Strange purple Aurora unraveled by scientists

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Странное фиолетовое полярное сияние разгадано учёными

A strange glow of purple hue, reminiscent of an ordinary Aurora and popularized by a canadian Amateur astronomer by the name of Notani Bourassa, filmed it on a Nikon camera, in the middle of 2016, was solved by the specialists, share your opinion with the edition Science Advances.

The rumor of such celestial beauty began to walk through the fans to watch through a telescope a few years ago, and still this topic remains relevant in the field of astronomy, not only among Amateurs, but professionals. For serious discussion of possible reasons for the appearance of purple lights team of researchers launched a special project, referred to as Aurorasaurus. Funding ideas started the official representatives of NASA and the National science Foundation.

In the course of this work, scholars at the beginning of Lisa MacDonald from the center of space flights of Goddard and not without the help of talented Amateur astronomers were able to see the true nature of strange celestial phenomena, which in the framework of advice on the Internet sites on the subject of astronomy was named Stive. However, this name cannot be considered official.

Having genuine pictures that are the handiwork of Bourassa, experts focused their attention on other photographs of similar incidents created through cameras installed to monitor the sky and Swarm — a European satellite that flew over the place where at this moment noticed Stive.

According to MacDonald, the origin of the mysterious phenomenon is strongly reminiscent of the usual origin of the Aurora appears in the background of the circulation of charged particles moving along magnetic lines of the Earth’s axis. And in the case of directly purple glow particles that move across the field in low latitudes are closer to the equator.

In addition, derived from satellite data allow astronomers to believe that Stive is a stream moving with incredible speed and consists of an incredibly heated particles, which are otherwise known as sub-auroral ion drift.

Before the same flows experts also studied, but previously they never connected with the heavenly bands of violet color, as the spacecraft had to its credit the cameras optical format.

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