Astronomy
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | a region of the sky with well defined borders
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| celestial sphere | show 🗑
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| North celestial pole | show 🗑
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| South celestial pole | show 🗑
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| show | projection of Earth's equator into space
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| show | path the sun follows
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| number of constellations | show 🗑
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| galactic plane | show 🗑
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| local sky | show 🗑
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| show | boundary between Earth and sky
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| show | point directly overhead
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| show | imaginary half-circle stretching from the horizon from N to S
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| show | direction of object along the horizon - measured in degrees
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| show | position of object from between earth and sky
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| show | angle that an object appears to span
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| angular distance | show 🗑
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| arcminutes | show 🗑
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| arcseconds | show 🗑
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| show | stars that never rise but make daily counterclockwise circles
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| show | measures N to S
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| longitude | show 🗑
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| show | line of longitude at 0 degrees - runs through Greenwich, England
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| sky visibility | show 🗑
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| show | constellations along the ecliptic
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| show | summer solstice, winter solstice, spring equinox, fall equinox
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| show | a gradual wobble that changes the orientation of Earth's axis
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| show | new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, waning crescent
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| show | moon must rotate once as it makes a single orbit around the Earth
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| lunar eclipse | show 🗑
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| show | moon's shadow falls on earth
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| show | two points at which the moon crosses the surface of the earth
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| umbra | show 🗑
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| penumbra | show 🗑
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| show | moon passes through earth's umbra - moon turns red
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| partial lunar eclipse | show 🗑
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| penumbral lunar eclipse | show 🗑
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| show | moon comes between sun and earth - moon looks black
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| partial solar eclipse | show 🗑
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| annual eclipse | show 🗑
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| show | two periods where the nodes of the moon's orbit are aligned with the sun
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| saros cycle | show 🗑
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
sgw005
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