Meteors, Variables and the Universe

How much do you know about astronomy?IMG_3764

Please prepare for today’s Astronomy Challenge.

Polaris, our North Star, is the object of a three-issue series beginning with the March 2019 issue of Sky & Telescope magazine. This issue is the topic of our Challenge today.

 

If you know your astronomy stuff you might be able to answer most of these questions without reading the magazine. But of course, reading it will probably help.

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

Begin now. Do your best.

  1. At what star do the two stars on the outer edge of the Big dipper point ?

  1. In the March 1994 issue, S&T announced the results of a challenge to rename the Big Bang. What name got the most suggestions?

  1. According to researchers at Kyung Hee University and the U of Liege, why do some stars in M 11 with the same Absolute Magnitude and mass display different colors?

  1. Name the geologist who, in 1960, established that a meteor created Arizona’s Meteor Crater.     Eugene Shoemaker.

  1. What first magnitude star was close to the North Celestial Pole 14,000 years ago?

  1. Cepheid variables apparently have a core consisting of what element?

  1. The star 11 Leonis Minoris 37 Light Years away, is very similar to what well-known star?

  1. Name the second brightest star in the night sky.

  1. What season begins in the Southern hemisphere later this month?

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 Research

https://www.michaeljfox.org/

Click on “Get Involved”

  1. Guilford County Animal Shelter

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

               Look under “Donate to the Animal Shelter.”

  1. Guilford Senior Resources

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

Look under “You Can Help”

  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

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

On Monday, March 4, 2019, our Astronomy Challenge was about the March issue of Sky&Tel.

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:

  1. Polaris………@tiki:   Alpha and Beta UMa line up almost parallel with the 11th hour in Right Ascension.

  2. The Big Bang………..@Coachiepoo:   I liked the suggestion “Bertha D. Universe.”

  3. Effect of rotation…………………No one in the live broadcast got this correct.    The faster the spin rate, the better hydrogen is mixed in the core leading to longer life on the main sequence. Jorge, you were very close on this one. Tiki asked a great question: what makes them rotate at different rates?

  4. Eugene Shoemaker……………………………@tiki   I first learned of Dr. shoemaker when a comet with his name on it slammed into Jupiter.

  5. Vega……………….@Fredzki1:

  1. helium…………………….@tiki

  2. The Sun…………………..@vk5po:   When we look at 11 Leonis Minoris, this is about what our Sun looks like from 37 Light Years.

  3. Canopus………………………..@tiki:   Sirius, Canopus, Arcturus and Alpha Centauri

  4. Autumn………………..@Pircano: At the same time, Spring will begin in the Northern Hemisphere.

Thanks goes out to all participants,

and

Congratulations to everyone who got one right.

If you find a mistake in my post, please let me know.


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