I don't know why I got millions reduced to thousands and billions to millions. I looked up the mass of M87 BH and I find 2.5 billion solar masses.
LC On Wednesday, April 10, 2019 at 7:12:13 PM UTC-5, John Clark wrote: > > > > On Wed, Apr 10, 2019 at 7:46 PM Lawrence Crowell <goldenfield...@gmail.com > <javascript:>> wrote: > > >> > We will have to see what the Sgr*A image looks like of the Milky Way >> BH that is smaller, 104 thousand solar masses vs 2.5 million solar masses >> for M87*, but is closer only 27K light years, vs 55 million lyrs. >> > > > Sgr*A is 4.5 million solar masses, the Black Hole in M87 is 6.5 billion > solar masses. From the earth they would have almost the same size even > though one is much closer than the other. And any radio telescope can > observe M87 but only those in the southern hemisphere can see Sgr*A. There > is probably less obscuring dust between us and M87 too because we don't > have to look through the long axis of our galaxy to see it. > > John K Clark > > > > > > > >> -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
