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Table 1
Target stars.
| Star | Spectral | Reference | Li | Tc | Puls. period | MK | Distance |
| type | (days) | (pc) | |||||
|
|
|||||||
| W Aqla | S6,8 | 3 | ... | ... | 490 | –8.33 | 360 |
| R Andb | S5-7,5 | 3 | No | Yes | 409 | –8.06 | 440 |
| TV Aur | S5,6 | 3 | Yes | Yes | 182 | –5.65 | 330 |
| AA Cam | M5 S | 4 | No | Yes | Irr | –5.65 | 250 |
| S Casc | S5,4 | 1 | Yes | ... | 612 | –8.67 | 910 |
| T Cet | M5-6S | 4 | No | Yes | 159 | –5.65 | 90 |
| R Cygd | S6,6 | 3 | Yes | Yes | 426 | –8.12 | 550 |
| χ Cyge | S7,1 | 2 | No | Yes | 408 | –8.06 | 180 |
| ST Her | M6.5S | 3 | No | Yes | 148 | –5.65 | 300 |
| Y Lyn | M5S | 4 | No | Yes | 110 | –5.65 | 100 |
| T Sgrf | S5.5,6 | 3 | Yes | Yes | 395 | –8.00 | 790 |
Notes.
(b)
Tc first seen in this star (Merrill 1952).
(c)
Star too faint in the blue to observe for Tc. One of the longest period Mira stars, very strong Li line.
(e)
Atmosphere shows multiple layers (Wallerstein 1985).
References. (1) Ake (1979); (2) Keenan (1954); (3) Keenan & Boeshaar (1980); (4) Stephenson (1976).
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