Sentences with phrase «spotless days»

The SCn - group contains on the average not even half of the total number of spotless day of the SCo - group (less than 400 days vs. 800!).

The baseline is again the month with the 10th spotless day after solar cycle maximum.

The graph above shows the evolution of the total number of spotless days per cycle minimum transition and the yearly international sunspot number (Sn) since 1818.

Will the upcoming solar cycle minimum show as many spotless days, or will solar cycle 25 take off much faster than expected?

We woke up every morning to a delicious breakfast of our choice, and were served food / drinks throughout the rest of the day by the most compassionate house staff, who also made the villa look spotless day after day.

The two graphs above show the monthly number of spotless days during this cycle transit (red) compared to respectively the average number during SC10 to 15 and 24 (SCo; top), and during SC16 to 23 (SCn; bottom).

Florasilva, the woman who came to the villa each day to clean, went above and beyond our expectations, doing laundry and leaving the entire villa spotless each day.

Only one very tiny spot observed for a few hours on Jan. 3rd interrupted a string of spotless days from New Years through Jan. 11th.

Austin, August 16, 2014 — A rare spotless day on the sun on July 17 - 18, 2014 triggered public speculation that an already stunted Cycle 24 was nearly over.

The thick green line in the graph above shows the accumulated (total number of) spotless days so far during the transit from solar cycle 24 to 25.

In view of the ongoing revision of the sunspot number, it is possible there may be some changes in the number of spotless days for SC10 - 11.

The table above shows all periods with 30 or more consecutive spotless days.

This graph shows the number of spotless days per year since 1849.

For example, there were 817 spotless days during the SC23 - 24 transition, and this data point has been set in 2008, the year of the solar cycle minimum.

The last time the sun produced a similar string of spotless days was May of 2010, almost 7 years ago.

The daily house - keeper did such a thorough job, our villa was spotless every day we returned!

We offer a BBQ area that you'll find clean and spotless every day; our pool is heated for a fun relaxing evening.

Indeed, the 400 - year sunspot record and one of its by products, the number of spotless days, show that such a tight sequence of 5 strong cycles over 6 successive cycles (from 17 to 22, except 20), which we can call the «Modern Maximum», is still unique over at least the last four centuries.

In order to have an idea on the number of spotless days, and how these numbers compare to past solar cycles, the SILSO folks have created a «Spotless Days page».

Note there's no obvious correlation between the total number of spotless days and the subsequent solar cycle maximum (r2 = 0.35).

The table above gives for each new solar cycle the date of the first spotless day (after solar maximum...), the month with the 10th spotless day, the month in which the (Meeus smoothed) solar cycle minimum took place, the delay in months between those last 2 timings, and the total number of spotless days that occurred during the cycle transition.

The blue dot to the lower right represents the number of spotless days (176) for the current cycle transition.

For example, during the previous minimum (around 2008), no less than 817 spotless days were recorded, whereas the minimum period leading into solar cycle 23 (around 1996) counted only 309 such blemishless days.

Any spotless days happening more than 12 months before this baseline (month «0») have been accumulated in month» -12».

There's a big difference between the two groups, with the SCn - group peaking early around 2 years with an average of about 10 - 15 spotless days per month, whereas the SCo - group peaks only after 4 years with an average of 15 - 20 spotless days per month.

The number of spotless days can vary significantly from one solar cycle transit to another.

There are some missing data for the period 1818 - 1849, and the data for SC10 - 11 are under revision, but all in all this graph conveys pretty well that - in general - a low amplitude cycle is preceded by a solar cycle transition with a high number of spotless days, and vice versa.

The number of spotless days has been set in the year of the cycle minimum.

It must be noted that the extremes between the cycles in a group can be even more significant: For example, in the SCo - group, the final number of spotless days has varied between 406 and 1028!

The first group (SCo; light blue) has a rather long delay (47 months) and many spotless days (about 800 on the average), whereas the other group (SCn; yellowish) has only 25 months between the month with the 10th spotless day and cycle minimum.

This «Spotless Days page» will provide you with a front - row seat on the current status of the solar cycle minimum and the number of spotless days.

With 52 spotless days, the first 3 months of 2018 have already accumulated more than half the number recorded in 2017 (96).

For example, a total of 200 to 400 spotless days can result in a cycle maximum sunspot number between 150 and 250.

This distinction is made because the first group has a long delay (about 4 years) and many spotless days (almost 800 on the average), whereas the other group has barely 2 years between the month with the 10th spotless day and the cycle minimum, and not even half of the total number of spotless day of the first group (less than 400 days!).

There are 112 years (including 2014 and 2017) with at least 1 spotless day, of which 25 years with 150 or more spotless days.

This page contains graphs and tables on the accumulated number of spotless days, stretches of spotless days, and comparisons to other solar cycles — all supplemented with a word of explanation.