From MANU: “IC 418, planetary nebula.”


Manu Garcia, a friend from IAC.

The universe around us.
Astronomy, everything you wanted to know about our local universe and never dared to ask.

11.6.17

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IC 418.

Dubbed the Espirógrafa Nebula for its resemblance to drawings from a cyclical drawing tool, planetary nebula IC 418 shows patterns that are not well understood. Perhaps they are related to chaotic winds from the variable central star, which changes the brightness unpredictably in few hours. On the contrary, the evidence indicates that a few million years ago, IC 418 was probably similar to our sun well understood star. Only a few thousand years ago, IC 418 was certainly a common red giant star, however , as the nuclear fuel is exhausted, the outer envelope has begun expanding outward leaving a hot remnant core destined to become visible in the center of the image as the white dot white dwarf,. The light excites the core surrounding atoms in the nebula causing shine. IC 418 lies about 2000 light – years away in the constellation Lepus and spans 0.3 light-years across. This false – color image taken from the Hubble Space Telescope reveals some unusual details.

Photo credit:
NASA/ESA, and equipment Hubble Heritage (STScI / AURA); Recognition: R. Sahai (JPL) et al.

NASA/ESA Hubble Telescope

See the full article here .

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