Transcript Mapping the Stars.ppsx

Topic: Mapping the
Stars
PSSA: 3.4.7.D/S8.D.3.1
Objective:
•TLW use star patterns
and simple tools to
locate objects in the
night sky.
MI #1: Constellations
• Constellations are sections of the sky
that contain recognizable star patterns.
• Constellations help organize the night
sky because every star or galaxy is
found within one of 88 constellations.
• The locations of constellations in the sky
changes with seasons, however, their
location in relation to each other does
not change.
MI #2: Using an Astrolabe
• Zenith- this the imaginary point in
sky directly above the observer
(90°)
• Horizon – this is the line where
Earth and sky meet (0°)
• Altitude – the object’s angle
between the horizon and the zenith
MI #3: Path of Stars in the Night
Sky
• The apparent motion of the stars
across the night sky is due to the
rotation of the Earth.
• Circumpolar stars are stars that can
be seen year round (particularly at the
poles).
• Circumpolar stars appear to revolve
around Polaris (the North Star).
So What…? Real Life
Application
• Understanding where
constellations are
located allows you to find
stars and planets in the
night sky.