Table 2: The sample of comparison stars.
IRAS name Other names Galactic Coordinates Variability Spectral Type [12]-[25] [25]-[60]
00213+3817 R And 117.07 -23.98 Mira S5/4.5e -0.723 -2.104
02192+5821 S Per 134.62 -2.19 SRc M4eIa -0.407 -1.897
10436-3459 Z Ant 275.86 +20.94 SR S5.4 -0.830 -2.172
18397+1738 V821 Her 47.78 +10.01 Mira Ce -0.873 -1.499
19133-1703 T Sgr 20.32 -13.01 Mira S5/6e -1.125 -1.372
20166+3717 WX Cyg 75.43 +0.87 Mira C9,2eJ -1.191 +1.445
23416+6130 PZ Cas 115.06 -0.05 SRc M3vIa +0.070 -1.538
23554+5612 WY Cas 115.57 -5.62 Mira S6/6e -0.633 -1.286
23587+6004 WZ Cas 116.76 -1.91 SRc SC7/10e -1.280 -1.348


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