Yes, that's a nice Milky Way image (with stairs)! ![:D]( "Very Happy")
Me being me, I obviously love the blue zing of bright star Vega at top!![💙]()
But I'd also like to call your attention to the reddish patch of nebulosity around Deneb:
I believe that this reddish patch is the northern bar-end enhancement of the Milky Way. So what's a galactic bar-end enhancement? It's the part of a barred spiral galaxy where the bar meets the spiral arm. This particular part of a barred spiral often displays enhanced levels of star formation, like this:
Astronomer and astrophotographer David Malin told me once, in private conversation, that there are two parts along the band of the Milky Way where the bar meets the spiral arms, and these two sites display enhanced star formation. One of these sites is in Cygnus near Deneb and Sadr. The other one is in Carina.
Or perhaps it is NGC 3603 (and maybe NGC 3576) that are the bar-end enhancements of the southern Milky Way? Well, we are still in Carina.
And when the galactic evolution has run its course, and star formation has long since come to an end, the bar-end enhancements may still be visible.
Ann
Me being me, I obviously love the blue zing of bright star Vega at top!
But I'd also like to call your attention to the reddish patch of nebulosity around Deneb:
I believe that this reddish patch is the northern bar-end enhancement of the Milky Way. So what's a galactic bar-end enhancement? It's the part of a barred spiral galaxy where the bar meets the spiral arm. This particular part of a barred spiral often displays enhanced levels of star formation, like this:
NGC 6217 with bar and bar-end enhancement.
Credit: NASA/ESA/Hubble.
Credit: NASA/ESA/Hubble.
Astronomer and astrophotographer David Malin told me once, in private conversation, that there are two parts along the band of the Milky Way where the bar meets the spiral arms, and these two sites display enhanced star formation. One of these sites is in Cygnus near Deneb and Sadr. The other one is in Carina.
Or perhaps it is NGC 3603 (and maybe NGC 3576) that are the bar-end enhancements of the southern Milky Way? Well, we are still in Carina.
And when the galactic evolution has run its course, and star formation has long since come to an end, the bar-end enhancements may still be visible.
Ann
Statistics: Posted by Ann — Wed May 29, 2024 5:48 am — Replies 1 — Views 59