Time Shift (V)

Time Shift (V)

‘Live’ posting style (December the 20th UPDATE: see the comment below, where I put a link to ‘Time distortions estimations’).

… In the event that sunrise starts earlier today, than it did yesterday (07:57 <-> 8:10 -> 8:15), this would mean, we are now in January the 28th (approximately), and thus, the true mid-day value I observed yesterday, would have to be recalculated (which I’ll do if it is sunny as to see it clearly) as 13:23 + 12 = 13:35 p.m. , Spanish hour (= UTC + 1) winter time, and there would be a shift of twenty (|-8| + |12| = 20, whose zero position would have to be determined), clock minutes (+-1 min) with what I see where Polaris should be.
And in that case, the displaced value of the Earth in its elliptical trajectory around the Sun, would be of 21 days to New Year’s Eve, the 31st of December, plus, 27 days, to distorted-today, January the 28th, ~=48 days of 24 hours…

I started making my observations in December last year (2014), and January (2015) this year. I wrote some measurements down in my papers, for daylight’s shadows, and night stars positions, taking good references, such as buildings edges, both day and night, and my window frames, so with a certain degree of error, I can tell where were stars and shadows for some dates and times, when I was making my observations.

I wrote some values for these dates (and also for last year, in December, and the begining of this year, in January):

December the 6th, December the 9th, December the 10th this year, 2015.

Look at this drawing I have just made, where I marked 10 positions and Polaris (lowered on the horizon). The distances here are approximate, but on the real buildings on which I observed the positions and different times at those positions for shadows during daylight, and for the edge of my window’s frame position on them, falling right down from Polaris at night, distances and times are the actual ones: those times at which the vertical shadow of a building falls into the vertical wall of another building nearby, outlining clear, neat lines, which pass over windows’ frames, or decorative margins.

And one of those lines as viewed from my window coincide with the frame of my window when I see Polaris on its edge. This way I know where Polaris should be in daylight hours, although being day, it is not visible.

True North

True North

as a quick and not to be taken as an exact value, I tell you it was at 13:15:10 p.m. (Polaris position in the image, and shadow in daylight), according to my observations, but don’t be so fast in any case, because the air’s pollution, and misty atmosphere, didn’t draw so clear a line, as other days, so, please, WAIT until I deploy the explanation, and go on checking yourselves.

I won’t give you more values for my measurements until tomorrow morning (if I can see the stars tonight), and afternoon (if it is sunny and I can measure again to see how it is evolving).

Acerca de María Cristina Alonso Cuervo

I am a teacher of English who started to write this blog in May 2014. In the column on the right I included some useful links and widgets Italian is another section of my blog which I called 'Cornice Italiana'. There are various tags and categories you can pick from. I also paint, compose, and play music, I always liked science, nature, arts, language... and other subjects which you can come across while reading my posts. Best regards.
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