The Deep Sky

Do you know about the approaching Andromeda galaxy?   Are you familiar with stellar evolution?

 

How much do you know about the bright stars in the June night sky?      The location of Jupiter?

Today we have challenging questions inspired by the content of the June 2019 issue of Sky & Telescope magazine.

I created seven questions that could be answered without reading this chapter, but reading it could help.

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

Begin now. Do your best.

ASTRONOMY CHALLENGE

  1. What’s the name of the spacecraft that was last heard from on June 10, 2018?     (page 10)

IMG_3265

  1. (Answer to within a tenth of a billion) Research of M 31 and M33 by teams from ESA’s Gaia mission indicates that the Milky Way Galaxy and the Andromeda Galaxy will have their first “close-encounter” in how many years? (12)

 

  1. What type of star explodes in a Type Ia supernova? (16)

  1. The use of supernovae to calculate the Hubble Constant gives a greater expansion rate and the use of the Cosmic Microwave Background Radiation gives the smaller rate. In kilometers per second per Mega parsec, give a number within the range. (25-6)

  1. Mathew Wedel asks astronomers north of the 34th parallel to look for what galaxy with binoculars?     Hint, this galaxy was recorded by Scottish astronomer James Dunlap while in 1826. (43)

  1. For northern hemisphere observers, Fred Schaaf predicts that in June, the first stars after dusk will be …. (45)

  1. What planet will reach opposition on June 10? (46)

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 Shelter .  Screen 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 Resources

Screen Shot 2018-06-25 at 5.25.17 PM

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

“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.

On Monday, June 3, 2019, our Astronomy Challenge was inspired by the June 2019 issue of Sky & Telescope magazine.

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:

  • What’s the name of the spacecraft that was last heard from on June 10, 2018?     (page 10)

ANSWER: Opportunity

WINNER: @columbia5569     Since landing on the Red Planet in 2004, Opportunity explored around 28 miles of Martian landscape. The rover Curiosity is still communicating from Mars.

  • (Answer to within a tenth of a billion) Research of M 31 and M33 by teams from ESA’s Gaia mission indicates that the Milky Way Galaxy and the Andromeda Galaxy will have their first “close-encounter” in how many years? (12)

ANSWER : 4.5 billion years

WINNER: @speear40 Not 3.9 billion years. Merger will come later.

  • What type of star explodes in a Type Ia supernova? (16)

ANSWER : White Dwarf

WINNER: @richarddennison     Our Sun will probably swell and shrug off the upper layers of its atmosphere,. The remaining core would shrink down to a white Dwarf, emitting energy, but not creating the energy thru fusion

Screen Shot 2018-07-09 at 9.27.57 PM

  • The use of supernovae to calculate the Hubble Constant gives a greater expansion rate and the use of the Cosmic Microwave Background Radiation gives the smaller rate. In kilometers per second per Mega parsec, give a number within the range. (25-6)

ANSWER :   67.4 to 73.5 km/sec/Mpc

WINNER: @DiddleySquat7           Probably around 73.5 km/sec/Mpc

  • Mathew Wedel asks astronomers north of the 34th parallel to look for what galaxy with binoculars?     Hint, this galaxy was recorded by Scottish astronomer James Dunlap while in 1826. (43)

ANSWER : Centaurus A  ngc5128_1068179_Open_000

WINNER: @DiddleySquat7   Also known as NGC 5128, this galaxy is about 15 million light years away and strongly emits in both radio and x-rays.

 

 

 

 

  • For northern hemisphere observers, Fred Schaaf predicts that in June, the first stars after dusk will be …. (45)

ANSWERS :   Arcturus or Vega

WINNER: @DiddleySquat7 for Arcturus spectral type K 1.5 III

WINNER: @speear40 for Vega spectral type A0 Va

  • What planet will reach opposition on June 10? (46)

ANSWER :   Jupiteralgol_3371779_Lum_007

WINNER: @MikeRowe7091483   Despite some overblown PR, you can usually see some of the moons of Jupiter all year long, except when the Sun gets in the way.

 

 

Next challenge: star clusters, pages 310-313 Live on Periscope Monday, June 10, 2019 from 6 to 9 am New York Time Zone.

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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