Table 1
Characteristics of telescopes used.
| Telescope-observatory | λ, ϕ, h | Focal plane |
|---|---|---|
| LFOA (UW) | 48.1, 15.9, 880 | SBIG ST-10XME |
| Ritchey-Chrétien | 2184 × 1472 | |
| 1520/12500 | 6.8 × 6.8 | |
| 0.15 | ||
| 3.8 × 5.6 | ||
| TAROT (OCA) | 6.9, 43.8, 1270 | EEV 42-40 BI |
| Newton | 2048 × 2048 | |
| 250/800 | 13 × 13 | |
| 3.5 | ||
| 120 × 120 | ||
| TAROT (ESO) | 70.7,-29.3, 2347 | EEV 42-40 BI |
| Newton | 2048 × 2048 | |
| 250/800 | 13 × 13 | |
| 3.5 | ||
| 120 × 120 | ||
| TJO (OAdM) | 0.7, 42.1, 1570 | EEV 42-40 BV |
| Cassegrain | 2048 × 2048 | |
| 800/7680 | 13.5 × 13.5 | |
| 0.36 | ||
| 12.3 × 12.3 | ||
| ASV(AOB)/Milanković tel. | 21.5, 43.1, 1150 | Apogee Alta U42 |
| Ritchey-Chrétien | 2048 × 2048 | |
| Nasmyth, bent Cassegrain | 13.5 × 13.5 | |
| 1400/11420 | 0.24 | |
| 8.3 × 8.3 | ||
| ASV(AOB)/Nedeljković tel. | 21.5, 43.1, 1140 | Apogee Alta U42 |
| Cassegrain | 2048 × 2048 | |
| 600/6000 | 13.5 × 13.5 | |
| 0.46 | ||
| 15.8 × 15.8 | ||
| Rozhen (BAS) | 24.7, 41.7, 1730 | VersArray 1300B |
| Ritchey-Chrétien | 1340 × 1300 | |
| 2000/15774 | 20 × 20 | |
| 0.26 | ||
| 5.6 × 5.6 | ||
| Rozhen (BAS) | 24.7, 41.7, 1760 | FLI PL09000 |
| Cassegrain | 3056 × 3056 | |
| 600/7500 | 12 × 12 | |
| 0.33 | ||
| 16.8 × 16.8 | ||
| Belogradchik (AO) | 22.7, 43.6, 650 | FLI PL09000 |
| Cassegrain | 3056 × 3056 | |
| 600/7500 | 12 × 12 | |
| 0.33 | ||
| 16.8 × 16.8 | ||
Notes. LFOA (UW: Universitat Wien), TAROT (OCA: Observatoire de la Côte d’Azur, ESO: European Southern Observatory), TJO (OAdM: Observatori Astronomic del Montsec), and telescopes belonging to the Serbian-Bulgarian network (AOB: Astronomical Observatory of Belgrade, ASV: Astronomical Station Vidojevica, BAS: Bulgarian Academy of Science, AO: Astronomical Observatory). In the first column, we list the names of the observational stations and telescopes. The geographic coordinates (east longitude (in degrees) λ, latitude (in degrees) ϕ, and altitude (in meters) h) are given in the second column. In the third column, we list the CCD cameras, the number of pixels, the pixel sizes (in μm), the pixel scales (in arcsec/pixel), and the field of view (FoV, in arcmin).
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