Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: A cikin 1999, masu nazarin sararin samaniya a Jami'ar Jihar San Francisco da Cibiyar Harvard-Smithsonian don Astrophysics sun yanke shawarar cewa tsarin taurari uku ya fi dacewa da bayanan. An sanya sabbin taurari biyu Upsilon Andromedae c da Upsilon Andromedae d.  Tambaya: A wace shekara aka gano cewa tsarin duniyoyi uku ne ya fi dacewa da bayanan?
Shekarar 1999