Indeed there is no such rule at WP:STUB, but do note the following sentence: if [the article's] subject has no inherent notability, it may be deleted or be merged into another relevant article. I am of the opinion these articles have no inherent notability, as per WP:NOTE. No, it is not the astronomy project's say on what is notable, it is WP:NOTE's say on what is notable.  However, since we don't have an astronomy specific notability guideline (similar to the WP:BK or WP:NF), the astronomy project would do well to start one. Also see WP:GNG, WP:STREETS, and WP:NOTDICDEF to get a better understanding of where I'm coming from.

Your advice is regarding the course of action to take for these articles is sound, and I would also like to see editing occur in such a direction. Regrettably, I must confess that I am both too busy and too lazy to take charge. Perhaps you could take the initiative or bring the issue to light to the astronomy project, as I am unsure of where to go from here.

Finally, don't make laugh. Do your worst with my IP. No, seriously, do it. I'm waiting. 70.112.5.239  

(Though being taken more seriously is actually true, I will make do without)