..over the region of Trento (Italia) and Innsbruck (Austria)
Photographed on 21/24-June-2017 in Germerswang, Fuerstenfeldbruck
Red Sprites over Austria 24-June 2017
On the 24th the lightning spectacle took place in the region of Innsbruck-Brennero in a distance of ca. 150-200 km
Cutouts of the video capture shows more details to the different shape of appearance
Sony a6300, 4K Video, Sigma 20mm, f1.4, ASA 3200, Exp. 1/6sec
Weather Situation on 24th June 2017, 00:15 credit to Sat2
Red Sprites over Trento/Italia 21-June 2017
Heavy thunderstorms and lightnings were detected on the 21rst of June by Sat24 over the ca. 260 km distanced region of Trento in Italia.
The composite (left) shows in front the city of Fuerstenfeldbruck
Sony a6300, 4K Video, Sigma 35, f1.4, ASA 3200, Exp. 1/6sec
The appearance of a Red Sprites takes less than 2/100 seconds, and could be very bright and be seen with the naked eye. However, the brightness is several times under a lightning discharge. 'Red Sprites' can appear on an average altitude of 60-80 km in the mesosphere. Also sightings to a height of 90 km to the edge of the ionosphere are possible. The height of the sprite can vary from 10 km to 20 km. The width of the discharge can reach up from 40 to 60 km.
But how does the rare luminous phenomena come to this name, when they were discovered and what is the reason of origin?
Until 1989, the existence of Red Sprites was generally denied because only jet pilots announced sporadic sightings. Here they reaped rather grumpy and sarcastic reactions :-(. Thus, many sightings have been omitted. 1989 the first Red Sprite photos did succeed, but due to the not yet advanced camera technology the results were scientifically useless.
1991 the astronauts of the former Space shuttle mission succeeded photographically to capture this phenomenon specifically the first time from space. These photos served as the first meaningful evidence. Afterwards high-tech peppered research aircrafts were inserted by very costly experiments from the NASA and NOAA, which should explain and analyze these phenomena further. After this efforts yielded no results for months, and the researchers literally get messed around with this situation, the called these discharges almost mischievously 'Sprites'.
Incidentally, we don’t have a plausible explanation of the origin of Red Sprites until today, but there are countless theories. Look out for the scientific article in the Washington post. The most common version declares that during heavy thunderstorms larger areas of electrical tension build itself up over the super cells, which consequently discharge due to the oversaturation by itself. The actual luminous phenomenon gets produced in the mesosphere by collision of electrons with the always present cosmic gamma radiation.
More Red Sprites info
More Red Sprite sightings
July-Aug-2017 21-24-June-2017 15-June-2017
11-July-2016 24-June-2016 6-June-2016 May 2016 August 2015