... Sun and Winter Solstice 1996 . ... After steadily sinking in Northern Hemisphere skies, the Sun is now at its lowest declination - marking the first day of Northern Winter (but Southern Summer!) The Earth.. ... FYI, the four ultraviolet images used in this mosaic of the nearby irregular galaxy known.. ... A Sky Full Of Hydrogen . ... Light flooded the local interstellar neighborhood, illuminated this existing gas cloud, excited the existing hydrogen, and hence caused the red emission. ...