BSL
Astronomy
(British Sign Language)
BSL available
at ENS optical
Astronomy Telescope
retailers at Birmingham
Facetime
Derek can help with it.
British Sign Languages
Interest to learn
BSL Basic for fun?
o
More information
for your BSL journey.
BSL available
at Roboscopes
Facetime
Derek can help with it.
The green flash phenomena that sometimes occur transiently around the moment of sunset – when the conditions are right, a distinct green spot is briefly visible above the Sun’s upper limb; the green appearance usually lasts for no more than two seconds.