Let’s talk about Nebulae

Do you know about nebulae?

How much do you know about astronomy? How about the deep sky objects often called “fuzzy”?

 

Today we have challenging questions about nebulae based on the article “The Deep Sky –From Near to Far” by Louise O.V. Edwards in the Observer’s Handbook 2019.

 

I created seven questions that could be answered without reading this chapter.

You have up to ten minutes to complete the challenge today.

Begin now. Do your best.

ASTRONOMY CHALLENGE

  • People native to what continent have ancient oral tradition that considered the Large and Small Magellanic Clouds to be distant campfires?

 

  • Name the European explorer whose famous voyage circumnavigating the globe brought news of these galaxies (LMC and SMC above) to Europe.

 

  • Greek and Arab astronomers saw these fuzzy objects in the night sky and called them “clouds.” What Latin word means “mist or cloud”?

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  • By the year 1899, how many nebula were counted and cataloged?  dozens?  hundreds?  thousands?  millions?

 

  • What process is common to open clusters, reflection nebulae an emission nebulae?

 

  • Where in the Milky Way Galaxy are globular clusters found?

 

  • Associated with the end stages of stellar life, planetary nebulae and supernova remnant are caused by stars of different mass. Which one is for a solar mass star?

 

  • The brightest quasar in visible light is known as 3C 273. In the 3rd edition of the Cambridge Catalogue of Radio Sources, this quasar is what entry number?

 

OK, pencils down. Scroll down for directions for checking your answers.

 

Please read directions below:

Step 1: Please contribute to one of these charities linked below. If you are a winner and contribute, please ask recipient to notify me of the amount so I might match the first $100.

  1. Michael J. Fox Foundation for Parkinson’s Researchfullsizeoutput_13f0

https://www.michaeljfox.org/

Click on “Get Involved”

  1. Guilford County Animal ShelterScreen Shot 2018-09-02 at 10.09.28 AM

       http://www.myguilford.com/animal-services/animal-shelter/

Look under “Donate to the Animal Shelter.”

  1. Guilford Senior ResourcesScreen Shot 2018-06-25 at 5.25.17 PM

http://senior-resources-guilford.org/

 

 

Look under “You Can Help”

 

 

 

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  1. Jo Cline Memorial Endowment

https://www.gtcc.edu/community-engagement/cline-observatory/support-the-observatory-jo-cline.php

 

Step 2: Check your written answers to the answers below. If your answer is correct, give it a check mark.

Step 3: If your answer is wrong, put a small X.

Step 4: If you think my answer is questionable, write yourself a note, do the research and let me know if I’ve erred. Thanks in advance,

 

You are welcome to play with us during the next live broadcast of

“Let’s talk astronomy” this coming Monday beginning at 8 am eastern US time on Periscope.

Periscope is a live video streaming app for Android and iOS available in the App Store.

Our previous Astronomy Challenge was about expired stars.

The questions are given above, the correct answers and the winners are given below.

Congratulations to all winners and thank-you to all participants.

Play the Astronomy Challenge live on Periscope’s “ Let’s talk astronomy” 8 am (Eastern US time) on Mondays.

 

Correct Answers……..Periscope Winners:

  • People native to what continent have ancient oral tradition that considered the Large and Small Magellanic Clouds to be distant campfires?    ANSWER: Australia,…. @simplecomplex These two neighboring galaxies are visible to the unaided eye from the southern hemisphere. The LMC is about 260,000 light years from Earth, and is about a tenth the mass of our galaxy.

 

  • Name the European explorer whose famous voyage circumnavigating the globe brought news of these galaxies (LMC and SMC above) to Europe. ANSWER: Ferdinand Magellan……..@Mank8888 It took Magellan two trips to sail all the way around the Earth. His early voyage was from Europe going east around Africa ending in the Pacific. Her retraced his route to come home. Later Magellan went west around South America to the Pacific and recognized the people and places.

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  • Greek and Arab astronomers saw these fuzzy objects in the night sky and called them “clouds.” What Latin word means “mist or cloud”? ANSWER: nebula………..@ Leonidas_N_M       In 1864 William Huggins used spectra to tell the difference between a true nebula of gas and dust and a star cluster far in the distances.

 

  • By the year 1899, how many nebula were counted and cataloged? ANSWER: thousands……@Jerkface4real  The accompanying table has 42 nebula that are within reach of Earth bound telescopes. Open clusters, emission and reflection nebula, galaxies and more had been catalogued.

 

  • What process is common to open clusters, reflection nebulae an emission nebulae? ANSWER: star birth…….@JPrOxH4rDr All of these objects are connected to the birth and early life of stars.

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  • Where in the Milky Way Galaxy are globular clusters found? ANSWER: halo of the galaxy……..@Leonidas_N_M   Globular clusters are usually made of very old stars.

 

  • Associated with the end stages of stellar life, planetary nebulae and supernova remnant are caused by stars of different mass. Which one is for a solar mass star? ANSWER: planetary nebula……@simplecomplex   There’s an article in the June Sky & Telescope about supernovae.

 

  • The brightest quasar in visible light is known as 3C 273. In the 3rd edition of the Cambridge Catalogue of Radio Sources, this quasar is what entry number? ANSWER: 273rd source listed sources..…….@stevieray

 

Next challenge: the June issue of Sky & Telescope magazine

If you find a mistake, please let me know.

 

Thanks goes out to all participants,

and

Congratulations to everyone who got one right.


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