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Physical Environment > Milky Way Galaxy

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A Dwarf Satellite Galaxy in Sagittarius


R A Ibata et al
July 21 1994
Nature

Dynamics of the Galaxy


Ortwin E. Gerhard (Astron.Inst., Univ.Basel, CH)
Our Galaxy is a barred spiral. Recent work based on the COBE NIR data implies a small bulge-bar and a disk with a short scale-length. The corotation radius of the bar is in the range 3-4.5 kpc. The stellar density distribution beyond the end of the bar appears to be perturbed strongly by the Galaxy's spiral arms.

Galaxy Invading Milky Way; Apparently Contains Much Unseen Matter



Milky Way Galaxy Map


Nasa Image

Picture of Sagittarius Dwarf entering Milky Way




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