Based on the clue 'astronomer william herschel wanted to call the sev...', what is the answer?

What is associated with: astronomer margaret burbidge was appointed the first woman director of this institution in eng… What is associated with: astronomer michael brown discovered the object classified as ub313 in 2003 named it for this t… Based on the clue 'astronomer pierre janssen discovered this element ...', what is the answer? Based on the clue 'astronomer sosigenes advised this roman on the dev...', what is the answer? Based on the clue 'astronomers classify these clusters of stars as el...', what is the answer? Based on the clue 'astronomers divide the sky into 88 of these star g...', what is the answer? What is associated with: astronomers gave this beatles inspired name to bpm 37093 a white dwarf star with a 2500 mile w… Based on the clue 'astronomers henry russell ejnar hertzsprung devis...', what is the answer?