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Photoelectric observations of lunar occultations at Engelhardt Astronomical Observatory

Photoelectric observations of lunar occultations at Engelhardt Astronomical Observatory

Non-contact optical Liquid Level Sensors

Spectral analysis of acoustic car noise

The comparative accuracy of photographic observations of radio stars observed at the Engelhardt Astronomical Observatory

Non-contact optical Liquid Level Sensors

The comparative accuracy of photographic observations of radio stars observed at the Engelhardt Astronomical Observatory

Studies of artificial airglow emission at 557.7 nm (green line) of upper atmosphere caused by "Sura" facility

Studies of artificial airglow emission at 557.7 nm (green line) of upper atmosphere caused by "Sura" facility

Simultaneous observations of the 557.7 nm airglow and stimulated electromagnetic emission during HF pumping of the ionosphere with diagnostic schedule: First results

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