True dusk (−14.38˚ ± 0.91˚)

Beginning of the pseudo dusk (−14.86˚ ± 0.91˚)

End of the pseudo dusk (−17.8˚ ± 0.7˚)

True dawn (−14.19˚ ± 0.52˚)

End of the pseudo dawn

(−14.76˚ ± 0.41˚)

Beginning of the pseudo dawn (−18.62˚ ± 0.82˚)