20th March 2015 - 90% Eclipse.

20th March 2015 - 90% Eclipse.

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jmorgan

36,010 posts

285 months

Friday 20th March 2015
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dr_gn said:
The thing I noticed (and also with the total eclipse viewed from Torquay back in 1999), was the air temerature seemed to drop significantly, even though the light level reduction obviously wasn't stunning this time. this morning I could see my breath around the 90% period. Apart from the extent of the darkness, the other difference was that the birds didn't go to roost like they did in Torquay - I guess that was due to light levels.
Aye, went noticeably colder at the scope and a weird sort of light in general. I did notice the birds kicking off though, not as much as 99 but still there.

Mr Whippy

29,055 posts

242 months

Friday 20th March 2015
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And another one, mainly with the blur to the sides/bottom in the clouds.

It just looks a bit weird.



Interestingly, the sun here isn't over-exposed, but the bit of cloud below is (these are JPG off the camera, not raw).

Dave

Eric Mc

122,048 posts

266 months

Friday 20th March 2015
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jmorgan said:
dr_gn said:
The thing I noticed (and also with the total eclipse viewed from Torquay back in 1999), was the air temerature seemed to drop significantly, even though the light level reduction obviously wasn't stunning this time. this morning I could see my breath around the 90% period. Apart from the extent of the darkness, the other difference was that the birds didn't go to roost like they did in Torquay - I guess that was due to light levels.
Aye, went noticeably colder at the scope and a weird sort of light in general. I did notice the birds kicking off though, not as much as 99 but still there.
I presume also that your own eyes will adjust to compensate for the falling light levels so it doesn't seem that much darker.

jmorgan

36,010 posts

285 months

Friday 20th March 2015
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Eric Mc said:
jmorgan said:
dr_gn said:
The thing I noticed (and also with the total eclipse viewed from Torquay back in 1999), was the air temerature seemed to drop significantly, even though the light level reduction obviously wasn't stunning this time. this morning I could see my breath around the 90% period. Apart from the extent of the darkness, the other difference was that the birds didn't go to roost like they did in Torquay - I guess that was due to light levels.
Aye, went noticeably colder at the scope and a weird sort of light in general. I did notice the birds kicking off though, not as much as 99 but still there.
I presume also that your own eyes will adjust to compensate for the falling light levels so it doesn't seem that much darker.
It was odd, more orange or light red.

Smiley198700

158 posts

117 months

Friday 20th March 2015
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Noticeable temperature drop wobble

Was cloudy during but you could still see it - lovely blue sky now though smile

SpudLink

5,839 posts

193 months

Friday 20th March 2015
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djdest said:
They could of shown ground coverage on Faroe on split screen or even as a recording after.
I would of loved to of seen split screen showing the view of the sun they had and how it was affecting light on the ground
I was thinking the same thing as I watched it. I got the sense they were more interested in showing live pictures of people's reactions, rather than replaying video of the 'passing shadow'.

Eric Mc

122,048 posts

266 months

Friday 20th March 2015
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For totality the images are almost entirely from the aircraft - which was the 100% correct thing to do.

djdest

6,542 posts

179 months

Friday 20th March 2015
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Of course I understand that, but also a huge part of an eclipse is obviously the fact and phenomenon that it gets dark!
They didn't show a single second of footage of that

Eric Mc

122,048 posts

266 months

Friday 20th March 2015
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I was so fascinated by the images of the sun's corona and prominences, Baily's Beads etc that I was not too worried about looking at The Faroes in darkness.

mcdjl

5,448 posts

196 months

Friday 20th March 2015
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An effort of mine from earlier

Bill

52,799 posts

256 months

Friday 20th March 2015
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frown It went from overcast to overcast and gloomy and back again here.

MiniMan64

16,936 posts

191 months

Friday 20th March 2015
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Eric Mc said:
I was so fascinated by the images of the sun's corona and prominences, Baily's Beads etc that I was not too worried about looking at The Faroes in darkness.
Agreed.

If it was clear skies in the Faroes I would imagine we would have seen more from there but to be honest looked like a bit of a damp squib for all those thousands that travelled there. Even if they'd showed it getting darker I doubt you would have noticed it much on TV, the effect of the camera's seemed to really wash out any sense of darkness that I could see.

Was much happier watching it live outside even only as a partial and I agree with some others about the drop in air temperature, very very noticeable. The darkness is a tricky thing because you're eyes adjust pretty quickly and fool you into thinking it lighter than it is.

spikeyhead

17,335 posts

198 months

Friday 20th March 2015
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Smiley198700 said:


Noticeable temperature drop wobble

Was cloudy during but you could still see it - lovely blue sky now though smile
Why does the earth coll so much more quickly during the eclipse than at night? I'd have thought that the rate of cooling would be the same.

MiniMan64

16,936 posts

191 months

Friday 20th March 2015
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Eric Mc

122,048 posts

266 months

Friday 20th March 2015
quotequote all
spikeyhead said:
Smiley198700 said:


Noticeable temperature drop wobble

Was cloudy during but you could still see it - lovely blue sky now though smile
Why does the earth coll so much more quickly during the eclipse than at night? I'd have thought that the rate of cooling would be the same.
No, because the sun takes a while to get closer to the horizon before it disappears. Therefore there is a gradual cooling over a couple of hours as the sunlight comes through thicker and thicker layers of atmosphere.

With an eclipse - especially one well after dawn or well before sunset, the sun will be pumping out close to its maximum heat with minimum atmospheric attenuation when suddenly, within a few minutes, the heat source is blocked off. This will result in a fairly quick drop in air temperature.

dr_gn

16,166 posts

185 months

Friday 20th March 2015
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MiniMan64 said:
She makes a good point at the begining: Back in '99 my pal and I were debating whether to make the last minute 500+ mile round day trip to Devon, becasue we assumed that a 90-odd% eclipse would mean 90-odd% darkness. Obvioulsy we wre glad we made the trip when we saw the photos of what it was like - just a dull day (like this morning) rather than almost total darkness.

Mr Whippy

29,055 posts

242 months

Friday 20th March 2015
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dr_gn said:
She makes a good point at the begining: Back in '99 my pal and I were debating whether to make the last minute 500+ mile round day trip to Devon, becasue we assumed that a 90-odd% eclipse would mean 90-odd% darkness. Obvioulsy we wre glad we made the trip when we saw the photos of what it was like - just a dull day (like this morning) rather than almost total darkness.
It is 90% odd darkness, but our eyes are good at seeing in the dark, so it doesn't seem 90% darker.

It's still pretty stunning for it to dip so low. If it happened quicker it'd probably be more noticeable but it was going at sunset kinda pace so didn't feel all that non-normal.

Dave

jmorgan

36,010 posts

285 months

Friday 20th March 2015
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Mooching through my images. A sun spot about to go....

MiniMan64

16,936 posts

191 months

Bill

52,799 posts

256 months

Friday 20th March 2015
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