38-cm Cassegrain telescope (К-380)
The telescope has a mirror of 38 cm in diameter, Cassegrain systems (F/13), it has been developed at the Crimean Astrophysical Observatory specially for photometric observations. Mirrors were polished by G.V. Borisov. Electro-mechanical components of the telescope were manufactured by engineers of CrAO A.N. Abramenko, G.A. Sivtsov and N.N. Okhmat. The telescope was mounted and put into operation in 1998. CCD SBIG ST-7 was used as a radiation receiver but in 2012 it was equipped with a new matrix Apogee Alta E47. In 2013 the telescope was repaired and control system was upgraded – this gave the opportunity of remote control over slow motion and exposure options of the telescope. The main objective of the telescope is photometric study of cataclysmic variable stars and related objects.
| Primary mirror diameter | 0.38 m |
| Focal length | 5 m |
| Optical systems | Cassegrain focus (f/13) |
| Equipment | CCD camera Apogee Alta E47 and turret with BVRI filters |
| Coordinates | 44°43′13″ N; 34°01′11″ E |
50-cm Maksutov telescope (МТМ-500)
| Primary mirror diameter | 0.5 m |
| Focal length | 6.5 m |
| Optical systems | Maksutov (f/13) |
| Equipment | CCD-camera in the coude focus |
| Coordinates | 44°43′35″ N; 34°00′55″ E |
Equipment
CCD-camera Apogee Alta U6
Characteristics
| Sensor | Kodak KAF1001E |
| Focusing device | 2″ Optec TCF-S Focuser |
| Filter wheel | Apogee FW50-9R with UBVRI filters |
| Frame size | 1024×1024 pixels, 12′.2×12′.2 |
| Pixel size | 25 μm, 0″.71/pixel |
| Readnoise | 6.0 e- |
| Gain | 1.5 |
| Bias | 1231 |
| Well Depth | 97000 e- |
| Dynamic resolution | 16 bits |
| Cooling | Delta - 50°C. Operating temperature: -20°C |
| Achieving magnitude with a total exposure of 5 min (by summing 5 frames with 60-second exposure each one) | 17m.5 (R band) |
In 2014 a CCD camera with a set of UBVRI filters was mounted on the telescope and systematic observations of exoplanet transits were started.
48-inch reflecting telescope of the Carl Zeiss Jena company
48-inch (122-centimeter) telescope of the Carl Zeiss company is the oldest telescope of the Crimean Observatory. The control system of the telescope is currently being modernized.
| Primary mirror diameter | 1.22 m |
| Focal length | 8.4 m |
| Optical systems | Cassegrain focus (f/20) |
| Equipment | |
| Coordinates | 44°43′37″ N; 34°00′56″ E |
80-cm Ritchey-Chretien telescope (RK-800)
| Primary mirror diameter | 0.8 m |
| Focal length | 12.8 m |
| Optical systems | Ritchey-Chretien focus (f/16) |
| Equipment | CCD-camera |
| Coordinates | 44°43′34″ N; 34°00′52″ E |
The telescope has been under reconstruction since 2014.
Astronomical Reflecting Telescope 11 (AZT-11)
1.25-meter Ritchey-Chretien reflector with a focal length of 16 m has two focuses and intended for photometric and polarimetric observations. 5-channel photopolarimeter developed by V. Piirola is mounted at the main focus, CCD-photometer - at the auxiliary focus. The telescope is used for photometric and polarimetric observations of various space objects: variable stars of different types, active galactic nuclei, asteroids, comets.
| Primary mirror diameter | 1.25 m |
| Focal length | 16 m |
| Optical system | Ritchey-Chretien (f/12.8) |
| Equipment |
Photopolarimeter by V. Piirola CCD with a focus reductor |
| Coordinates | 44°43′37″ N; 34°01′02″ E |
Equipment
CCD-camera ProLine PL230
Characteristics
| Sensor | e2v CCD230-42 |
| Focusing device | Digital Atlas Focuser |
| Filter wheel | CFW-2-7 with UBVRI filters |
| Frame size | 2048×2048 pixels, 10′.9×10′.9 |
| Pixel size | 15 μm, 0″.32/pixel |
| Readnoise | 12.9e- |
| Gain | 1.94 |
| Bias | 1025.3 |
| Well Depth | 125194.0 e- |
A focus reductor for the CCD photometer developed by Valeriy Yuzefovich Terebizh and manufactured at the optical workshop of CrAO was mounted in September 2014.