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NAME ____________________________ Lab Night _________________ Virtual Sky II (Rev 10/11) Login to VMware View. Run the program ‘Voyager III’ on the COSAM Astronomy menu. Look in File>Open Settings to find the short program folders like that in Procedure 1. Procedure 1 What a Difference 8000 yrs Makes Select Chicago 10000 AD from the Basics folder. What is the new “North Star”? __________________ What is the name of the process that causes the North Star to change? ______________ Move the display using scroll bars until North is in the center. Sketch the pattern. Show Cassiopeia, Cygnus, Lyra, Ursa Major and Ursa Minor. Label Deneb and Polaris. Use the Time panel to change the year to this year. Draw the pattern now. Show Cassiopeia, Cygnus, Lyra, Ursa Major and Ursa Minor. Label Deneb and Polaris. Procedure 2 Constellation Close-up Set location to Auburn (Longitude between 85 & 86 Latitude between 32 & 33). Set time to 8:30 PM (DST on or off depending on date). Pick one of these constellations depending on when you are doing this: Spring Semester-Canis Major, Summer Semester-Bootes, Fall Semester-Lyra. Use View>Constellations menu to find constellations. Name of brightest star _______________ (Size of star on chart related to brightness but look at magnitude in data panel to be sure. Lowest magnitude is brightest) Name of a double star ____________ (Click on brighter stars. If it is double there will be a components tab on the data panel) Name and number of a Messier object in the constellation. Choose Messier Objects under Display to turn on. If no other name put NGC number. If none visible try Zoom button or look in View>Messier Catalog list. Name __________________ Messier Number _________ Procedure 3 Seasonal Changes Set the date to Mar 21 of this year and time to 8:30 pm (daylight savings off). Set Location to Auburn. Use View>Set Direction to look South. Turn on constellations (Display>Constellations). Draw the view showing at least 5 constellations. Include Leo. Change Date to June. 21. Turn on daylight savings time. Draw the Southern view. Include at least 5 constellations including Leo. Note how much the position of Leo has changed. Procedure 4 Arcturus Nears the Sun Over long periods the appearance of constellations will change. Go to ‘Open Settings’ to open up Settings> Arcturus Nears Sun. Initiate the demo by clicking start. Stop when Arcturus reaches the boundary (purple line) between Bootes and Virgo. How many years did it take according to black and white message at top of chart? ____________ Procedure 5 Analemma from Minneapolis Select Analemma from Minneapolis from Settings folder. If you observe the Sun at the same time and place every day you will find the position of the Sun in the sky changes. Use the time panel to see the path traced out. What is the path traced out called? _____________ What is the shape of this path? _____________ Give the two dates when the Sun is at the position where the path crosses itself. ___________ _________________ Procedure 6 Blue Stars Click on Blue Stars in the Settings folder. These are the hottest stars. The blue stars belong to spectral classes ______ and _______. Where are most of the blue stars? above galaxy, below galaxy, plain of galaxy, scattered all over? _____________________ Name a bright blue star does not follow this pattern. ____________ Procedure 7 Eclipses From the Settings folder run South Carolina Eclipse. How long does the eclipse last (minutes)? Click on start. Use the time it takes for the Moon close-up to go from white to black and back to white. Length of eclipse = ______________ When does the Moon cover the Sun completely? (hour and minute)? ___________ Procedure 8 Crowded Part of the Sky. Open Tail of the Scorpion in the Demo folder. What is the name of the nebula (written in green) to the right of Shaula? ________________ What is the name of the cluster M6 above and to left of Shaula? _____________ (If not visible try zoom(-) button or scroll bars) What is the name of the cluster (in green) above and to left of M6? ____________ Procedure 9 Moon Phases Select Phase of the Moon in Basics Folder. Go through phases from New Moon back to New Moon. Look at the time in the lower left. Use the time panel to start and stop. On which date is the right half lit up (1st quarter)? ________________ On which date is the left half lit up (3rd quarter)? ________________ Procedure 10 Three Places Three Views Select Three Cities from Basics Folder. What you see depends on the time of day, month, and whether above or below equator. Compare New York and Singapore. Where is Vega (compass direction) if you are in Singapore? __________ Where is Vega if you are in New York? __________ Compare New York and Sydney. Use time panel to set both to 8pm. Use the scroll bars to look to the south. The time panel affects the window with blue bar with name of city in dark blue. Click on bar to change. Which very bright star is between South and Southeast from New York? _____________ From Sydney the words Rigel Kentaurus appear on the chart above South. What is the better known name of the star to the left of the R? This star system is the nearest to Earth. ____________________ _____________________________________________________________________________________ Point values: For 1-10 each blank is worth 3 points. In #1 each drawing is worth 6 points (a point will be counted off for each label that is missing). In #3 each drawing is worth 5 points.