1. Why are all the modern constellations in the Southern Sky?
Because our knowledge of astronomy was based on Western civilization, which doesn't
include the southern sky.
2. What does the Greek lettering system tell you about a star that its name doesnt?
Phases of the Moon
Today we are going to study the phases of the moon. Figure 1 shows the Earth, the Sun and five
different possible positions for the moon during one full orbit (dotted line). It is important to recall that
one half of the Moons surface i
Using the program Stellarium find the star Thuban and click on the star and record its RA and Dec for Today.
Then put in the date (-2560) when the pyramids of Giza were built. Now click on the star Thuban and record its
RA and Dec then.
Today we will look at the concept of Parallax and how you can measure the distance
to nearby stars. Watch the following video at: (or scan the code on your smart
In the above Right trian
The circumpolar sky
What is the definition of a circumpolar star?
Circumpolar stars are visible nearly every night of the year because of its
proximity to one of the celestial poles.
Name three circumpolar constellations that are named in the video
Chapter 5 Astronomy The Formation of Stars and Planets
Stars and plants form from clouds of dust and gas.
Gravity pulls clumps of gas and dust together, causing them to shrink and heat up. Angular momentum
must be conserved, leading to both a spinning cen
Chapter 1 Astronomy Study Guide
Science is based on objective reality, physical evidence, and testable hypotheses.
Earth is a small planet orbiting a more or less average star, halfway out in the disk of a spiral galaxy that
is among billions.
Chapter 3: Study Guide
Newtons three laws in shorthand:
Inertia, F =ma
every action has an equal and opposite reaction Govern the motion of all objects.
Net forces- cause accelerations, or changes in motion.
Mass- is the property of matter that gives it i
Chapter 5- Vocabulary
Star- dense cloud of gas that produces energy in its core by fusing light atoms into heavier ones.
Kelvin Temperature Scale- Scientists measure the temperature of stars and other objects. Zero point- -273 k and boils at 373 k
ALWAYS LOOKING FOR PLANETS WITH WATER
OUR SOLAR SYSTEM AND
OUR TERRESTRIAL SOLAR SYSTEM
AND THEN THERE WAS PLUTO, PLANET 9 .
All the planets rotate in a prograde direction,
Know what supercooled water is
Freezing rain is a result of supercooled water. It happens when water is in a liquid state below 32 degrees
Fahrenheit. Supercooled water is a part of the Bergeron process which takes place in cold clouds.
If you look at the moon with the naked eye you can see the man in the moon. Everyone knows
there is not actually a man in the moon. The appearance of a face I create by craters. Craters are bowlshaped scars on the moon. Most of the craters on th
25. Describe the three types of heat transfer (39)
The three types of Heat transfer are conduction, convection, and radiation. Conduction is the ability for
heat to transfer through an object, an example is the handle of a pot that on a burner. The heat c
Uranus and Neptune Weather
It is very hard to locate a weather system on Uranus. Only a few atmospheric features are
detectable and that is after extensive computer enhancements. The Voyager 2 found that only a few clouds
exist in Uranuss freezing cold up
The Laws of Motion
According to physicist and mathematician Isaac Newton there are three basic laws of motion. I
am going to use a Newtons cradle to explain to you how two of these laws work. The first law states An
object at rest remains at rest, and a m
Radio astronomers use interferometry to improve angular resolution which makes it possible to make
radio images of much higher angular resolution than can be achieves with the best optical telescopes.
They are able to do this by using two o
Cosmologists are not sure of what causes the overall acceleration of the universe. They have
come to a conclusion that whatever it is, it is not matter or radiation. This mysterious cosmic force
carries energy, exerting an overall repulsive ef
The Components of The Electromagnetic Spectrum
The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to
frequency and wavelength. There are six components that make up the electromagnetic spectrum. In
order from longe
Instructions for Writing Assignment #1
Writing Assignment #1 is not due until February 12th. However over the next few weeks you can begin
working on the assignment. This week you should
work on Part 1. Begin writing your assignment on your computer this
Martian Volcanism and Water
The largest volcanos in the solar system are those that are on Mars. The Tharsis bulge contains 4
for of the largest volcanos. Over the left horizon in the northwestern slope of Tharsis, the largest
of these volcanos lies and i
According to the book galaxies that fall into the various Hubble classes are typically referred
to as normal galaxies. Up to 40% of the galaxies do not fit in the normal category, either
because of their spectra differ substantially from t
The evolution of a Protostar takes place in stage 4 in the stages of the formation of a star. It shrinks,
the density increases, and the temperature rises as it evolves in the core and the photosphere. It takes
roughly 100,000 years after the
The Sun in X-rays
Not only can an x-ray examine the bones and other things in our bodies, but it can also pick up the
million-kelvin coronal gas radiated from our sun. There is a special tool called an x-ray telescope that is
used to study the solar coron
The Pluto-Charon System
The U.S. Naval Observatory discovered Pluto has a satellite in 1978. They named it Charon after
the boatman to ferried dead bodies across the Styx River into Hades. It was discovered because there
was clearly two separate bodies in
I never knew this but if you look at the planetary orbits from a top view the spacing
between adjacent orbits of the planets roughly double as we move from the sun out. All planets
orbit the sun counterclockwise and lie on the same ec
1. Know the five basic temperature calculations and what they are used for (Page 60)
The five basic temperature calculations are the Daily mean temperature which is the average of the daily
temperature. The daily temperature range is the difference betwee
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Which of the following types of electromagnetic radiation has the longest wavelength?
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The mass of the electron, 0.000,000,000
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From the Earth, we observe occasional retrograde motion in the motion of
only the inner planets: Mercury and Venus.
only the outer planets: Mars and beyond.
all the planets.
all the planets and the Moon.
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