I'm on the Tenerife island and (in the mountains above the clouds - 2300) the day before yesterday, I could clearly see the Milky Way and stars (1 am). So I went to the same place yesterday and the quality was much worse (at midnight).
I'm curious why there was such a difference and what parameters could cause this difference.
- bigger moon?
- different moon position?
- sand from Sahara?
It's El Teide park cerca 2300 meters above the sea.
Is it worth to try again today? What parameters should I look up? It's like 2 hours of driving so I would like to be able to estimate the results in advance.