A rayuwar yau da kullun, ma'aunin nesa daga aya zuwa wancan bai haifar da matsaloli ba. Wannan yana amfani da raka'a daban daban da mu. Ji, misali, adadi na 100 m, kowannensu na iya tunanin nawa ne. Don gano nisa tsakanin abubuwa a cikin ilimin taurari, masana kimiyya sun ƙunshi dukkan abubuwa masu rikitarwa.
Jikin samaniya a cikin tsarin hasken rana
Da wuya a ba da labari game da kilomita tare da kilomita. Don faɗi cewa nesa daga ƙasa ga wata shine 384.4 dubu 384.4 zai yiwu, har yanzu yana yiwuwa, amma tare da wasu abubuwa lambobin sun fi tsayi. Don auna nesa a cikin tsarin hasken rana, ana amfani da wata ƙungiya ta musamman - AU (A. E.).
Ya dace da girman manyan manyan Semi-gundura na duniya Orbit da kuma a lokaci guda nesa da rana. A cikin 2012, ƙungiyar sararin samaniya ta yanke shawarar sanin ainihin lambar don A.e. - 149 597 870 700 mita. Dacewa da amfani da naúrar shine lokacin da aunawa nesa zuwa abubuwa, zaku iya kwatanta su da agogon duniya daga Rana. Misali, nisa daga ƙasa zuwa uranium kusan 20 a. e.
Don gano nisan don in gwada sosai a hankali abubuwa (da yawa a. E.), ana amfani da hanyar radis. Yana da babban daidaito. Wajibi ne a san sigogi da yawa: saurin haske, motsi na jiki da ƙasa. Telescope rediyo yana aika sigina wanda aka nuna daga jikin jikin kuma ya dawo ƙasa. Lokacin wucewa da katako a wurin kuma baya ba ku damar lissafin nisan nesa zuwa abu.
Idan jikin samain sama shine mafi nisa daga ƙasa, to, nisan da aka auna ta hanyar hanyar a kwance parallax. Parassals wani canji ne a cikin yanayin da za'a iya ganin dangi zuwa matakin nesa, gwargwadon inda mai kallo yake. Da yawa daga cikin parallaxes ana ware, waɗanda aka yi amfani da su a cikin ilmin taurari.
A kwance hanyar parallax shine kamar haka. Kasancewa a wani bangare guda ɗaya, matsayin abin da ke sararin sama yana da matuƙar taurari masu nisa. Sannan matsa zuwa wani batun duniya da kuma lura da matsayin sararin samaniya.
Nisa tsakanin abubuwan lura an san shi da kusurwa tsakanin saman da abin. A sakamakon haka, wani sharaɗi daidai yadda aka samu alwatika mai ɗaci. Kamar yadda tushe, sai an yi amfani da diamita na duniya.
Aunawa da nesa zuwa abubuwa masu nisa
Domin mafi yawan abubuwa masu nisa, har ma da amfani da sararin samaniya ba shi da amfani. Saboda haka, masanan taurari sun bayyana nesa cikin shekaru 1 mai sauƙi shine 9.46 x 1015 m), kuma mafi sau da yawa - haske shekaru 3,2616 ne).
Idan kana buƙatar gano ainihin nisan zuwa taurari, kuma ana ɗauka cewa ba ya wuce shekaru masu haske sau da yawa, yi amfani da hanyar na shekara ɗaya a shekara ɗaya. The wurin jikin mutum a cikin tsarin hasken rana ana auna shi dangi ne da taurari nesa. Ma'anar nisan zuwa waɗannan taurari suna faruwa ne idan aka kwatanta su da sauran taurarin.
Hanyar ma'aunin nesa ta kasance iri ɗaya - Wajibi ne don motsawa daga wani lokaci na fuskar duniya zuwa wani don gano motsin tauraro. Koyaya, girman ƙasar ba karamin dangi bane ga taurari.
Don dacewa da ƙarin cikakken bayani, mai lura ya kasance a cikin wannan batun, amma an yi ma'aunin a tazara rabin shekara guda. Don watanni 6, ƙasa, juyawa da rana, za ta canza zuwa ga kishiyar al'adun, kuma mai binciken zai sami matsakaicin nisa tsakanin maki biyu. Karamin zai zama naaru, da karin parekops zuwa tauraron.
Zai yuwu a auna nesa ga jikin a bayan hanyar Milky Way shine kawai. Masana kimiyya suna mai da hankali ne ga hasken tauraron-Cefede, barkewar supernovae kuma kwatanta su da wasu abubuwan da aka riga aka sani. Kuma nesa zuwa gaanan taurari masu nisa, inda taurari ba a bayyane ba, an ƙaddara ta hanyar lura da gudun hijira a cikin mashin su.
Gaskiya mai ban sha'awa: tauraron polar shine tekun na yau da kullun, wanda aka san don canzawa - yana iya canza haske. Koyaya, kwanan nan, wasan polar an rarrabe tauraron polar ta hanyar haske. Nesa da shi daga ƙasa - 137 parses.
A wajen zurfin nesa zuwa taurari da taurari suna da takamaiman jerin. Don kusanci da abubuwa masu kyau, hanyoyin radar kuma ana amfani da parallax. Gama nesa - kimanta haske da canji a cikin bakan da Tel.
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