The SX Phoenicis variable is a kind of changing stars. These stars exhibit a short-term pulse ranging from 0.03 at0.08 days (0.7ğinde1.9 hours) on a time scale. Spectral classes range from A2 to F5 and their size varies up to 0.7. They have lower metallicity compared to the sun. In addition, elements other than hydrogen and helium have low abundance. They have relatively high space velocities and are low in their star classification. These features distinguish the SX Phoenicis variables from their cousins ​​Delta Scuti. The SX Phoenicis shifts are primarily found in global clusters and galaxy halos. In the variability cycle, there is a periodicity-luminosity relationship. They appear blue (with a higher temperature) than the similar star Antarol stars in the same cluster.

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