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Instructions for Side by Side Printing
  1. Print the notecards
  2. Fold each page in half along the solid vertical line
  3. Cut out the notecards by cutting along each horizontal dotted line
  4. Optional: Glue, tape or staple the ends of each notecard together
  1. Verify Front of pages is selected for Viewing and print the front of the notecards
  2. Select Back of pages for Viewing and print the back of the notecards
    NOTE: Since the back of the pages are printed in reverse order (last page is printed first), keep the pages in the same order as they were after Step 1. Also, be sure to feed the pages in the same direction as you did in Step 1.
  3. Cut out the notecards by cutting along each horizontal and vertical dotted line
To print: Ctrl+PPrint as a list

20 notecards = 5 pages (4 cards per page)

Viewing:

lecture 2

front 1

number of constellations according to the IAU

back 1

88

front 2

the ecliptic

back 2

the path the sun follows in the sky, crossing the equator at 23.5deg

front 3

zenith

back 3

point directly overhead

front 4

meridian

back 4

line running from north to south through the zenith

front 5

azimuth

back 5

direction along the horizon clockwise from north in degrees

front 6

altitude

back 6

height above the horizon in degrees

front 7

angular size

back 7

the angle an object appears to span in your field of view

front 8

angular distance

back 8

the angle that appears to separate 2 objects

front 9

angular size / 360deg =

back 9

= physical size / 2pi * distance

front 10

circumpolar

back 10

stars near the north celestial pole that never dip below the horizon

front 11

precession

back 11

gradual axial wobble that causes changes in earth's axis over timescales of 26,000 years

front 12

Right Ascension (RA)

back 12

much like lines of longitude on the earth's surface. measured going east from the vernal equinox in seconds, minutes, and hours

front 13

Declination (dec)

back 13

much like lines of latitude on earth's surface. measured north (+) or south (-) of the celestial equator in degrees, arcminutes, and arcseconds.

front 14

the position of Vega during the vernal equinox

back 14

Celestial Position:

Dec = +38deg44'

RA = 18h35m

front 15

waxing

back 15

moon phases from new to full

front 16

waning

back 16

moon phases from full to new

front 17

crescent

back 17

phases before / after new moon

front 18

gibbous

back 18

phases before / after full moon

front 19

stellar parallax

back 19

apparent shift in the position of nearby stars from different parts of earth's orbit

front 20

retrograde motion

back 20

planetary motion relative to stars appears to move backwards then forwards periodically from the perspective of earth.