Saturday, 13 August 2011

Photo Gallery: Sun


Glowing Sun:-

Photo: Loop on the sun
An enormous magnetic loop of hot gases creates a glowing handle on the sun. The June 9, 2002, prominence was caused by explosive instabilities in the sun's magnetic field.

Coronal Loops:-

Photo: Coronal loops on the sun
Magnetism made visible: That describes virtually every feature on the sun, from sunspots to these soaring structures, called loops. Loops easily reach the height of ten Earths. Energy generated by the dynamics of smaller loops is likely the source of the solar corona's mysterious heat. The superheated gases that form the sun, mainly hydrogen and helium, exist in an electrified state called plasma. Below the surface, plasma can push and drag magnetic field lines. But when lines are strong enough to arc out, wildly conductive plasma follows.

Sunspot Loops:-

Photo: Sunspot loops

Sun Storm:-

Photo: Sun storm
The sun-orbiting SOHO spacecraft captured this snapshot of the development of a coronal mass ejection (CME), an explosive sun storm. It shows erupting filaments lifting off the active solar surface and blasting enormous bubbles of magnetic plasma into space. CMEs occur anywhere from once a week to two or more times a day, and they can profoundly influence space weather.

Composite Sun:-

Photo: Sun
This SOHO image is in extreme-ultraviolet wavelengths, color-coded by temperature, with red showing the hottest. Why is the halo-like corona, visible from Earth only during a total eclipse, hundreds—even thousands—of times hotter than the sun's surface? That's one of the questions that keep scientists looking straight at the sun..
Aurora Magnetosphere:-
Photo: Aurora on the Earth
An aurora glows from the Earth's magnetosphere, as seen from the International Space Station. The spectacular light show was caused when a coronal mass ejection (CME), or a huge cloud of hot plasma from the sun, hit the Earth's magnetosphere.

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