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BEGINNERS' STARGAZING QUIZ (QM)

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onewithnature
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Mon Jul 29, 2013 1:57 am

You're welcome, Philip. :thumbs_up: Would love to see an actual blue moon myself, but then I suppose I'd be close to an erupting volcano, which is anything but cool. :wink:
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Mon Jul 29, 2013 2:00 am

Okay, let's move on from the Moon to moons ... 8)

How many planets' moons can be seen from Earth with the naked eye (assuming average good eyesight and good viewing conditions)?
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby Philip1 » Mon Jul 29, 2013 4:15 pm

A big guess......None?
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Sat Aug 10, 2013 2:03 am

Anyone else?
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby ecojunkie » Sat Aug 10, 2013 5:17 am

I'm going to say just one.....our own?
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby Philip1 » Sat Aug 10, 2013 8:40 am

ecojunkie wrote:I'm going to say just one.....our own?


Make sense to me. :)
"Lose yourself in Nature and find Peace!" (Ralph Waldo Emerson)
UNITE AGAINST POACHING...What we protect,
do not let poachers take it away!

Extinction is forever and survival is up to---every last one of us!

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Wed Aug 21, 2013 1:48 am

Philip, EJ, thanks for answering; however, still waiting for a correct answer. :hmz:
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby Philip1 » Wed Aug 21, 2013 9:05 am

:hmz: Two.....Earths Moon and Callisto of Jupiter. (More detail? :) )
"Lose yourself in Nature and find Peace!" (Ralph Waldo Emerson)
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do not let poachers take it away!

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Thu Aug 22, 2013 2:50 am

Philip. :clap: Now we're getting there. Hint: how many moons of Jupiter are visible in good viewing conditions and with good eyesight at night?
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TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby sarafl » Fri Aug 23, 2013 8:28 pm

I think a professor told me once that you might be able to see 4 moons of Jupiter without aides (if you knew what you were looking at and assuming there wasn't a lot of glare :)

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Sat Aug 24, 2013 1:37 am

Sarafl, a very WARM and HUGE welcome to the forum, and the quizzes. :dance: :dance: :gflower:
And, you're absolutely spot on. :clap: :clap: Four moons of Jupiter - assuming a low amount of light, cloud, and other pollution, 20/20 vision, and all the moons transiting the planet or just to one side - is what the human eye is generally able to see. That, plus our own Moon, makes the total at five moons in the Solar System generally visible to the naked eye. Now, all you all have to do is go out there and spot them. :D
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby sarafl » Sat Aug 24, 2013 2:35 pm

Thanks for the great welcome. I somehow just found the quizzes! Looking forward to participating more in the future! :think:

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Mon Aug 26, 2013 6:46 am

You were meant to find us, Sarafl. :wink: Great to have you participating! :dance: :dance: :dance:
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby Philip1 » Mon Aug 26, 2013 8:01 am

Welcome Sarafl :thumbs_up:

Own, this is what i could find.
However, it is still possible to see at least one moon with the unaided eye. Callisto revolves around Jupiter with an orbital radius of about two million kilometers. If conditions are right, that translates into an apparent distance of 10 arc minutes or so, or about a third the diameter of the Moon as seen from the Earth. If you were to stand next to a building, or some other object with a long straight side, you could position yourself to just block the fierce glare from Jupiter. If you do this correctly, the moon Callisto might just be visible as a faint star just off to the side. This trick actually works; many amateur astronomers report seeing Callisto using just this method.
"Lose yourself in Nature and find Peace!" (Ralph Waldo Emerson)
UNITE AGAINST POACHING...What we protect,
do not let poachers take it away!

Extinction is forever and survival is up to---every last one of us!

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onewithnature
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Tue Aug 27, 2013 6:10 am

Thanks for this, Philip. :thumbs_up: I have a considerations with this statement: Jupiter doesn't exactly have a "fierce glare", and it is indeed possible under good viewing conditions (away from light, cloud, and other pollution) to see the four moons of Jupiter with the naked eye when they are either side of the planet without using building or such to block out Jupiter's light; however, assuming one can find a straight enough surface of a building and one in complete darkness, it may be worth trying the technique to literally see if the viewing is improved.
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)


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