120 Brightest Stars Solved Assignment PDF

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ASTR 120-Fall 2020

NAME ______________________

STELLARIUM Web BASED-ACTIVITY- BRIGHTEST STARS IN THE SKY 

Open Stellarium with this link: https://stellarium-web.org Close the grey column on the left side of the screen by clicking on the hamburger/sandwich. 

Figure 1-Close the left ‘View Settings’ panel Settings’

Figure 2- screen should look like this after closing the ‘View

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Click on the grey square on the lower left corner to set Auto-location or if you are not in Minnesota, then use the map to set the location to St. Cloud, Minnesota.

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Click on the box on the lower right corner

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Set the time to 9 pm cdt (21:00) for Oct. 14, 2020. Pause the time. Make sure FOV (field of view) is 120° deg (located in the top right corner).

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On the last page of this Activity Worksheet is a Star Map. This is a snapshot of the Fall Night Sky a few hours after sunset. Use this Star Map for the following tasks.

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Turn the map and Stellarium so that that are both facing due South. You will see ‘S’ in the tree silohette in Stellarium. On the Star Map, turn the page so that the South is on the bottom. Here is the South you will see the same group of constellations every summer. We call this the ‘center stage’ of the night sky (to the south and overhead.) Here is where stars will be highest and brightest in the night sky.

Identify & Label the brightest objects on this Map-“Fall Night Sky” . 

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What planet is rising in the east? Uranus Label it and circle the above planet on the Fall Night sky map. What two planets are in the west direction? Venus and Mercury Circle and label these two planets on the Fall Night sky map.

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ASTR 120-Fall 2020

NAME ______________________

Can the Moon be seen at this time? No (Y or N) if yes, then label and name 

Now for the brightest stars. The bigger the dot the brighter the star appears in the night sky. Look over the entire night sky to find the FIVE brightest stars. Use Stellarium to click on the star to show the individual star name (if it is not already visable.) 

Find these FIVE brightest stars on the Star Map. Circle each one. Label the name of each star.

Fill in the table below the five brightest stars in tonight’s sky. Write in the following: the star’s name, the magnitude, and the distance, starting with the brightest one first.

1

Name of Star Vega

Magnitude 0.09

2

Arcturus

0.11

Distance 25.04 light years 36.72

3

Altair

0.82

16.73

4

Fomalhaut

1.18

25.13

5

Deneb

1.29

1411.95

Question: is the brightest star, the most distant star? Write your answer here: No  

Explain: Vega only has 25.04 light years in distance. 

Label the constellation stick figures on the Fall Night Sky Map that contain each of the five brightest stars that you listed in the table above. Use the buttons on the bottom nav bar to turn on the stick figure lines, names of the constellation, and the artwork in the star field.

Finally we need to find the brightest “constellations” of the North. Again use Stellarium, then draw the stick figure and label the name of the follow items on your Star Map:    

BIG DIPPER LITTLE DIPPER CASSIOPEIA The North Celestial Pole or Polaris (circle & label this star)

The final part here is to CREATE a map of the bright stars (and possibly planets) that were visible in the night sky the day you were born. Using the time/date selector in Stellarium (located in the lower-right corner), Type in the day, month, year, location and time that you were born. If you do not know the time, then use 8 pm. Fill in this information here: Month of your birth: December Day of your birth: 12 Year: 1994 Location: Lima- Peru

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Time: (use 8 pm if you do not know) 8pm

Zoom out so that all four cardinal directions are visible at the same time. Take a screen shot of this sky. Label the brightest ten objects. Turn the two completed Star Maps, and this activity sheet in to the Dropbox.

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ASTR 120-Fall 2020

NAME ______________________

----End of this Activity. ---------------------------------------------------------------------------------------------------------------------------

Big Dipper

Polaris Cassiopeia Little Dipper

Arcturus Deneb Vega

Altair

Fomalhaut

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ASTR 120-Fall 2020

NAME ______________________

Castor Pollux

Aldebaran Procyon

Betelgeuse

Rigel Sirius

Fomalhaut

Achernar Canopus

Location: Lima- Peru Time: 1994 December 12, 8:00 PM 4

ASTR 120-Fall 2020

NAME ______________________

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