According to the International Meteor Organization during the period of maximum activity of Perseids on August 11 in 2016 zenithal hourly rate (ZHR) amounted to 250 meteors compared with 90-100 meteors in the last few years. According to the engineer of the NSU Observatory "Vega" Mikhail Maslov, one of the reasons for such activity is that the Earth passes through the tails of the Perseids parent comet Swift-Tuttle in 1862 and 1479.
- These tails were the dusty material ejected by Comet 109R / Swift-Tuttle when it was passing perihelions (Note: the point of the orbit closest to the Sun) in 1862 and 1479, respectively. Every time when the comet passes perihelion, it emits a certain amount of dust and larger particles, which begin to move further in their orbits, and due to radiation pressure from the Sun these particles line up in a very extensive and narrow tails. Tails are the areas of increased density of the particles in the flow structure, and if they approach the Earth, the increased activity bursts occur.The specialist of the NSU observatory notes that on the basis of the calculation of the tails鈥� orbital evolution scientists make meteor forecasts.
On the night of August 10 and August 11 in the area near Verkh-Irmen village of the Ordinsk district Mikhail Maslov managed to shoot 32 meteors. On August 13-14 in the area near the Tropino village (the Kolyvan district) there were 55 meteors and bolides shot, on August 14-15 in the same area there were 15 meteors shot.
The photos were taken with the camera Pentax K-3, Samyang lens 16 mm, F / 2.0, mount AZ-EQ6. Single frame settings are the following: 6 seconds shutter speed F / 2.0 ISO 12800
