Westerlund 1

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11	Astronomy & Astrophysics Add to Reading List Source URL: www.aanda.org Language: English Space Cygnus constellation Ara constellation Westerlund 1 Hypergiant Stellar classification P Cygni Wolf–Rayet star Balmer series Star types Astronomy Universe
12	A Massive Star Odyssey, from Main Sequence to Supernova Proceedings IAU Symposium No. 212, c 2002 IAU K.A. van der Hucht, A. Herrero & C. Esteban, eds. Add to Reading List Source URL: www.cesr.fr Language: English - Date: 2003-08-22 06:03:02 Cygnus OB2 Cygnus constellation Star types Wolf–Rayet star Cygnus Westerlund 1 8A Milky Way Star cluster Astronomy Space Universe
13	Operations of the Quality Control Group: The UVES case Add to Reading List Source URL: www.sciops.esa.int Language: English - Date: 2012-02-17 19:02:24 Universe Cygnus OB2 Cygnus constellation Cygnus Westerlund 1 Cygnus OB2-12 Cyg OB2 -8A Astrology Astronomy Stellar associations