In the outer space, the object lens of telescope may "drag" (as a moving medium) the ray (path) of star light. Then, aberration occurs (mechanism is different from the one that occurs in the atmosphere). In the outer space, aberration may occur about hollow tube also (photons pass through as rain drops).
In outer space, the object lens of telescope may "drag" the ray of star light. If it's actual, the value of aberration may be larger (because in the glass, the light speed is slow). It looks a revival of Airy's telescope.