The Jehovahs Witnesses used to believe it was in the Pleiades, on the star Alcycione, to be specific:
The face of the deep, of course, would be toward the Pleiades, which are claimed to be the habitation of Jehovah. (Creation; 1927; 2,175,000 ed.; pp. 94)
---
The constellation of the seven stars forming the Pleiades appears to be the crowning center around which the known systems of the planets revolve even as our sun's planets obey the sun and travel in their respective orbits. It has been suggested, and with much weight, that one of the stars of that group is the dwelling-place of Jehovah and the place of the highest heavens;... (Reconciliation; 1928; pp. 14)
---
The constellation of the Pleiades is a small one compared with others which scientific instruments disclose to the wondering eyes of man. But the greatness in size of other stars or planets is small when compared with the Pleiades in importance, because the Pleiades is the place of the eternal throne of God. (Reconciliation; 1928; pp. 14
...so Impse is not the first to apply this Star Trek-approach to God.
I enjoyed his "rapture"-speech, by the way. "A space city created by our lord". Totally nuts.