Qhov kev ncua deb ntawm lub telescope tuaj yeem "pom" lossis saib yog nyob ntawm ntau yam, suav nrog lub koob yees duab lub aperture (inch ntawm nws lub lens thawj lossis daim iav), qhov zoo ntawm nws cov optics, thiab kev soj ntsuam. Nov yog qee cov ntsiab lus tseem ceeb los xav txog:
Kev txwv ntawm Lub Ntiaj Teb Huab Cua: Lub ntiaj teb huab cua tuaj yeem cuam tshuam rau kev ua haujlwm ntawm telescopes. Atmospheric turbulence, hu ua "pom," tuaj yeem ua rau cov duab distortion thiab txwv qhov tseeb thiab nthuav dav ntawm cov khoom nyob deb. Cov nyhuv no yuav tshwm sim ntau dua thaum pom los ntawm cov chaw uas muaj huab cua tsis zoo lossis ze ntawm lub qab ntug.
Angular Resolution: Lub angular daws teeb meem ntawm lub tsom iav raj txiav txim siab nws lub peev xwm los paub qhov txawv cov ntsiab lus zoo lossis cais cov khoom sib ze. Nws yog nyob ntawm txoj kab uas hla ntawm lub telescope lub aperture. Qhov loj dua qhov aperture, qhov siab dua qhov kev daws teeb meem angular, tso cai rau kev soj ntsuam ntxaws ntxiv ntawm cov khoom nyob deb.
Kev soj ntsuam cov khoom hauv qhov chaw: Telescopes tuaj yeem pom ntau yam khoom hauv lub ntiaj teb, suav nrog cov ntiaj chaw, lub hli, hnub qub, galaxies, nebulae, thiab ntau dua. Qhov kev ncua deb ntawm lub telescope tuaj yeem "pom" nyob ntawm qhov ci, qhov loj, thiab qhov sib txawv ntawm cov khoom pom. Fainter thiab cov khoom nyob deb dua yuav tsum muaj lub apertures loj dua los sib sau ua ke lub teeb txaus rau kev tshawb pom thiab kev soj ntsuam kom ntxaws.
Kev soj ntsuam hauv qhov tob tob: Cov tsom iav tsom iav nrog cov apertures loj dua yog qhov zoo dua rau kev soj ntsuam qhov chaw sib sib zog nqus, vim lawv tuaj yeem sib sau ntau lub teeb thiab pom cov khoom fater. Cov kws tshaj lij kev soj ntsuam nrog lub telescopes loj, xws li Hubble Space Telescope los yog hauv av-based telescopes nrog ob peb meters nyob rau hauv txoj kab uas hla, muaj peev xwm soj ntsuam cov khoom billions ntawm lub teeb-xyoos deb, suav nrog nyob deb galaxies thiab quasars.
Magnification vs. Image Quality: Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev nthuav dav ntxiv tsis tas txhais tau tias cov duab zoo dua lossis muaj peev xwm pom tau ntev dua. Kev ua kom pom tseeb dua tuaj yeem ua rau cov duab dimmer lossis fuzzier, tshwj xeeb tshaj yog nyob rau hauv cov huab cua tsis zoo lossis thaum saib cov khoom faint. Qhov kev xaiv ntawm magnification nyob ntawm qhov khoom tau pom thiab lub koob yees duab lub aperture.
Hauv cov ntsiab lus, qhov kev ncua deb ntawm lub telescope tuaj yeem "pom" nyob ntawm nws qhov aperture, optical zoo, atmospheric tej yam kev mob, thiab cov yam ntxwv ntawm cov khoom pom. Loj aperture telescopes nrog zoo optics muaj peev xwm los soj ntsuam ntau nyob deb thiab fater cov khoom nrog nthuav dav dua.