Xyoo 1922, International Astronomical Union (IAU) tau txhais tag nrho cov hnub qub uas pom nyob rau hauv lub ntuj ceeb tsheej. Tag nrho cov hnub qub pawg tau raug tsim kho, ib daim ntawv teev npe ntawm sab qaum teb thiab yav qab teb hemispheres ntawm lub hnub qub ntuj raug tsim. Nyob rau hauv tag nrho, tam sim no muaj 88 constellations, thiab tsuas yog 47 ntawm lawv yog cov feem ntau ancient, lub hav zoov ntawm uas yog txiav txim los ntawm lub sij hawm ntawm ntau txhiab xyoo. Ib daim ntawv teev npe cais qhia txog 12 lub hnub qub hnub qub uas lub hnub dhau mus rau lub xyoo.
Xyaum txhua lub hnub qub nyob rau yav qab teb Hemisphere, nrog rau cov hnub qub, muaj lawv tus kheej lub npe, lub hauv paus ntawm uas yog mythology ntawm Ancient Greece. Piv txwv li, dab neeg hais txog yuav ua li cas tus vajtswv poj niam ntawm kev yos hav zoov Artemis tua cov hluas Orion thiab, nyob rau hauv ib tug haum ntawm kev hloov siab lees txim, muab tso rau nws nyob rau hauv lub hnub qub. Qhov no yog li cas lub hnub qub Orion tau yug los. Thiab lub constellation Canis Major, nyob ntawm ko taw ntawm Orion, tsis muaj dab tsi ntau tshaj li tus dev yos hav zoov uas ua raws nws tus tswv mus rau saum ntuj. Qhov chaw ntawm lub hnub qub nyob rau hauv txhua lub constellation tsim ib tug kwv yees li conditional contour ntawm mythologic altsiaj txhu, Taurus los yog Scorpio, Virgo los yog Centaur.
Lub Hnub Qub Qab Teb Hnub Qub muaj ntau lub hnub qub paub. Ntawm lawv yog cov thiaj li hu ua pab tau asterisms. Zoo ib yam li Lub Dipper Loj, nyob rau sab qaum teb Hemisphere thiab taw rau North Star, nyob rau yav qab teb muaj lub hnub qub ntawm Southern Cross, uas koj tuaj yeem taug qab txoj kev mus rau tus ncej ntawm sab qab teb. Ob lub hnub qub ntawm Sab Qab Teb Hemisphere yog qhov tseem ceeb heev rau kev taw qhia nautical, thaum tus thawj coj ntawm lub nkoj thaum hmo ntuj yuav tsum tau npaj ib chav kawm. Cov hnub qub muab kev pabcuam tseem ceeb hauv kev taug kev thiab coj cov nkoj hla hiav txwv mus rau txoj kev raug.
hnub qub ci ntsa iab. Lub degree ntawm illumination nyob ntawm ntau yam. Cov hnub qub ntawm Sab Qab Teb Hemisphere suav nrog cov hnub qub ntawm ob qho tib si khaus thiab subdued glow. Lub hnub qub ci tshaj plaws nyob rau hmo ntuj yog Sirius, uas yog ib feem ntawm lub hnub qub Canis Major. Nws lub hnub nyoog yog kwv yees li 235 lab xyoo, thiab Sirius yog ob zaug loj li lub hnub. Lub hnub qub yeej ib txwm ua ib tug mlom nyob rau hauv lub ntuj tsaus ntuj rau tib neeg, lawv pe hawm nws, ua kev txi thiab xav kom muaj kev zoo siab, kev sau qoob loo zoo thiab kev pab cuam hauv ntiaj teb los ntawm Sirius. Ntau lwm lub hnub qub ntawm Sab Qab Teb Hemisphere tau cim nrog lub halo ntawm ib tug vajtswv, cov neeg ntseeg nyob rau hauv lub peev xwm txuj ci tseem ceeb ntawm hmo ntuj luminaries. Thiab qee lub hnub qub kuj tau piav qhia hauv pawg ntseeg phau ntawv.
Zodiac constellation ntawm yav qab teb hemisphere ntawm lub ntuj, lub constellation ntawm Taurus, nyob nruab nrab ntawm Aries thiabGemini. Taurus suav nrog lub hnub qub ci - Aldebaran, tab sis qhov chaw ntawm ob lub hnub qub pawg hauv nws - Pleiades thiab Hyades - tshwj xeeb tshaj yog qhov tseem ceeb. Lub Pleiades yog tsim los ntawm ntau tshaj 500 lub hnub qub, thaum lub Hyades muaj 130. Taurus yog ib tug ntawm cov constellations nplua nuj nyob rau hauv astrophysical txheej txheem thoob plaws hauv nws keeb kwm. Nyob rau hauv lub xyoo pua 11th AD. Lub constellation ntawm Taurus tau shaken los ntawm ib tug supernova tawg, uas tshwm sim nyob rau hauv lub tsim ntawm lub thiaj li hu ua Crab Nebula nrog ib tug pulsar, uas yog ib qhov chaw ntawm haib X-ray hluav taws xob thiab xa xov tooj cua magnetic pulses. Muaj ntau lub hnub qub nyob rau yav qab teb Hemisphere muaj peev xwm ua rau cov hnub qub hloov pauv. Yog li ntawd, cosmic upheavals yog inevitable.
Lwm lub hnub qub nyob rau yav qab teb Hemisphere - Pisces, nyob nruab nrab ntawm Aries thiab Aquarius. Pisces yog qhov tseem ceeb rau qhov tseeb tias vernal equinox dhau los ntawm lawv. Lub constellation suav nrog ob lub hnub qub loj, Northern Pisces, muaj peb lub hnub qub, thiab Crown ntawm xya hnub qub. Lub constellation Pisces kuj muaj ib zaj dab neeg los ntawm Greek mythology thaum ub. Thaum tus dab mythical Typhon tsav cov vajtswv uas ntshai ntawm Olympus mus rau tim lyiv teb chaws, Aphrodite, khiav ntawm kev ntshai, tig mus ua ntses, thiab tom qab ntawd tig mus ua ntses thiab nws tus tub, Eros.
