Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Muna 1880, Johann Palisa, mutungamiriri weAustria Naval Observatory (538), akapiwa nzvimbo somubetseri paVienna Observatory yakanga ichangobva kupedzwa. Kunyange zvazvo basa racho raizoderedza chinzvimbo chaJohann, rakamupa mukana wokushandisa refractor itsva yemamirimita 690 - iyo yaiva teresikopu yakakura kupfuura dzose munyika panguva iyoyo. Panguva ino Johann akanga atowana ma asteroid 27, uye aizoshandisa zviridzwa zveVienna zvemamirimita 27 (690 mm) nemamirimita 12 (300 mm) kuti awane mamwe ma asteroid 94 asati aenda pamudyandigere. Pakati pezvaakawana paiva neasteroid 253 Mathilde, yakawanikwa musi waNovember 12, 1885. Zvinhu zvokutanga zvomugwagwa wacho zvakabva zvaverengwa naV. A. Lebeuf, mumwewo muongorori wezvomuchadenga wokuAustria aishanda paParis Observatory. Zita renyeredzi duku rakataurwa naLebeuf, mushure meMathilde, mudzimai waMoritz Loewy<unk>uyo akanga ari mutevedzeri wemutungamiriri wepanzvimbo yekucherechedza muParis. Muna 1995, kuongororwa kwepasi-kwakaitwa kwakaratidza kuti Mathilde inonzi C-type asteroid. Yakawanwawo kuva nenguva yakareba zvisingawanzoitiki yokutenderera kwamaawa 418. Pana June 27, 1997, nzvimbo yomuchadenga yeNEAR Shoemaker yakapfuura mukati memakiromita 1,212 aMathilde ichifamba nokukurumidza kwe9,93 km/s. Kuswedera pedyo kwakadaro kwakabvumira muchina womuchadenga kutora mifananidzo inopfuura 500 yepasi, uye kwakapa mashoko okuona zvakarurama kukura kweasteroid uye uremu (hunobva pakukanganiswa kwechikepe chomuchadenga). Zvisinei, hemisphere imwe chete yaMathilde ndiyo yakaratidzwa mufananidzo panguva yokufamba-famba. Iyi yakanga ichingova asteroid yechitatu kutorwa mifananidzo iri pedyo, ichitevera 951 Gaspra uye 243 Ida.  Mubvunzo: Refractor yacho yaiva yakareba masendimita mangani?
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