Hmmmm.
I have the FeI lines at 4956/5270/5328/5455 etc can't see anything close to the 5154A. The first of the Mg triplet is at 5167A.......
Found a spectra in Kaler's book, p243; taken in 1922 it shows many FeII lines around the Hgama region, 4244/4287/4359/4414A
Kaler thinks the original F supergiant has collapsed and become a luminous O supergiant " with an extraordinary absolute bolometric magnitude near -12.5" - maybe on its way to a WR star and/or ready to go "Nova"!!!!!!!
Last edited by Merlin66; 30-01-2009 at 01:26 AM.
Reason: added reference
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