WEBDA page for open cluster Westerlund 1

Basic Parameters			DSS Image: 10 x 10 arcminutes
Right Ascension (2000)	16 47 04
Declination (2000)	-45 50 42
Galactic longitude	339.554
Galactic latitude	-0.400
Distance [pc]	5200
Reddening [mag]	3.0
Distance modulus [mag]	22.88
Log Age
Metallicity
Notes

Numbering system:

Query

• The database for data on any star
• The database for all data on any star
• Make selections on data
• The database for data on Am, Ap, Be, gK, BS, SB, WR stars
• From cluster map (scanned)
• From cluster chart (plotted)
• The cross-reference table
• The Budapest bibliography (Alter et al.)
• The bibliography of the last three | five | ten years

WEBDA content

• Available data
• Data collection and references
• General menu for photometric plots
• General menu for Isochrone plots (basic)
• General menu for Isochrone plots (advanced)
• UBV colour magnitude diagram
• VIc colour magnitude diagram

Archives

Other links

• Deep Sky Browser
• SIMBAD at CDS

Back to Navigation tool