Chapter 1. Some Properties of Galaxies

Some Properties of Galaxies

Interactive Exercise
Moon Phases

Question

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Astro Table image
{"title":"Spiral (S) and barred spiral (SB) galaxies","description":"","type":"correct","color":"#999999","code":"[{\"shape\":\"circle\",\"coords\":\"186,57,20\"}]"} {"title":"Irregular galaxies (Irr)","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"628,57,20\"}]"} {"title":"Elliptical galaxies (E)","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"391,54,20\"}]"} {"title":"1 to 10","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"628,124,19\"}]"} {"title":"5 to 250","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"187,123,20\"}]"} {"title":"1 to 200","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"390,122,18\"}]"}

Question

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Astro Table image
{"title":"Spiral (S) and barred spiral (SB) galaxies","description":"Incorrect. Try again.","type":"incorrect","color":"#999999","code":"[{\"shape\":\"circle\",\"coords\":\"188,56,20\"}]"} {"title":"Irregular galaxies (Irr)","description":"","type":"correct","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"628,56,20\"}]"} {"title":"Elliptical galaxies (E)","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"390,56,20\"}]"} {"title":"1 to 10","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"628,125,19\"}]"} {"title":"5 to 250","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"187,123,20\"}]"} {"title":"1 to 200","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"389,124,18\"}]"}

Question

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Astro Table image
{"title":"Spiral (S) and barred spiral (SB) galaxies","description":"Incorrect. Try again.","type":"incorrect","color":"#999999","code":"[{\"shape\":\"circle\",\"coords\":\"188,56,20\"}]"} {"title":"Irregular galaxies (Irr)","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"629,57,20\"}]"} {"title":"Elliptical galaxies (E)","description":"","type":"correct","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"389,54,20\"}]"} {"title":"1 to 10","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"627,124,19\"}]"} {"title":"5 to 250","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"187,123,20\"}]"} {"title":"1 to 200","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"390,124,18\"}]"}

Question

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Astro Table image
{"title":"Spiral (S) and barred spiral (SB) galaxies","description":"Incorrect. Try again.","type":"incorrect","color":"#999999","code":"[{\"shape\":\"circle\",\"coords\":\"188,56,20\"}]"} {"title":"Irregular galaxies (Irr)","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"628,57,20\"}]"} {"title":"Elliptical galaxies (E)","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"391,57,20\"}]"} {"title":"1 to 10","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"628,123,19\"}]"} {"title":"5 to 250","description":"","type":"correct","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"187,123,20\"}]"} {"title":"1 to 200","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"391,124,18\"}]"}

Question

20D2LSvBIeg1/aRp7ecj3q3BVM8cQP0Vkl/aLLFWWbzyLBfB9Ey1GoQkWK3F8s/taalrQx2iBbQRSAa2rEIFAyQpIVe6nD55VWRZI65t3EsKulyO
Astro Table image
{"title":"Spiral (S) and barred spiral (SB) galaxies","description":"Incorrect. Try again.","type":"incorrect","color":"#999999","code":"[{\"shape\":\"circle\",\"coords\":\"188,56,20\"}]"} {"title":"Irregular galaxies (Irr)","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"628,57,20\"}]"} {"title":"Elliptical galaxies (E)","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"390,56,20\"}]"} {"title":"1 to 10","description":"","type":"correct","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"629,123,19\"}]"} {"title":"5 to 250","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"187,123,20\"}]"} {"title":"1 to 200","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"390,125,18\"}]"}

Question

++RJHgbNjimRMR41jOUbNhmzc8OVLqDK/OVLN1rrxEGctXpRpZzR1mRA525T8a6sKlCl2wptlNZJBb2AzmBOSsEe4sJPboWyTPUKOrQb5D6eTypl
Astro Table image
{"title":"Spiral (S) and barred spiral (SB) galaxies","description":"Incorrect. Try again.","type":"incorrect","color":"#999999","code":"[{\"shape\":\"circle\",\"coords\":\"188,56,20\"}]"} {"title":"Irregular galaxies (Irr)","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"629,57,20\"}]"} {"title":"Elliptical galaxies (E)","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"391,56,20\"}]"} {"title":"1 to 10","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"627,123,19\"}]"} {"title":"5 to 250","description":"Incorrect. Try again.","type":"incorrect","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"187,123,20\"}]"} {"title":"1 to 200","description":"","type":"correct","color":"#c0c0c0","code":"[{\"shape\":\"circle\",\"coords\":\"389,123,18\"}]"}