Sagittarius Dwarf Spheroidal Galaxy

The Sagittarius Dwarf Spheroidal Galaxy is a small dwarf galaxy that is located near the galactic plane of the Milky way galaxy. It was discovered in 1994 by three scientists (officially), Rodrigo Ibata, Mike Irwin, and Gerry Gilmore, and is observed to be elongated. This is due to the galaxy passing through and generally staying close to the galaxy for millions of years, with it being excepted to merge with the Milky way galaxy within the next billion years. Based on data, it is concluded that whenever the galaxy passes through the galactic plane (this goes for any galaxy as well), that it triggers an age of star formation in the region that it passes through. This galaxy still has star formation currently in it, with an amount of stars being observed to be only a few mya old. There are of course way more older stars in this galaxy, and some of these stars exist in one of the 7 star clusters observed here, M 54 is the central one that you most likely seen in the image next to this small blurb.
Category:Real objects
Category:Galaxies
Category:Objects