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Article Contents

ABSTRACT

1.INTRODUCTION

2.COLOUR-MAGNITUDE DIAGRAM ANALYSIS

2.1. Main Sequence Turnoffs (MSTOs)

2.2. The Core-Helium Burning Blue Loop Stars (BLs)

2.3. The Red Giant Branch (RGB)

2.4. The Red Clump/Horizontal Branch (RC/HB)

2.5. The Extended Asymptotic Giant Branch (EAGB)

2.6. Distance, Extinction & Metallicity

2.7. High Quality Imaging

3. THE DATA: RECENT HST OBSERVATIONS

3.1. Leo A

3.2. Pegasus

3.3. Sextans A

3.4. GR 8

4. THE SCENARIO

REFERENCES