Soul Cairn Sky in Skyrim

[Sigurd44]

I just returned according the Dawnguard Main Quest Line from the Soul Cairn to Skyrim after freeing Valerica and completing all the side quests there (Jub, Durnehviir, Reaper) and I realized that the Skyrim Sky looks like the Soul Cairn Sky now (big black hole in the center of the sky). This effect doesn't vanish by restarting Skyrim and/or reloading and/or deinstalling/reinstalling skymods like Skyrim HD 2K and Enhanced Nights Skyrim. I wonder if this is a glitch or just the normal. I guess this will be the effect, if you have Auriel's Bow in the end and are able to shut/darken the sun, but is this effect the usual effect while doing this quest stage (Unseen Visions)?

 

EDIT: I waited 24 hours and the effect vanished and the Skyrim Sky returned to normal, but I still wonder if this is a glitch or a normal effect? Argument for a glitch: As a vampire I still get messages about being burnt by the sun, while the sky was Soul Cairn like. As far as I know, the Aurial Bow effect should precisely prevent this effect.

Edited January 3, 2013 by Sigurd44