Chapt.3 - science
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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| coordinate | a set of 2 numbers that specifies the location of a point on graph on a graph
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| celestial equator | the projection of the earth’s equator onto the celestial sphere
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| declination (DEC) | celestial latitude; angular distance north or south of the celestial equator measure in degrees
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| right ascension (RA) | celestial longitude; measured in hours, minutes, and seconds east of the prime hour circle
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| prime hour circle | the reference line for celestial longitude, extending from the north to the south celestial poles through the point of the vernal equinox
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| magnitude | the measure of the brightness of a star; a measure of the amount of energy released by an earthquake
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| red shift | - the difference in the observed wavelengths of light from a celestial body compared to the wavelengths emitted at the source
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| proper motion | - the portion of a star’s motion that is perpendicular to an observer’s line of sight
- the portion of a star’s motion that is perpendicular to an observer’s line of sight
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| radial motion | the portion of a star’s motion that is either directly toward or away from the observer
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| temperature | a measure of the average energy of motion of the atoms or molecules of a substance, stated in degrees; the measure of the hotness or coldness of an object
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| supergiant | classify the largest and most luminous stars
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| white dwarf | a very dense, very bright star of about the same mass as the sun but only about a hundredth of its diameter
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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:
elle_cottrell
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