Clusters are also a crucial step in determining the Reddening and stellar populations must be accounted for when using this method.
32.
The motion of stars in elliptical galaxies is predominantly radial, unlike the disks of old stellar populations, giving them red colors.
33.
The stellar population includes four Cepheids and RV Tauri variables, plus at least one RR Lyrae variable for which a period is known.
34.
As a result of the build up from an assortment of satellite galaxies, variations in properties such as metallicity are present across stellar populations in halos.
35.
These models, which are tightly constrained by observations, provide insight into stellar populations and will ultimately be used to synthesize the stellar populations of distant galaxies.
36.
These models, which are tightly constrained by observations, provide insight into stellar populations and will ultimately be used to synthesize the stellar populations of distant galaxies.
37.
The ongoing programmes include observations of stars, star clusters, novae, supernovae, blazars, galaxies, optical imaging of gamma-ray burst fields, stellar populations, solar system objects and many others.
38.
Designated SN 1971L, it was situated along a spiral arm, suggesting that the progenitor was not a member of the older, more evolved stellar population of the galaxy.
39.
The first color-magnitude diagrams of open clusters were published by Ejnar Hertzsprung in 1911, giving the plot for the Pleiades and Praesepe clusters had different stellar populations than the Pleiades.
40.
Near-and far-UV emissions as measured by GALEX can indicate the presence of young stars, but may also originate from old stellar populations ( e . g . sdB stars ).
