These Stars Are All The Same

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Kendrick Lamar, SZA - All The Stars (Lyrics)

Posted Jan 20, Started by Jonathan Jun 25, Replies: Edit Cast Credited cast: Eddie Buchanan Johnston Hilary Chandler Widow Elizabeth Aubuchon John Colbert Roy Karen Fiorino Marianne Aubuchon Bill Hamer Francois Valle Dan Johnson Town Gossip 1 Mike Lescelius Jaulin La Rochelle John Mefford Doctor Laffont Gabriel Neely-Streit Laurens Peterson Sherri Perry Henriette Georgianna Richey Madame Valle Brian Smith Celadon Allie Stevens Lisette Morgan Robert G.

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Clear your history. Outside that, there are millions upon millions of other galaxies also! It has been said that counting the stars in the Universe is like trying to count the number of sand grains on a beach on Earth.

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We might do that by measuring the surface area of the beach, and determining the average depth of the sand layer. If we count the number of grains in a small representative volume of sand, by multiplication we can estimate the number of grains on the whole beach. For the Universe, the galaxies are our small representative volumes, and there are something like 10 11 to 10 12 stars in our Galaxy, and there are perhaps something like 10 11 or 10 12 galaxies.

With this simple calculation you get something like 10 22 to 10 24 stars in the Universe. This is only a rough number, as obviously not all galaxies are the same, just like on a beach the depth of sand will not be the same in different places. No one would try to count stars individually, instead we measure integrated quantities like the number and luminosity of galaxies.

ESA's infrared space observatory Herschel has made an important contribution by 'counting' galaxies in the infrared, and measuring their luminosity in this range — something never before attempted. Knowing how fast stars form can bring more certainty to calculations. Herschel has also charted the formation rate of stars throughout cosmic history.