Before put one with a five-page math to find out when the next … – Dagbladet.no

(Dagbladet): Friday morning happens the biggest solar eclipse in 60 years in Norway. The watch 4/10/46 eclipse will start at 11.08.41 will eclipse reach its peak and at 12.13.41 it will all be over.

There are times only for Tromso . Otherwise times completely individual from city to city (see chart on facts box) in Norway.

But how do astronomers really – right down to second – where and when the eclipse will happen?

– High precision

– It is because our universe is screwed together as an accurate clock, and we know the movement pattern of the clock says Steinar Thorvaldsen, professor at the Norwegian Arctic university Tromso (UIT) to Dagbladet.

The former leader of astronomy organization in Tromsø rejoices mildly to Friday and tells enthusiastically how astrophysicists in the old days had a greater job when they came to calculate an eclipse.

– This is done by simple a large equation governing the motion of the soil. An equation that fills five pages, he says and explains:

– It is simply a math problem solved. In the old days it was thought it manually; then it was to sit raining down to those great discoveries. It was the week view with work – perhaps a FTEs only to calculate the next eclipse, he said.

Then came the PC.

Here it is best

– Since we have been able to program in all the details, and out comes the position and the given date. You get a graphical representation of when lunar shadow when the earth’s surface, he says to Dagbladet.

– Is work has been sadder now that everything is digitized?

– Science has in any case been something completely different than what it was at that time one considered it manually. It’s still funny – actually it’s even more fun because there were a lot of sweat and tears before. Now you get the numbers and ages directly and can see the main task instead of the equation, he says.

See fact box for a list of exactly when the eclipse happens where you are.

solar eclipse, according to the astrophysical calculations start at 09.46.36 in Oslo. It will reach its peak in the same city at 10.53.20 and be completely over at 02/12/02.

In Bodø will start 09.59.09, reach its peak 11/03/44 and be over 12/09/18.

Do you understand the math?

It is only in Svalbard that eclipse will be total. In the rest of the country is considered the based percentage, that the example will be 93.4 percent full in Trondheim, 95.4 percent full in Tromsø and 88.6 percent full in Oslo.

And then one must perhaps keep the tongue straight in the mouth:

– The percentages are also out of through a large calculation. You have the area of ​​a circle, PI walking radius in another, and so reckon you how many percent wipes out of the moon, says astro enthusiast Thorvaldsen Dagbladet.

– You can see it this way: The moon and the sun is a circle, and then pull the halves areas, circles apart. And then you get a little bit or sum that remains, he explains.

Here it is best

Astronomers say they will be able to see the eclipse best of Svalbard, where a total solar eclipse will occur. In Bodø, Narvik and Skibotndalen Storfjord municipality in Troms gets “second best” term.

In Tromsø will probably also get a nice view towards the sun, while clouds in southern Norway will probably put a damper on the view.

Dagbladet follows eclipse directly through Friday. We go live from Harestua Solar Observatory in Oslo, Tromsø, our studio in Oslo, and will also get live images from Longyearbyen on Svalbard. Follow broadcast direct from at 9:45!