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  #21  
Old 07-05-2012, 05:37 PM
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bmitchell82 (Brendan)
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In general it would have been more annoying than usual, but the "extra bright moon" took a back seat to the 40mm of rain..... which is more evil than the other? .... all evil i says!
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  #22  
Old 07-05-2012, 06:06 PM
apaulo (Paul)
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The super moon tidal effect.

Hi all,

Well visually the Moon's Perigee may not have been so impressive but I went surfing today and the tides were quite extreme (spring tides).
Usually a spring tide in Port Phillip Bay will peak at 1.45 meters but today it reached 1.75 and tomorrow 1.80 meters.
When the moon is full or new, the gravitational pull of the moon and sun are combined and creates a spring tide. Today the tide height was noticeably higher.

Regards Paul.
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  #23  
Old 07-05-2012, 06:38 PM
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stephenb (Stephen)
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I saw it through the light clouds with a beautiful rainbow halo around it. Yes it was a little brighter than normal, but a lot of media hype yet again. I've tried to educate a few people with shades of the Mars email hoax in the back of my mind.
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  #24  
Old 08-05-2012, 06:26 PM
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trek1701 (Mark)
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My understanding on the difference between perigee and apogee in diameter can be as much as 10%



Cheers Mark
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  #25  
Old 08-05-2012, 07:09 PM
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jjjnettie (Jeanette)
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This was the winning photo in a comp for best "Super Moon" photo in SEQ?
Is it genuine or photoshopped?
We've been puzzling over it.

Mods, I'll remove this post if it's inappropriate.
Just that I have my own opinion and want to see what others think.
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  #26  
Old 08-05-2012, 07:30 PM
Scopie (Brad)
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It seemed unusually bright here in Perth. Sat, Sun and Mon night. We had a lot of rain that cleared the junk out of the air betweentimes. Whether the moon was in a small break between clouds or in a fairly large section of clear sky it still seemed a lot brighter than a normal full to me.
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  #27  
Old 08-05-2012, 07:44 PM
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iceman (Mike)
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Quote:
Originally Posted by jjjnettie View Post
This was the winning photo in a comp for best "Super Moon" photo in SEQ?
Is it genuine or photoshopped?
We've been puzzling over it.

Mods, I'll remove this post if it's inappropriate.
Just that I have my own opinion and want to see what others think.
With a telephoto lens from a long way away (or through a telescope) that type of shot is certainly achievable.
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  #28  
Old 08-05-2012, 07:48 PM
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jjjnettie (Jeanette)
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I was just looking at the length of the shadow of the tree. It seems as if the Sun was higher than it should be.
Looking closer, the shadow may be falling into a dip behind the tree.
An optical illusion making the shadow seem shorter than it actually is.
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  #29  
Old 08-05-2012, 07:59 PM
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Yeh good point - for the Moon to be that high above the horizon, it would be in the belt of Venus so the Sun would've set already - meaning no shadow.

Maybe a composite after all.
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  #30  
Old 08-05-2012, 08:03 PM
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Quote:
Originally Posted by jjjnettie View Post
This was the winning photo in a comp for best "Super Moon" photo in SEQ?
Is it genuine or photoshopped?
We've been puzzling over it.
Nettie, given that sunset in Brisbane was at 17:13 and moonrise was at 17:11 I doubt very much this was from May 6, 2012. It might be from a day earlier when the moon is almost full and rises about an hour before sunset, but the colours look more like summer.
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  #31  
Old 08-05-2012, 08:05 PM
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It looks like it may have been taken the previous day. The libration looks ok and there seems to be a bit of a terminator at the bottom, not the top like there was on the evening of the 6th.
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  #32  
Old 08-05-2012, 09:03 PM
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ballaratdragons (Ken)
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The angle of the tree shadow shows that the Sun was fairly high in the sky. At a guess probably 40 degrees or more.

Near sunset the tree shadow would stretch out for about 100 metres.
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  #33  
Old 08-05-2012, 09:39 PM
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Quote:
Originally Posted by jjjnettie View Post
This was the winning photo in a comp for best "Super Moon" photo in SEQ?
Is it genuine or photoshopped?
We've been puzzling over it.

Mods, I'll remove this post if it's inappropriate.
Just that I have my own opinion and want to see what others think.

Photoshopped... look at the shadow of the tree, which should stretch out to the moon at sunset, if the Sun is 180 degrees in the sky, which, with the moon in the sky (well above the horizon) implies that the sun has set, thus no tree shadow should be seen...

Make sense?


<LATE EDIT> Regarding the optical illusion on the shadow... definately possible, as demonstrated by Bad Astronomy and the explanation of the Moon Landing Photos with the different shadow lengths and direction of the astronauts versus the LEM (http://www.badastronomy.com/bad/tv/f....html#parallel)
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  #34  
Old 08-05-2012, 09:46 PM
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ballaratdragons (Ken)
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Another point I have just noticed.

At Full Moon, if the sun was still just up, the tree shadow would point directly in the Moon's direction.
In this image you can clearly see that the Tree shadow is pointing to the right of the Moon.

At the angle the shadow is, it would show a partly shadowed limb on the Moon.

Fake!
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  #35  
Old 08-05-2012, 10:45 PM
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jjjnettie (Jeanette)
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Could the photo have been taken in the Morning as the sun was rising? The moon wouldn't have been fully illuminated at that stage.
I'd love to get hold of the exif info.
I like to think the photographer made an honest mistake with the date.
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  #36  
Old 09-05-2012, 06:24 AM
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cybereye (Mario)
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Some points of interest from the photo:

1. The limbs and leaves of the tree look fairly well illuminated so I'm thinking that the Sun is fairly low otherwise those limbs would be in the leaves' shadow.

2. There seems to be a yellowish tinge to the tree, again suggesting a low Sun.

3. My experience with taking a timed exposure using a tripod at sunset is that if you make it too long it looks like a daytime sky rather than at dusk. This picture exhibits this.

4. Checking against Stellarium, the Moon is in the correct orientation for SEQ, but more closely resembles the 5 May rather than the 6 May in a rotational sense.

5. With the amount of rain we've had in SEQ over the last 6 months I would've expected the grass to be a little greener.

6. I think it's kosher (for the 5 May) but then I also think NSW has a real chance this year!

Cheers,
Mario
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  #37  
Old 09-05-2012, 07:35 AM
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Quote:
Originally Posted by jjjnettie View Post
Could the photo have been taken in the Morning as the sun was rising? The moon wouldn't have been fully illuminated at that stage.
I'd love to get hold of the exif info.
I like to think the photographer made an honest mistake with the date.
Nettie, I can't see how it could have been taken in the morning. The moon sets before sunrise until after full moon. That would mean it could not have been taken earlier than the 7th.
As for exif data, I can fake any date and time I like. Have a hunt for "exiftool".
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