#NGC 6590

[chibinotan]

Red and Blue Nebulae

[cosmicfocus]

IC 1283

Towards the galactic centre.

Nebula in Sagittarius Image exposure:180 MinutesImage Size:1.55º x 1.01ºImage date:2023-07-11 This image shows a very busy region of the Milky Way, located in the general direction of the galactic centre. IC 1283/1284 (centre) is an emission nebula about 17 arc-minutes in diameter, It is accompanied by two smaller reflection nebulae, NGC 6589/6590 (a double patch of nebulosity, one arc-min…

[astronomerinprogress]

Nebulosity in Sagittarius 

Credit & Copyright: D. Malin (AAO), AATB

Explanation: What causes the colors in this beautiful nebulosity in Sagittarius? Dubbed NGC 6589 and NGC 6590, the colors of this nebulosity, are caused by gas and dust. The blue color of the nebula nearest the bright stars is caused by reflection off interstellar dust. The dust emits little visible light of its own - in the absence of a nearby star the dust would appear dark, blocking light from background stars. The red color of the nebula farthest from the bright stars is caused by glowing hydrogen gas. Energetic light from the central stars ionizes hydrogen gas - which glows red when recombining with a local electron.