Figure E2 ICES
Still backward run the clock, until we see
(In inward vision of the heavens past)
A maelstrom of nebulosity
Around the infant Sun. Revolving fast,
The inner circle, subject to the blast
Of newborn light, too hot for ice to form:
Outwards, frosty fragments form the vast
Gas giants: ’twixt them, planetesimals swarm.
The FROST-LINE great from small partitions, cool from warm.