Sunspots and solar prominences, 1973

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Framed Print of Sunspots and solar prominences, 1973

Sunspots and solar prominences, 1973. Image from Skylabs solar telescope. Sunspots are relatively cool areas on the Suns surface, the photosphere. Their temperature is about 3800 degrees Kelvin, as opposed to around 5800 degrees on the rest of the photosphere, and they can measure as much as 50, 000 kilometres across. The number of sunspots is greatest at the point in the cycle of solar activity known as the solar maximum, which occurs roughly every 11 years. They form when magnetic field lines below the surface become twisted and protrude through the photosphere. Sunspots are closely associated with the occurrence of solar flares, or prominences, massive eruptions of ionized hydrogen gas, often larger than the Earth, which arch away from the surface of the Sun. Some violent flares called Coronal Mass Ejections interact with the Earths magnetic field and can disrupt radio communications and produce spectacular aurora displays. Heritage Images features heritage image collections. © Oxford Science Archive / Heritage-Images

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Media ID 14863824

1970s Nasa Oxford Science Archive Prominence Radiation Seventies Skylab Solar Astronomy Solar Flare Space Space Station Star Sunspot

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Modern Frame 14"x12" (36x31cm)

Ready to Hang Contemporary Framed Prints adds style, protection, and a polished touch to your space - effortlessly.

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Wood effect frame, card mounted, 10x8 fade resistant photo print. Overall outside dimensions 14x12 inches (36x31cm). Environmentally and ozone friendly, 40mm wide x 15mm Polycore® moulding has the look of real wood, is durable and light and easy to hang. Biodegradable and made with non-chlorinated gases (no toxic fumes) it is efficient; producing 100 tons of polystyrene can save 300 tons of trees! Prints are glazed with lightweight, shatterproof, optical clarity acrylic (providing the same general protection from the environment as glass). The back is stapled hardboard with a sawtooth hanger attached. Note: measurements provided are estimated outer dimensions, which include both the image and the frame. While we aim to keep sizing consistent, exact dimensions may vary slightly due to differences in print size or production requirements, which may result in a variation in the overall size (up to approximately 2.5cm (1"))

These are individually made so all sizes are approximate

Estimated Image Size (if not cropped) is 21.3cm x 19.3cm (8.4" x 7.6")

Estimated Product Size is 36cm x 31cm (14.2" x 12.2")