Joe Jakarta wrote:
M100 is 56 million light-years' distance, and Hubble dicovered Cepheids
there 10 years ago.
http://www.seds.org/Messier/more/m100_hst2.html

So where's the fun in 11 million lyr??

Not sure what the significance is, the article stated only that this was
the first time Cepheids had been used to calibrate the distance to an
*elliptical* galaxy, as Centaurus A is. M100 is a spiral.

--
Brian Tung
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