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BEGINNERS' STARGAZING QUIZ (QM)

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Stampajane
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby Stampajane » Sun Mar 02, 2014 8:40 am

I'll definitely look at Orion's Sword with a different eye!

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Sun Mar 02, 2014 8:54 am

Or maybe both eyes, Stampajane. :twisted: It's quite easy to locate: for those of you that don't know, Orion is well visible during the Southern Hemisphere's summer, and pretty much all over the world at various times of the year. The sword lies close to, and approximately at right angles, to the famous three-star belt of Orion, and also seems to consist of three stars. The middle "star" is the Orion Nebula; grab some binocs and check it out. :thumbs_up:
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby Timepilot » Tue Mar 04, 2014 1:18 am

onewithnature wrote:Yes, well done TP. :clap: :clap: The only nebula truly visible to the naked eye, it is visible in most localities on Earth, even with a fair degree of light pollution around. TP, I'm not sure if one can recognise it as a nebula through binocs or a small telescope (my bank balance is too low at the moment to afford a good one), but the fuzziness is certainly obvious.


I was down at the farm over the weekend where there is practically no light pollution - hauled my spotter scope out and you can see it is a nebula - it is nothing like the pics but you can tell the difference between that and a star or planet.
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Tue Mar 04, 2014 1:40 am

:thumbs_up: :D Thanks TP.
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TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Thu Mar 06, 2014 12:59 am

Looking at a crescent moon on any particular evening, how can one tell whether the crescent is increasing (waxing) or decreasing (waning)?
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby Phokojwe » Thu Mar 06, 2014 2:35 pm

Excellent question OWN :thumbs_up:

In the Southern Hemisphere.

A waxing moon: Look for the left side of the moon. This should appear round and smooth. The right side will be a crescent shape that looks a little rough as it moves into an oval shape.
A waning moon: Look for the right side, which will be the round and smooth side this time. The left side should appear blurred and rough.

So in other words a waxing moon should be a left crescent and looks like this "C"
and a waning moon should be a right crescent and looks like this "ɔ"

In the Northern Hemisphere it is the opposite.
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Fri Mar 07, 2014 12:50 am

Excellent answer, Phokojwe. :clap: :clap: :clap: Sometimes it is quite difficult to tell within a day of the Full or New moons, though.
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Fri Mar 07, 2014 12:52 am

During the course of a year, what percentage of the Moon's surface is visible from Earth?
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby Phokojwe » Tue Mar 18, 2014 3:46 pm

I would say 59% :think:
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Wed Mar 19, 2014 1:27 am

You would, would you? And ... you'd be CORRECT. Well done Phokojwe. :clap: :clap: Most people think that only 50% of the Moon's surface is visible from Earth. This is true at any given time, but due to the movements of the Moon about the Earth, and the latter about the Sun, 59% may be seen over the course of a calendar year. :D
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TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Wed Mar 19, 2014 1:29 am

Next Q ...

Mars is easily visible at the moment. Where would you look for the famous Red Planet?
(And don't tell me "up in the sky"! :twisted: )
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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby Timepilot » Wed Mar 19, 2014 2:08 am

From where I am I would be looking up and to the left of the setting moon just before dawn, ie. slightly WNW at about 40 degrees above the horizon.
“ Every year elephants were becoming scarcer and wilder south of the Zambezi, so that it had become impossible to make a living by hunting at all. ” FC Selous 1881

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Fri Apr 18, 2014 11:51 pm

Sorry, TP, somehow I forgot about this. :redface: You're entirely correct. :clap: :clap:

When I look at Mars, I always have those images from the rovers in my mind, imagining that this planet is, at the moment, the most accessible of the nearby planets, and the one that NASA is most aiming to visit in the near future. Yet, I somehow feel that they are being overly confident of colonising that planet, and that it not only will take much longer to happen than we expect, but that living there will be a much harder and bleak life than the romantic notions now suggest.
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TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby onewithnature » Sat Apr 19, 2014 12:09 am

Next Q:

In the early morning, a few hours before dawn, there is a very bright "star" in the east; which planet is this?
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TR: PRIMEVAL PLEASURE

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Re: BEGINNERS' STARGAZING QUIZ (QM)

Unread postby Philip1 » Sat Apr 19, 2014 8:43 am

Venus?
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