Astronomy HOMEWORK Chapter 1 9th ed 5. In Figure 1-8, what is another name for the “Sun’s annual path?” Ecliptic. This term also refers to the mathematical plane of Earth’s orbit. 10. By about how many degrees does the Sun move along the ecliptic each day? The Sun moves 360 degrees in 365.25 days along the ecliptic, so Degrees per day = (360◦ )/365.25 days = 0.986◦ = 1◦ . Round to 1 degree since the question says “about how many...” 14. What are the vernal and autumnal equinoxes? What are the summer and winter solstices? How are these four events related to the ecliptic and the celestial equator? The equinoxes are the points on the celestial sphere where the ecliptic and celestial equator intersect. The vernal equinox is the point where the sun crosses the celestial equator northbound.…
It is easy to flip to the index of an astronomy textbook to discover that, say, the Sun lies 150 million kilometers away from Earth. It is far more difficult (if not impossible), however, to picture this distance in the human mind. In this exercise, we will learn to access the often unpalatable distances encountered in astronomy by simply scaling the huge distances to more recognizable, pedestrian numbers. So long as every distance within the system of interest is scaled by the same factor, we retain the meaningful information about relative distances between objects. This is exactly the same principle employed by map makers so that they can fit Texas, for example, onto a turnable page.…
Europe. In 1577 he proved that the orbit of the comet of 1577 did lay beyond…
William Herschel was a musician who searched the heavens studying the stars first as a hobby and later an astronomer. His curiosity grew because he realized he had access to the research for himself. “For much of human history, astronomy has been the people's science…Perhaps this is because the night sky, unlike lab equipment, has always been freely accessible.” The rise of 'citizen astronomers': An era of new discoveries and collaboration. By: Joseph Dussault Staff, Christian Science Monitor, 08827729, 10/24/2016. I imagine that he had read of those before him, but have not yet found evidence.…
Out of the major galaxies, the Andromeda Galaxy is located nearest to our Milky Way. The Andromeda Galaxy is two million light years away from us, but it can be seen with the naked eye because it is very bright. In this galaxy there are over a hundred billion stars. It is known to be the brightest galaxy. The Andromeda Galaxy is a spiral galaxy and is part of the Local Group. It has a large star cluster in its heart and a very large hidden black hole deep in the core. The middle is very bright and around it are spirals with many colors. It has a round disk of stars that rotate around the middle and two main spiral arms made of stars. In the spirals many new blue stars appear.…
Other deep sky objects include the Fireworks Galaxy (NGC 6946), and Cygnus X-1(a strong x-ray source believed to be a black hole candidate).…
Saturday, 19 April 2014, 4:38 PM Finished Saturday, 19 April 2014, 5:30 PM 51 mins 31 secs 100.00 out of a maximum of 100.00…
The Griffith Observatory is a spectacular place, filled with amazing exhibits! It's understandable that some people are frustrated, but with a little patience and some good planning, you can have a wonderful visit! Here's the 10 best tips for your trip: (1) GO ON A WEEKDAY. It's very busy on Sat and Sun, shows sell out, and tons of people make it hard to get a good view of the exhibits. (2) BRING A LUNCH. The cafe is okay, not great, and the prices are kind of silly ($2.50 for a bag of chips). You can eat your own food at the cafe tables, but not outside on the lawn. No picnicking. (3) SEE THE PLANETARIUM SHOW. It is by far the coolest thing at the Observatory. It's sort of like an imax film. Very moving! (4) ASK A GUIDE FOR INFO. As I described above, the guides can tell you what you're looking at, and it will blow your mind!…
never heard of? Thanks to space probes these dreams may become a reality sooner than u think. In the past years there have been many space probes launched and even more discoveries made by them. These probes are helping people to better understand our solar system and everything it. They are also helping to make many new discoveries.…
Q1) Last night you saw the star Betelgeuse exactly on your eastern horizon at 5:47 PM. Two students are discussing their answer to the question "At 5:47 PM tonight where will you see Betelgeuse?"…
A new discovery has been made about planet Jupiter’s stripes and the findings suggest that the stripes are much deeper than scientists had previously thought.…
The first astronomical object I observed was two very bright, small, and circular dots which I later learned were a popular binary star named Algeria. At first, I could barely see the stars but after focusing my eye in the telescope I noticed that one star was a light blue shade and the other star was a vibrant yellow color. Additionally, the yellow star was significantly brighter, more visible, and larger than the tiny, dull blue star. When I typically look up in the sky, I notice how most stars have a similar shape and size with the same white color and vibrancy as they twinkle against the background of the night sky. As a result, I was surprised by the distinct colors of the stars which might have been because I have never observed a star through a telescope before.…
1. The earth’s sun is a star, it generates heat and light through nuclear fusion.…
This moon is within the gap of Saturn’s A ring. Cassini’s spacecraft from NASA flew about fifteen thousand miles to see a strange shape of Saturn’s moon. This is not the first time that this moon was encountered, Mark Showalter discovered Pan on July 16, 1990. They discovered it from passing through the Encke Gap. This moon orbits Saturn ever thirteen hours with a distance one hundred and thirty-four thousand kilometers. The reason why this Moon is being talked about right now is it is shaped like a wonderful eatable ravioli. The idea how the moon got this shape is the flange of ice around the bulge is crush into the moon. This moon has been watched over for many years but Cassini finally found the true shape.…
A brown dwarf is a celestial body that has never quite become a star. A typical brown dwarf has a mass that is 8 percent or less than that of the Sun. The mass of a brown dwarf is too small to generate the internal temperatures capable of igniting the nuclear burning of hydrogen to release energy and light.…