Sounds like an april fools joke.. but I put it up as an exercise to consider whilst we wait for Regner's full answer to our claim number 1. From the helio perspective.. of course.. What would really happen to the length of our days and nights over a full year ... I'm trying without success to imagine what would happen if the axis was at 90 degrees.. the earth would still translate , countries on the equator would have permanent...the poles a very long hot summer and cold winter I give up.. Philip..