What is Sunshine Recession?
It is known as the deepest period in which sunspots are not virtually visible. Deepest period is related to sun cycle's process called solar minimum
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: What is Sunshine Recession?
### Input: 
### Response: It is known as the deepest period in which sunspots are not virtually visible. Deepest period is related to sun cycle's process called solar minimum