Yuav ua li cas yog ib tug constellation uas tsim ib tug polygon?
Yuav ua li cas yog ib tug constellation uas tsim ib tug polygon?

Video: Yuav ua li cas yog ib tug constellation uas tsim ib tug polygon?

Video: Yuav ua li cas yog ib tug constellation uas tsim ib tug polygon?
Video: Muaj Yis hauv Xib tes yuav Qhia tau Txoj Hmoo li cas 2024, Kaum ib hlis
Anonim

Cov pawg hnub qub uas daim ntawv ib polygon hu ua Capricornus. Nws yog ib pawg ntawm 12 hnub qub. Nws yog 12 sab tsis xwm yeem , concave polygon. Ib qho nkhaus yog hu ua ib tug polygon, yog hais tias nws yog ib qho yooj yim kaw nkhaus ua los ntawm kab segments.

Tom qab ntawd, dab tsi yog qee qhov piv txwv ntawm Asterisms?

Qhov Loj Dipper, Me Dipper thiab Great Square ntawm Pegasus yog lwm yam piv txwv ntawm asterisms.

Tsis tas li ntawd, dab tsi yog qhov txawv ntawm constellation thiab Asterisms? Cov hnub qub yog cov qauv ntawm cov hnub qub pom rau lub qhov muag tsis pom kev, lossis thaj chaw ntawm qhov chaw pom los ntawm lub ntiaj teb uas muaj kev cuam tshuam los ntawm ciam teb los ntawm International Astronomical Union. Asterisms tseem liab qab-qhov muag lub hnub qub qauv, tab sis lawv tsis tsim hnub qub ntawm lawv tus kheej.

Tsis tas li ntawd, cov hnub qub cuam tshuam li cas rau peb?

Cov hnub qub muaj txiaj ntsig vim lawv tuaj yeem pab tib neeg kom paub txog cov hnub qub saum ntuj. Los ntawm kev nrhiav cov qauv, cov hnub qub thiab qhov chaw tuaj yeem pom tau yooj yim dua. Cov hnub qub tau siv nyob rau hauv ancient sij hawm. Lawv tau siv los pab kom taug qab daim ntawv qhia hnub.

Cov hnub qub tsim li cas?

Cov hnub qub yog tsim ntawm cov hnub qub ci ntsa iab uas tshwm nyob ze ib leeg rau saum ntuj, tab sis nyob deb heev hauv qhov chaw. Vim yog kev sib hloov ntawm lub ntiaj teb thiab nws orbit ncig lub hnub, peb faib cov hnub qub ua ob pawg. Ib txhia hnub qub yeej tsis sawv los tsis teev, thiab lawv hu ua circumpolar.

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