A galactic sunflower – Our Wide Sky

A galactic sunflower

November 11, 2017

Hubble Sunflower Galazy, M63

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.

Leave a Comment:

All fields with “*” are required

Fatal error: Uncaught ArgumentCountError: Too few arguments to function Jetpack_Subscriptions::comment_subscribe_init(), 1 passed in /home/booksfo6/public_html/ourwidesky/wp-includes/class-wp-hook.php on line 286 and exactly 2 expected in /home/booksfo6/public_html/ourwidesky/wp-content/plugins/jetpack/modules/subscriptions.php:602 Stack trace: #0 /home/booksfo6/public_html/ourwidesky/wp-includes/class-wp-hook.php(286): Jetpack_Subscriptions->comment_subscribe_init('') #1 /home/booksfo6/public_html/ourwidesky/wp-includes/plugin.php(208): WP_Hook->apply_filters('', Array) #2 /home/booksfo6/public_html/ourwidesky/wp-content/themes/storied/comments.php(67): apply_filters('comment_form_su...', '') #3 /home/booksfo6/public_html/ourwidesky/wp-includes/comment-template.php(1510): require('/home/booksfo6/...') #4 /home/booksfo6/public_html/ourwidesky/wp-content/themes/storied/partials/content-single.php(195): comments_template('/comments.php', true) #5 /home/booksfo6/public_html/ourwidesky/wp-includes/template.php(724): require(' in /home/booksfo6/public_html/ourwidesky/wp-content/plugins/jetpack/modules/subscriptions.php on line 602