Category:Systems with undetermined Spectral class

It is used to build and maintain lists of pages—primarily for the sake of the lists themselves and their use in article and category maintenance. It is not part of the BTW's categorization scheme.

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This category is hidden on its member pages—unless the corresponding user preference is set.
These categories are used to track, build and organize lists of pages needing "attention en masse" (for example, pages using deprecated syntax), or that may need to be edited at someone's earliest convenience.
These categories also serve to aggregate members of several lists or sub-categories into a larger, more efficient list (discriminated by classifications).

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This category may be empty occasionally or even most of the time.

Pages in category "Systems with undetermined Spectral class"

The following 200 pages are in this category, out of 2,366 total.

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