La Galaxia M63: un girasol cósmico

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The arrangement of the spiral arms in the galaxy Messier 63, seen here in a new image from the NASA/ESA Hubble Space Telescope, recall the pattern at the centre of a sunflower. So the nickname for this cosmic object — the Sunflower Galaxy — is no coincidence. Discovered by Pierre Mechain in 1779, the galaxy later made it as the 63rd entry into fellow French astronomer Charles Messier’s famous catalogue, published in 1781. The two astronomers spotted the Sunflower Galaxy’s glow in the small, northern constellation Canes Venatici (the Hunting Dogs). We now know this galaxy is about 27 million light-years away and belongs to the M51 Group — a group of galaxies, named after its brightest member, Messier 51, another spiral-shaped galaxy dubbed the Whirlpool Galaxy. Galactic arms, sunflowers and whirlpools are only a few examples of nature’s apparent preference for spirals. For galaxies like Messier 63 the winding arms shine bright because of the presence of recently formed, blue–white giant stars, readily seen in this Hubble image.

The arrangement of the spiral arms in the galaxy Messier 63, seen here in a new image from the NASA/ESA Hubble Space Telescope, recall the pattern at the centre of a sunflower. So the nickname for this cosmic object — the Sunflower Galaxy — is no coincidence. Discovered by Pierre Mechain in 1779, the galaxy later made it as the 63rd entry into fellow French astronomer Charles Messier’s famous catalogue, published in 1781. The two astronomers spotted the Sunflower Galaxy’s glow in the small, northern constellation Canes Venatici (the Hunting Dogs). We now know this galaxy is about 27 million light-years away and belongs to the M51 Group — a group of galaxies, named after its brightest member, Messier 51, another spiral-shaped galaxy dubbed the Whirlpool Galaxy. Galactic arms, sunflowers and whirlpools are only a few examples of nature’s apparent preference for spirals. For galaxies like Messier 63 the winding arms shine bright because of the presence of recently formed, blue–white giant stars, readily seen in this Hubble image.

Esta imagen tomada por el Telescopio Espacial Hubble muestra a la Galaxia M63, la cual se asemeja al patrón central de un girasol. Por esta razón a este objeto cósmico se le conoce como la Galaxia del Girasol.

FOV Coordinates

M63 fue descubierta en 1779 por Pierre Mechain, eventualmente la galaxia fue incluida en el famoso catálogo de Charles Messier el cual fue publicado en 1781. M63 se ubica en la constelación de Canes Venatici a 27 millones de años luz de distancia. Pertenece al grupo galáctico M51.

La galaxia del Girasol

Los enormes brazos de M63 son brillantes por la presencia de estrellas recientemente formadas (estrellas azules y blancas gigantes), fácilmente visibles en esta imagen.

 

Crédito: NASA / ESA
Vía: eluniversohoy

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