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Basic Coordinates & Seasons – Student Guide
There are three main sections to this module: terrestrial coordinates, celestial equatorial coordinates, and understanding how the ecliptic is related to seasons on the Earth. Each of these sections has its own simulator(s). The background material necessary to utilize these tools is contained in each section.
Terrestrial Coordinates
Work through the explanatory material on units of longitude and latitude, finding longitude and latitude, and a bit of history (optional). Open the flat map explorer. Familiarize yourself with the cursor and how it prints out the longitude and latitude of the active map location. Note that you can vary the central meridian of the map (i.e. change its
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What does the shape look like? Describe the ecliptic in terms of its average and range of declination values. Approximate Date March 21 June 21 Right Ascension Declination
Seasons and the Ecliptic Work through the introductory material on the page entitled Orbits and Light. Open the Seasons and Ecliptic Simulator. Note that there are three main panels (left, upper right, and lower right) each of which have two different views. Controls run along the bottom of the simulation that affect more than one panel. Click animate and then move through the six views to get an overview this simulator’s capabilities. We will address each of these six views separately. Experiment with the various methods to advance time in the simulator. You may click the start animate/stop animation button, drag the yearly time slider, or drag either the sun or the earth in the left panel to advance time. Note that this animation does not illustrate the rotation of the earth. Because the timescales of rotation and revolution are so different, it isn’t possible to effectively show both simultaneously.
NAAP – Basic Coordinates & Motions 4/8
Left Panel – Orbit View Practice clicking and dragging in this panel to change the perspective. Change the perspective so that you are looking directly down onto the plane of the Earth’s orbit Click labels. Note that you can see how the direct rays of the sun hit at
Vocabulary: direct sunlight, Earth’s axis, equator, indirect sunlight, northern hemisphere, North Pole, season, solstice, southern hemisphere, South Pole, summer solstice, winter solstice
Work through the explanatory material on units of longitude and latitude, finding longitude and latitude, and a bit of history (optional).
Familiarize yourself with the cursor and how it prints out the longitude and latitude of the active map location.
Title: Explore the effect of the lunar phase on events on Earth - temperature and birth rates. Subject: Astronomy Grade level: High school - grades 10-12 Project Type: Descriptive Cost: Low Awards:
The geographic coordinates for the center of the site are latitude 35°5’21” North, and longitude
For instance, around the 17th century, the cycle of the solar for several decades appeared appears to have halted, and few spots were noted, a period referred to as Maunder minimum (Vogt, 2012). This period coincided with the period of cooling in Europe characterized by abnormally cold temperatures. Through the analysis of tree rings, the extended minima became a discovery and seemed to correspond with the global temperatures that usually became lower that the average ones (Vogt, 2012).
The geographic coordinates of my home town are: Latitude: __40_° _30__' _29__" N, Longitude: _80__° _12__' _26__" W The geographic coordinate system is used to show a specific position on the earth’s surface. It uses longitude and latitude, which are like x and y on a graph, to express the value of the coordinates. Longitude and latitude are curved to help show the shape of the earth. Longitude runs north and south between the prime meridian.
The orbital rotation of this planet is half of a Uranus year and as a result of its axis, the north pole will point almost directly towards the sun. When the Uranus year is through, the south pole will take the North pole's place, facing the Sun. A full rotation around the Sun is once every 17.2 hours, and in 84 Earth years equals one full year.
On the graph around the 21st of March is the spring equinox, this means that almost all the cities on the latitudes had around the same amount of sunlight on that day, these latitudes are between 45°S and N. the 2 south and north poles cross around a week after the spring equinox (28th of March). Because the earth revolves around the sun, the amount of sunlight at the poles increases on one end and decreases on the other. Both amounts of sunlight are mirrored on the left and right side of the graph (hemispheres and latitudes). The reason for this is that the tilt of 23.5° makes it so that no cities ever have the same amount of sunlight at the same time, as said in my hypothesis. Another effect of this is that the poles also correspond. The
Precession is a change in the orientation and rotational axis of one singular body. A strong torque and gravitational influence is what makes the earth tilt. There are three different types precession; axial procession, apsidal precession and nodal precession. Axial procession is defined as the movement of the rotational axis of an astronomical body, through-which the axis slowly traces out a cone-like shape. Apsidal precession brings to light that orbits of planets around the Sun do not really follow the same ellipse each time, but actually trace out a flower-petal shape. Nodal procession is the precession of the orbital plane of a satellite around the rotation axis of an astronomical body such as Earth. Nodal precession is due to the non-spherical
Transit’s such as the ones that have been viewed in 1874 and 2012 are very rare nowadays and will only occur every 243 years with a pair of transits that are 8 years apart from each other(1874 & 1882) (2004 & 2012), making it a very special occasion for scientists and observers to discover more astronomy research in the 2012 transit. The reasoning to why it takes a long time for the next transit to occur is because at every 584 days Venus is not directly aligned in between the Earth and the Sun as it is positioned either below or above the blazing star. This event causes the light rays to be undisturbed allowing the star to produce it’s light over the earth, giving the reason why it takes a very long time for the next transit to occur in December 2117. Transits are also known to have a similar concept to Solar Eclipses. They are both aligned in between the earth and the sun (Inferior Conjunction) during their particular events. The moon covers the sun quickly at approximately 7:30 minutes and is appeared to be larger than the circular
Write paragraph answers to the following questions using what you have learned from Visualizing Earth Science and the assigned WileyPlus® GeoDiscoveries®.
This map was created by the Belgian cartographer Abraham Ortelius in the year 1587. It was included in an atlas titled "Theatrum Orbis Terrarum". The image depicts the region of Southeast Asia as well as a small section of America. The rectangular piece has a decorative frame that labels the four cardinal directions in Latin.
Right ascension is a bit more complicated. It is similar to longitude, but instead of being measured in degrees, it is measured in hours, minutes and seconds. It takes 24 hours for the Earth to make one full rotation, so there are 24 sections of right ascension. Right ascension is based off of a point called the vernal equinox. The vernal equinox is zero hours and the hours increase to the east. The vernal equinox is the point where the suns path across the sky (the ecliptic) crosses the celestial
1.4 I can’t wait until I get to step over the equator which is parallel at 0° latitude. I’ve been over the Prime Meridian which is parallel to 0° longitude. My friends and I want to find a buried treasure that is somewhere my friends and I went to the United States which is located 47°N, 71°W. We went over the Tropic of Capricorn which is located 23 1/2° south latitude, we also went over the Arctic Circle which is located 66 1/2° north latitude. So far we haven’t found the treasure next we are going to go to Australia which is located at 38°S, 145°E, next we will all go to