[DJDD]

Thanks for the replies, everyone.

Originally Posted by renormalised

However, if there was a large and sudden flux of neutrinos from the star, it would indicate that nuclear reactions had begun in the core.

yes, the time delay in getting photos to the surface is there but i imagine it would be quite a sight when a sun begins to really shine.

i imagine that it would be nearly impossible to capture those neutrinos so really it would be limited to the IR/visible mainly.

Originally Posted by Jazza

Besides which a star forming is contained within a disk from which the entire solar system forms. This'll obscure the star (protostar) till well after it starts glowin

yes, about this- i wonder how long it takes before the star is less obsucured, liek in other nebulae we observe.

Alchemy, there is not really any mention about how rapidly the fusion reaction proceeds within a star at its birth. It is those details that always leave me wondering.

thanks, again, for the replies.