Sasha1. side which is farthest from the Sun. And

Sasha1. How are we able to see the different kinds of objects in space (e.g. stars,planets, comets, asteroids, dwarf planets, etc.)? Is it because they producelight or reflect light?We can see objects in space because they reflect light from the closest star. The light bounces off the object and after some time comes to Earth. So our view of space is out of date. If an object does not reflect light, then we can detect them using radio waves, or by looking at objects around that object. They might hobble a bit on their axis because of the gravity of the object.2. Why do stars appear to move across the sky during the night? Which way dothey appear to move (east to west, or west to east) in the northernHemisphere?Stars appear to move through the night sky because of our frame of reference. The Earth rotates counterclockwise, but since we are on Earth, Earth appears to stay still and the sky looks like it’s moving. Since the Earth is rotating counterclockwise, the sky appears to move clockwise. So the stars seem to move from east to west. In the picture above, you can see that from the perspective of the person in the picture, the stars move east to west. 3. Why does the night sky appear to change throughout the year? Why can’t wesee some constellations during certain parts of the year? What are theseconstellations called?The night sky appears to change throughout the year because the Earth rotates. As you can see in the illustration below, It is daytime on the side on which the Sun shines. Since we cannot see the stars when it is daytime, The only place where we can view stars is on the side which is farthest from the Sun. And since the Earth rotates around the Sun, in different parts of our rotation, we can see different stars. Some of the stars that we can see only in some seasons are Orion (winter), Scorpio (summer), Andromeda (fall), and Hydra (spring). These constellations are called seasonal constellations, while constellations that we can always see like Polaris, are called Circumpolar.   4. List all the moon phases, in order, starting with a new moon. Why does themoon appear to have phases? What direction does the moon orbit around theEarth when viewed from the northern hemisphere?The moon phases in order are: new moon, waxing crescent, irst quarter, waxing gibbous, full moon, waning gibbous, and waning crescent. But actually, these aren’t the real moon phases. The Moon is always half illuminated. Just from earth we only see some parts. If you looked from a bird’s eye view, The only moon phase you would see is a half illuminated Moon. So it all depends on your perspective. The Moon orbits counterclockwise when looking at the northern hemisphere.5. Why does Earth have seasons? Why does the Sun’s angle above the horizonappear to change throughout the year? (Extra: use the term “frame ofreference)Earth has seasons because of its tilt (23.5 degrees). When the earth’s pole is pointing towards the sun, It is Summer in the northern hemisphere because the Sun’s rays hit more directly. When the pole is not pointing to either the Sun or away from the sun, it is Spring or Fall. And when the pole is pointing away from the sun, it is winter. The Sun seems to have different angles above the horizon because of our frame of reference. Since in Summer the northern hemisphere leans forward a bit, we see the Sun seems higher above the horizon. You can’t notice that you are leaning, so people thought for years that the sun was the one moving.6. What was the most interesting thing that you learned in this unit? How hasIt changed your view of the universe and your place within it?I think that the coolest thing that I learned was that Polaris will not always be the north star. After some time, Vega will become the pole star. It really changed my  view of the universe because I always thought that everything was constant. That Earth will always be the same and so will the sun. But after I learned that, It really made me understand that nothing in the universe is constant, and that after some time people will look back and say “wow, Polaris used to be the north star! That’s so weird!). That is probably what i found most interesting in sky scienceLinks: