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Table 2
Photometric observations of V2493 Cyg field on different telescopes.
| Observatory/Telescope | Medium | Nr. of observations | Time span |
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|
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| Asiago Schmidt 67/92 and 40/50 | photogr. plates | 198 | 30. 8. 1962.–18. 11. 1998. |
| Palomar Schmidt | photogr. plates | 6 | 5. 7. 1954.–12. 9. 1994. |
| Byurakan Schmidt 100/130 | photogr. plates | 6 | 28. 8. 1973.–22. 6. 1977. |
| Rozhen Schmidt 50/70 | photogr. plates | 4 | 18. 6. 1980.–11. 1. 1991. |
| Rozhen Schmidt and Cass. | CCD | 105 | 29. 10. 2000.–6. 3. 2013. |
| Skinakas 1.3 m | CCD | 91 | 14. 6. 2000.–22. 9. 2012. |
| Rozhen 2 m RCC | CCD | 35 | 1. 6. 1997.–4. 5. 2013. |
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