527″	18.96
WR 77s	WolfRayet*	9.729″	19.81
Cl* Westerlund 1 W 13	WolfRayet*	10.08″	17.19
Cl* Westerlund 1 W 27	BlueSG	10.42″	17.94
Cl* Westerlund 1 CN R	WolfRayet*	10.47″	—
Cl* Westerlund 1 W 8b	BlueSG	11.01″	—
Cl* Westerlund 1 W 16	Supergiant	12.35″	16.25
Cl* Westerlund 1 W 28	BlueSG	12.81″	17.15
Cl* Westerlund 1 W 8	YellowSG	13.32″	15.91
Cl* Westerlund 1 W 37	Star	14.3″	19.11

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-25 · Registry entry updated 2026-08-14.