Stars in the charts can be clicked and a popup box will appear. However, it should be noted that stereographic projection is not designed to model the Moon illusion and so the distortion should not be regarded as a faithful representation of human perception. This feature might not be as bad, since constellations do appear bigger when they are close to the horizon because of the Moon illusion. This effect is quite noticeable in animations showing the diurnal motion of the sky. For example, a constellation is about twice as big when it is near the horizon than when it is near the zenith. However, the mapping does not preserve area. The mapping is conformal and shapes are preserved over a small area. Stereographic projection is commonly used in sky maps. The star charts are created using the stereographic projection with the nadir as the projection point. 0° means north is at the top, south at the bottom (useful for looking at stars near the southern horizon) 90° means east is at the top, west at the bottom (useful for looking at stars near the western horizon) 180° means south is at the top, north at the bottom 270° means west is at the top, east at the bottom. The azimuth-at-the-top parameter is used to rotate the star chart, which is convenient for laptop and desktop users since the device's screens can't be rotated easily. When the Day/Night button is active, the background color of the star chart is determined by the Sun's position in the chart: light purple when the Sun is above the horizon, gradually changes to black when the Sun is below the horizon and black when the Sun is 18° below the horizon. #Interactive star chart full#The full names of the constellations are listed on this webpage. The default settings can now be changed by filling in a formĬonstellation labels, when active, are shown in the abbreviated form. Sidereal times and star charts at other locations and times can be obtained by clicking the Locations and Times button at the top of the page and filling in the form. The two default locations are at longitude 88.2434°W, latitude 40.1164°N (Champaign, IL, USA) and at longitude 88.2434°W, latitude 30°S. This webpage uses the computer's clock to obtain the current local time and then uses it to calculate the local sidereal times and plot star charts on two locations. Currently, placemarks do not appear in Google Sky Maps.Constellation List CANVAS NOT SUPPORTED IN THIS BROWSER! Note: You can only display one KML file at a time. To see KML-based content, enter the URL of your KML file in the search box and click Search. View KML contentĪfter you've created a map, you can view KML-based content. Note: You can only print the base imagery, not imagery from views like infrared or historical. To print an image, go to the top right and click Print. Paste the address in an email or message field and send it to someone.Copy the web address in the address bar.In the top left, click Link to this page.You can share a link to your current view and post it on a website or give it to others. To adjust the opacity, move the slider (if available). You can see interesting collections of imagery by clicking the thumbnails at the bottom of the page, like Hubble Showcase. You might get a better view by zooming out. Historical: See historical maps of the sky.Microwave: See microwave imagery of the current view.Infrared: See infrared imagery of the current view.Note: You can use more than one view at a time. To see different views in Google Sky Maps, go to the top right and choose a view. #Interactive star chart update#These coordinates update as you move the cursor. Note: In the bottom left, you'll see the coordinates of your cursor. Tip: To center and zoom in on a place, double click the place.
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