From the National Optical Astronomical Observatories
M104 (NGC 4594), is a spiral galaxy, type Sa/Sb, in the constellation Virgo, popularly known as the Sombrero Galaxy due to its dark rim of obscuring dust around a large central bulge. The dust shows up as brown due to its absorption of blue light (an effect known as reddening), while the bulge has been reduced in significance by compressing the dynamic range of the data, better to show the inner details.
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Last Modified On: Sunday, December 17, 2000