Variable Star Observations by Nikola Antonov Meshtitsa, Pernik, Bulgaria (42.67, 23.00, 690 m) Current Telescope: Sky-Watcher P25012 EQ6 SynScan 250/1200 mm Camera: ZWO ASI533 MM Pro CMOS, 3008x3008 px Resolution: 0.6 arcsec/px Focal length: 1 200 mm Pixel size: 3.76 µm Field of view: 32' x 32' Filters: Baader Bessel Photometric BVR Email: nikola.antonov@iaps.institute