There may be a hectic activity on sun in respect of nucleo synthesis process

[sunofsky]

as many time it is observed in the cool climatic changes appearing on the earth, may be it is due to the big process is going on 'the sun', when and before the sunspot cycle actually start or takes place to start the immediate fall down in the temperature of the sun light which are arriving on the earth may get the lower intensity 'about its temperature'.

or do you think that in the sun earth perihiliion this result actually occures naturally without such a process on the sun !!