Culmination vs Climactic - What's the difference?

As a noun culmination

is (astronomy) the attainment of the highest point of altitude reached by a heavenly body; passage across the meridian; transit.

of, pertaining to, or constituting a climax; reaching a decisive moment or point of greatest tension.

(en noun)

(astronomy) The attainment of the highest point of altitude reached by a heavenly body; passage across the meridian; transit.

Attainment or arrival at the highest pitch of glory, power, etc.

* See also

(en adjective)

Of, pertaining to, or constituting a climax; reaching a decisive moment or point of greatest tension.

* The race ended in a climactic , neck-and-neck scramble for the finish line.

Do not confuse with climatic, which relates to climate.