Examples of 'sunspot numbers' in a sentence

sunspot numbers - numerical data representing the activity and frequency of sunspots on the sun's surface

It was a historically inactive period in terms of sunspot numbers.

The sunspot numbers continue to decline.

This remaining signal faithfully represents the sunspot numbers several years in advance.

Sunspot numbers have been observed and recorded over hundreds of years.

They also compared their predictions to average Sunspot numbers.

Sunspot numbers remain very low as Solar Minimum continues.

In fact, scientists map out this cycle based on sunspot numbers.

The ongoing lull in sunspot numbers " is well within historic norms for the solar cycle.

These take into account the latest smoothed sunspot numbers from NOAA / NGDC.

Sunspot numbers rise and fall on an irregular cycle of 11 years.

At the other end, solar max brings high sunspot numbers and frequent solar storms.

Average daily sunspot numbers increased to 7.6, compared to zero over the previous seven days.

These predictions are for " smoothed " International Sunspot Numbers.

A maximum in sunspot numbers occurs every 11 years with the next maximum expected around the year 2001.

Since 1 July 2015 a revised and updated list of the sunspot numbers has been made available.

Meaning of "sunspot numbers"