Tuesday, March 20, 2012

Sunspot index graphics since 1750

Sunspot index graphics

The yearly (black, up to 1750) and monthly (red, from 1750 up to now) sunspot numbers.

1 comment:

Unknown said...

State of the art equipment and knowledgeable professional technicians give us the ability to produce the finest quality of printing. The conventional and digital presses used are also state of the art and can accommodate many, if not all of our customers print needs http://www.shlogodesign.com/logo-design-illustrator-or-photoshop