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41 terms

Test 1A

A seemingly impossible and impassible test presented and graded by Mr. Ed Martin . . . Good Luck:)
STUDY
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constellation
a small group of stars in a noticable pattern. ex., ursa major, taurus, orion
asterism
a smaller group of stars within a constellation in a noticable pattern. ex., the big dipper in ursa major, the tea pot in saggitarious
galaxy
a large natural group of stars held together by gravity. ex., our galaxy is the milky way
celestial
of or partaining to the heavens or sky. ex., a planet, a star
azimuth
is the angle measured from the zenith from true north to a celestial object. Ex., north=0 degrees, east= 90 degrees, south=180 degrees, west= 270 degrees
altitude
the angle above the horizen
latitude
latitudinal lines run east and west and circumvent the globe. Measureed in degrees. 10/15 degree increments. maximum latitude is 90 degrees
longitude
run north ad south. measured in degrees. prime meridian runs through Greenwich, England, and is at 0 degrees longitude. 15 degrees east and west of the Prime Meridian. International Dateline(where day changes) has longitude of 180 degrees E. or W.
declination
is the extension at latitude in to space. it is mesaured in degrees
right ascension
is the extension of longitude into space. measured in hours, minutes, seconds
equator
0 degrees latitude. latitude is measured n/s of it.
prime meridian
runs through Greenwich, England. 0 degrees longitude
meridian
lines running n/s on the globe, measured e/w of the prime meridian, approximately 15 degrees apart from eachother, 24 encircle the earth
Greenwich, England
the city inwhich the prime meridian runs through is at 0 degrees longitude
international dateline
where day changes has a longitude of 180 degrees e or w
degrees/ hours
are devided into minutes, which are further devided into seconds
zenith
the point directly overhead= altitude of 90 degrees
ecliptic
the apparent path of the sun. (the earth rotates, giving the illlusion that the sun moves across the sky from the east to the west)
how many degrees are in a circle? how does this relate to astronomy?
360 degrees- the lones of latitude and longitude extend into space
a timezone is 15 degrees why?
because there is 360 degrees around the globe, and 24 hours in a day
what are the north and south poles latitudes?
N=90 degrees N. latitude S=90 degrees S. Latitude
what are the two ways of locating celestial objects in the sky?(2)
1. Declination and right ascension 2. altitude and azimuth
what constellations are currently in the sky?
scorpious, saggittarious, ursa major, capricorn, pegasis, and Cassiopeia
what are some asteriums currenky in the night sky?
big dipper, little dipper, teapot
why are vconstellations impportant to astronimers even though they are artificial?
to locate other celestial objects
why do we say a galaxy is natural and a constellation is artificial?
you can't see depth in constellation, they just appear to allign a certian way, but the actual distances may vary.
will someone in earth and space help me on this definition, please?: what is the scientific significance of zodiac constellations? thanks
they are found along the ecliptic
what zodiac constellations are presently in the night sky?
libra, scorpius, saggitarious, capricorn, aquarious
aquarious=
water carrier
Pisces=
2 fish
aries=
flying ram
taurus=
the bull
gemini=
2 brothers
cancer=
crab
leo=
the lion
virgo=
maiden(goddess of the harvest)
libra=
scales
scorpius=
the scorpion
saggitarius=
the archer
capricorn=
the seagoat
how do you find Polaris in the night time sky?
find the big dippper and then you follow the front edge of the big dipper