  A total lunar eclipse is plausible to have an influence on the variation of
some environmental physical parameters, specifically on the conditions of the
sky brightness, humidity and temperature. During the eclipse on
14$^{th}$-15$^{th}$ April 2014, these parameters were measured through a
photometer and a weather station. The obtained results allow the comparison,
practically, of the optimal conditions for observational astronomy work in the
Tatacoa desert and therefore to certify it as suitable perfect place to develop
night sky astronomical observations. This investigation determined, to some
extent, the suitability of this place to carry out astronomical work and
research within the optical range. Thus, the changes recorded during the
astronomical phenomenon allowed the classification of the sky based on the
Bortle Scale
