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WikiProject Astronomy / Astronomical objects  (Rated Start-class, Mid-importance)
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(sd), sd, esd[edit]

My spectral DB lists the spectral prefixes (sd), sd and esd. To find: some source explaining them. It is probably just three levels of subdwarfyness, where esd stands for extreme sub-dwarf. Said: Rursus () 20:55, 3 November 2008 (UTC)

Which database is that? Bruddl (talk) 16:53, 20 May 2010 (UTC)

Hot subdwarfs: link to Subdwarf_B_star[edit]

I suggest to include a link to in the Hot subdwarfs section. Text would not need to be changed, it could simply use the "Subdwarf B stars ..." occurence at the beginning of the fifth phrase of the section.Bruddl (talk) 16:50, 20 May 2010 (UTC)