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Fig. 6.

Fig. 6. Refer to the following caption and surrounding text.

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Left: Absolute visual magnitude MV versus half-light radius rh (pc) for MW and M31 dwarf spheroidal galaxies, globular clusters, and MW-only hyper-faint compact stellar systems. We overlay our measurements for And XXXVI. Right: Position of And XXXVI versus other M31-only dwarf spheroidals on the same graph. In black we indicate the position of And XXXVI after varying the distance estimate by ±100 kpc. And XXXVI fits securely on the size-luminosity relation as a UFD. Data were taken from the Local Volume database (Pace 2025), and we only selected systems confirmed to be real according to their criteria.

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