Bio/EPS/Phys 210Epic of Evolution
The Universe TodayThe Universe TodayThe Universe TodayThe Universe Today
Bio/EPS/Phys 210Epic of Evolution
Getting a sense of scaleGetting a sense of scaleGetting a sense of scaleGetting a sense of scale
“Powers of 10”(1977) by Ray and Charles EamesNarrated by Philip Morrison
http://powersof10.com/index.php?mod=watch_powersof10
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Bio/EPS/Phys 210Epic of Evolution
Km Light years
Radius of Earth 6378
Earth Moon distance 384,000
Earth Sun distance 1.5 X 108 (1 a.u)
Nearest star 4.1 X 1012 4.3
Center of the milky way 2.5 X 1017 26000
Nearest galaxy (Andromeda)
2 X 106 (2 Mly)
Virgo Cluster 5.3 X 107 (53 Mly)
Quasars 0.8 - 10 Bly
Cosmic background 13 Bly
Visible universe 13.2 Bly1 ly = speed of light X 1 year = (3 X 105 km/s) X (3.15 X 107 s)
= 9.5 X 1012 km
Getting a sense of scaleGetting a sense of scaleGetting a sense of scaleGetting a sense of scale
Bio/EPS/Phys 210Epic of Evolution
The solar systemThe solar systemThe solar systemThe solar system
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Oops! Sorry Pluto!
Footnote: over 400 exoplanets have now been detected!Footnote: over 400 exoplanets have now been detected!
Bio/EPS/Phys 210Epic of Evolution
Stars & the Milky WayStars & the Milky WayStars & the Milky WayStars & the Milky Way
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1011 stars100,000 ly acrossSpiral arms
1011 stars100,000 ly acrossSpiral arms
Bio/EPS/Phys 210Epic of Evolution
Galaxies & ClustersGalaxies & ClustersGalaxies & ClustersGalaxies & Clusters
AndromedaAndromedaM 31M 31
Virgo ClusterVirgo Cluster Hydra Cluster Hydra Cluster
Bio/EPS/Phys 210Epic of Evolution
Gas & DustGas & DustGas & DustGas & Dust
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Bio/EPS/Phys 210Epic of Evolution
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Gas & DustGas & DustGas & DustGas & Dust
Bio/EPS/Phys 210Epic of Evolution
ExoticaExoticaExoticaExotica
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SupernovaeNeutron starsPulsarsBlack Holes
Bio/EPS/Phys 210Epic of Evolution
ExoticaExoticaExoticaExotica
Colliding galaxiesSupermassive black holesColliding galaxiesSupermassive black holes
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3 billion solar masses3 billion solar masses
4 million solar masses4 million solar masses
A SMBH in theMilky WayA SMBH in theMilky Way
Bio/EPS/Phys 210Epic of Evolution
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ExoticaExoticaExoticaExotica QuasarsQuasars
Isotropy of the universeIsotropy of the universeIsotropy of the universeIsotropy of the universeSystem Distance Structure
Solar system 109 km Orbits
Galaxy 26 kly Spiral arms, core
Local group 3 Mly 17 galaxies
Virgo cluster 65 Mly >2000 galaxies
Local supercluster 300 Mly 100 clusters
Distant clusters 3 Bly Isotropic
Quasars 10 Bly Isotropic
CMB 13 Bly Isotropic to 10-5
Bio/EPS/Phys 210Epic of Evolution