Solar system, assemblage consisting of the Sun and those bodies orbiting it: 8 planets with about 210 known planetary satellites; many asteroids, some with their own satellites; comets and other icy bodies; and vast reaches of highly tenuous gas and dust
Diagrams drawn for the same stars with colour instead of temperature plotted against magnitude give similar results and are calledcolour-magnitude diagrams. Colour-magnitude diagrams drawn for stars from other parts of the Milky Way Galaxy—e.g.,globular clusters—show different patterns from that for...
Ch 10. Gaseous Planets in the Solar... Ch 11. Comets, Moons & Asteroids Ch 12. Understanding the Science of the... Ch 13. Types of Stars in the Universe Ch 14. Formation & Evolution of Stars Ch 15. Stellar Death & Remnants Ch 16. Formation & Structure of the Milky... Ch 17. ...
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Spiral galaxies transit from being to the left of this line in their internal regions to being to the right of it as one moves away along their disks. For the Milky Way, we see the Solar radius appearing slightly to the right of the 𝑟=𝑟𝑀r=rM threshold, consistent with the ...