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Table 1
Limiting magnitude for an unbalanced binary star observation.
| D (cm) | M s | M c |
|
|
||
| 20 | 6.4 | 16.4 |
| 30 | 7.3 | 17.3 |
| 40 | 7.9 | 17.9 |
| 50 | 8.4 | 18.4 |
Notes. D is the diameter of the mirrors. Ms is the magnitude of the main star required to have 200 photons per frame. Mc is the limiting magnitude of the companion.
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