Table 3: Details of the HST archival observations.

Star	Dataset	Filter	Exposure
			(min)
IRC+10011	j8di89dnq	F814W	11.3
	j8di89dpq
OH 348.2-19.7	j92k41doq	F606W	11.6
	j92k41dtq
AFGL 2514	j92k52i4q	F606W	11.6
	j92k52i9q
AFGL 3068	j92k58h0q	F606W	23.1
	j92k58h1q
	j92k58h5q
	j92k58h3q