The Compass Rose and Azimuth Write the direction and degrees in the boxes provided. 0 (360) E 90 270 W S 180.

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Presentation transcript:

The Compass Rose and Azimuth Write the direction and degrees in the boxes provided. 0 (360) E W S 180

Azimuth azimuth This is the direction of a celestial object, measured clockwise around the observer's horizon from north. So an object due north has an azimuth of 0°, one due east 90°, south 180° and west 270°.

Altitude altitude The angle of a celestial object measured upwards from the observer's horizon. Thus, an object on the horizon has an altitude of 0° and one directly overhead has an altitude of 90°. Altitude is also frequently referred to as "elevation"

Other vocabulary Celestial object –object outside the atmosphere (planet, star) Horizon-The line where the sky and the ground seem to meet. (sun rises and sets) Zenith- Point on the sky directly overhead. Elevation -indicate the height of the observer above sea-level. Constellation – a group of stars that appear to make a pattern

Polaris –The North Star ursa majorand minor

Circumpolar Star Trails Over Bolivia - 2hr exposure

Gas Pillars in the Eagle Nebula (M16): Pillars of Creation in a Star-Forming Region hubble and night sky video NASA

ailid=17500&fileitem=2338&catfilter=452&PHPSESSID=d369ae2fc8f28d9a ac5d4d5ea9 hubble and night sky video

size of universe

finding polaris

dipper animation* constellations3 What direction should I look to see the Big and Little Dipper and Polaris?

aurora picsaurora pics.

orion

intro to constellations

Winter

Summer

Moon cal present phase navy data

ASTROLABE Instrument used to measure the altitude of a celestial object.

VOCABULARY Astronomy - study of universe, stars, planets, space Celestial object –object outside the atmosphere (planet, star) Horizon-The line where the sky and the ground seem to meet. (sun rises and sets) Azimuth –This is the direction of a celestial object, measured clockwise around the observer's horizon from north Altitude- The angle of a celestial object measured upwards from the observer's horizon Zenith- Point on the sky directly overhead. Elevation -indicate the height of the observer above sea-level. Apparent path of star – stars appear to move across the sky from east to west at a rate of 15 degree/hour because the earth is rotating Constellation – a group of stars that appear to make a pattern (88) Circumpolar stars – stars that appear to orbit around the poles and never set. Ecliptic – apparent path of the Sun against the background stars (12 constellations centered on ecliptic – zodiac)

The Astrolabe that the Portuguese navigators used on board ship to calculate the height of the Sun throughout the day. Using the astrolabe to measure the angle of the Sun above the horizon.

(kepler’s 3 rd and retrograde) hubble and night sky videohttp://hubblesite.org/ (good info) Doc (easr ramp –earth science teacher –good animationhttp:// Doc lunar, retrograde and earth animationhttp:// (big band and doppler) main.asp?s=00110&n=01000&i= &v=category&o=|02000|01000|&ns=0&uid=0&rau=0http://bcs.whfreeman.com/universe6e/pages/bcs- main.asp?s=00110&n=01000&i= &v=category&o=|02000|01000|&ns=0&uid=0&rau=0 (power of 10) build a solar system space station trackerhttp://