Metallicity
The globular cluster M80. Starns in globular clusters are mainly aulder metal-puir members o Population II.
In astronomy an pheesical cosmology, the metallicity or Z is the fraction o mass o a starn or ither kind o astronomical object that isna in hydrogen (X) or helium (Y).[1][2]
References[eedit | eedit soorce]
- ↑ D. Kunth & G. Östlin (2000). "The Most Metal-poor Galaxies". 10 (1). The Astronomy and Astrophysics Review. Retrieved 3 Februar 2015. Cite uses deprecated parameter
|last-author-amp=(help); Cite journal requires|journal=(help) - ↑ W. Sutherland (26 Mairch 2013). "The Galaxy. Chapter 4. Galactic Chemical Evolution" (PDF). Archived frae the original (PDF) on 26 Januar 2020. Retrieved 13 Januar 2015.