Using archival imaging from the Wide Field Planetary Camera 2 aboard the Hubble Space Telescope , we investigate the stellar populations of the Local Group dwarf spheroidal Andromeda V - a companion satellite galaxy of M31 .
The color-magnitude diagram ( CMD ) extends from above the first ascent red giant branch ( RGB ) tip to approximately one magnitude below the horizontal branch ( HB ) .
The steep well-defined RGB is indicative of a metal-poor system while the HB is populated predominantly redward of the RR Lyrae instability strip .
Utilizing Galactic globular cluster fiducial sequences as a reference , we calculate a mean metallicity of [ Fe / H ] = -2.20 \pm 0.15 and a distance of ( m - M ) _ { 0 } = 24.57 \pm 0.04 after adopting a reddening of E ( B - V ) = 0.16 .
This metal abundance places And V squarely in the absolute magnitude - metallicity diagram for dwarf spheroidal galaxies .
In addition , if we attribute the entire error-corrected color spread of the RGB stars to an abundance spread , we estimate a range of \sim 0.5 dex in the metallicities of And V stars .
Our analysis of the variable star population of And V reveals the presence of 28 potential variables .
Of these , at least 10 are almost certainly RR Lyrae stars based on their time sequence photometry .