# The Universe Movie Guided Notes

```The Universe – Season 2, Episode 10 – Constellations http://www.history.com/shows/theuniverse/videos/the-universe-constellations
Constellations teach us about stars, directions, &amp; seasons/time . . .
Are the stars that make up the Orion
constellation equal distance from Earth? ____
D_ _ _ _ _ _ _ is the most difficult question
The 3 great pyramids of Egypt are said to be
lined up to the 3 stars in O _ _ _ _ _ B _ _ _ .
What is the Ecliptic Plane and why is it called
this? ________________________________
_____________________________________
\
This sextant was used by m _ _ _ _ _ _ _ to navigate using “guide stars” like
Polaris, commonly known as the N _ _ _ _ Star. _ _ _ has replaced sextants.
Write an explanation of Precession and draw the diagram on page 625 of your
textbook using about half of the back of this sheet.
The C_ _ _ _ _ _ _ _ G_ _ _ is a coordinate grid that
shows position and direction in space from the Earth’s
perspective, but it does not tell ____________.
Lines of declination on the celestial grid correspond
to the lines of ______________________ on Earth.
Lines of right ascension on the celestial grid correspond
to the lines of ______________________ on Earth.
Just like your eyes look at the same object from two
different positions, Astronomers look at a star from
Earth’s orbit ______ months apart to measure the
parallax ____________. The problem is that these
angles are too _ _ _ _ _ , so astronomers often use
Cepheid “variable” S _ _ _ _ or S _ _ _ _ _ _ _ _ _ _ .
Draw a diagram of Parallax using the remaining half
of this sheet – see page 702 in your textbook.
The difference between the apparent magnitude
of a star and its absolute magnitude or actual
luminosity is _____________________________
_______________________________________?
```