Chapter 1. 144 Planetary Orbits

Question Daytime and Nighttime Planets

nRzfXPsvJvIvGuxWpbaohplEmrIBlrizTIiEDrijFEDvKSLfrRycY9xwSRKdLaaXauACfTztXYfGsMCfzcSLX6Dnv9fWOOUfSbnJupn/tRfV777DU/74U2/HV/OqqS6xuRi8ifADOX7qedhn+iBA+XhwM50oAeGUpisnup6TzhDLBtBuRnXaez2Zk3B3u+sgefkil/gNmyuPcBiQe/1nUr67qjfIXifChuMRsFavD4TDAlgKIvr8yM+EHHPR/XyBVTPkQ7UXoVstSm/P4TqZSuiTJsJc22HE {"title":"planet","description":"There's more than one planet on the \"daylight\" side of the Earth. Make sure that you click on all of them.","type":"correct","color":"#99cc00","code":"[{\"shape\":\"circle\",\"coords\":\"173,84,11\"}]"} {"title":"planet COPY","description":"There's more than one planet on the \"daylight\" side of the Earth. Make sure that you click on all of them.","type":"correct","color":"#993300","code":"[{\"shape\":\"circle\",\"coords\":\"152,135,10\"}]"} {"title":"planet COPY COPY","description":"There's more than one planet on the \"daylight\" side of the Earth. Make sure that you click on all of them.","type":"correct","color":"#333300","code":"[{\"shape\":\"circle\",\"coords\":\"173,186,9\"}]"} {"title":"planet COPY COPY COPY","description":"There's more than one planet on the \"daylight\" side of the Earth. Make sure that you click on all of them.","type":"correct","color":"#000080","code":"[{\"shape\":\"circle\",\"coords\":\"290,135,8\"}]"} {"title":"planet COPY COPY COPY COPY","description":"There's more than one planet on the \"daylight\" side of the Earth. Make sure that you click on all of them.","type":"correct","color":"#333333","code":"[{\"shape\":\"circle\",\"coords\":\"350,134,8\"}]"} {"title":"planet COPY COPY COPY COPY COPY","description":"\"Daylight\" occurs on the side of the Earth that is facing the Sun. This planet is on the side of the Earth that is turned away from the Sun. Try again.","type":"incorrect","color":"#800000","code":"[{\"shape\":\"circle\",\"coords\":\"98,134,7\"}]"}

Question Planets at Night

UBGHqA4i8FWUJL8C6zwHjcTZe6vPOt5PM0hfuBH9PxbnBNr8Lg0zTUt8MoD4V/kgJksjWBEJE/nrNhvt {"title":"selection","description":"That's right. The only way that a planet can be seen at midnight is if it is at zenith on the side of the Earth that is most turned away from the Sun.","type":"correct","color":"#99cc00","code":"[{\"shape\":\"circle\",\"coords\":\"98,134,10\"}]"} {"title":"selection COPY","description":"A planet at that position is on the side of the Earth that is facing the Sun. It's not midnight there. Try again.","type":"incorrect","color":"#993300","code":"[{\"shape\":\"circle\",\"coords\":\"174,82,9\"},{\"shape\":\"circle\",\"coords\":\"152,134,8\"},{\"shape\":\"circle\",\"coords\":\"173,184,10\"}]"} {"title":"selection COPY COPY","description":"A planet at that position is on the other side of the Sun from the Earth. If you could see that planet, it would be at noon, not at midnight.","type":"incorrect","color":"#333300","code":"[{\"shape\":\"circle\",\"coords\":\"349,132,10\"},{\"shape\":\"circle\",\"coords\":\"291,134,9\"}]"}

Question "The Morning Star"

EAHKJfO4PuhkdLJKqbJXFt+L308M5ZNRpD/1bD1s0PvrbAsdkKeVB80oH6qDs8YHG+ghsqvYfTVqUQ9SA9YFQidfspdyFgWhYHogC0D0ADYFteJbI5D+11hBmCYpm6GZ3j804i0at/xNIPd9o5b0yR9afgWzz4fwjwqlGGYpajF8+JGGGbN6fpT2zZxBw+ej5ac0QEPubxuF7ev7+AQFooXGhFDYw/3eOMsyHCN07HTOtyEkf3a05FvwuocyMaRc0S42CzGFV1l1DV7mxr40FXEirc9/2ddDCV2MoFUzov8+K3JpUDwWZw== {"title":"selection","description":"If we are looking at this system from above the North Pole, then the Earth is spinning counterclockwise into the sunlight. That means that the portion of the Earth that is nearest to the bottom of the image is experiencing dawn. You picked the planet that would be seen \"rising\" at dawn: The Morning Star. (By the way, the planet at opposition would appear to be setting in the West at dawn.)","type":"correct","color":"#99cc00","code":"[{\"shape\":\"circle\",\"coords\":\"175,186,9\"}]"} {"title":"selection COPY","description":"Technically, this isn't a wrong choice. On the other hand, it's not the best choice. A planet like Venus or Mercury can be seen on the edge of the dawn horizon, when in this position. However, they can't been seen very well. In fact, they are so difficult to see that you most often have to use a telescope to see a planet in this position, and then you have to be careful not to look at the Sun while doing it. This is not the \"Morning Star\" position. You're getting credit, but try again to see if you can determine a better answer.","type":"incorrect","color":"#993300","code":"[{\"shape\":\"circle\",\"coords\":\"151,134,8\"}]"} {"title":"selection COPY COPY","description":"There planet is not visible at dawn. To think about this, imagine that you are above the North Pole as you see this system. Then, decide which way the Earth is spinning. Remember that dawn occurs at the point on Earth where we are turning out of the darkness and into the sunlight. Try again.","type":"incorrect","color":"#333300","code":"[{\"shape\":\"circle\",\"coords\":\"174,85,7\"}]"} {"title":"selection COPY COPY COPY","description":"This planet is on the other side of the Sun from the Earth. If you could see them (which is really, really tough), it would have to be around noontime. To think about this, imagine that you are above the North Pole as you see this system. Then, decide which way the Earth is spinning. Remember that dawn occurs at the point on Earth where we are turning out of the darkness and into the sunlight. Try again.","type":"incorrect","color":"#000080","code":"[{\"shape\":\"circle\",\"coords\":\"290,133,11\"},{\"shape\":\"circle\",\"coords\":\"347,134,12\"}]"}

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