Video: Peb muaj pes tsawg hom galaxies?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
plaub
Raws li, 4 hom galaxies yog dab tsi?
Qhov kev faib tawm no yog hu ua Hubble Sequence. Nws faib cov galaxies rau hauv peb chav kawm loj nrog ob peb qhov kev hloov pauv. Niaj hnub no, galaxies tau muab faib ua plaub pawg: kauv, thaiv kauv , elliptical, thiab tsis xwm yeem.
vim li cas thiaj muaj ntau hom galaxies? Piav: Lub cov galaxies uas tsis muaj kev cuam tshuam rau ntau txhiab xyoo yog qhov zoo li yuav tsim cov kauv, disk zoo li tus cov galaxies . Me me cov galaxies gravitationally nyiam ib leeg thiab sib koom ua ib qho elliptical duab.
Tsis tas li ntawd, hom galaxy feem ntau yog dab tsi?
Kauv cov galaxies yog cov feem ntau hom nyob hauv lub qab ntuj khwb. Peb Txoj Kev Milky yog ib qho kauv, zoo li yog qhov ze-los ntawm Andromeda Galaxy . Spirals yog loj rotating disks ntawm hnub qub thiab nebulae, nyob ib puag ncig los ntawm lub plhaub ntawm cov teeb meem tsaus. Central kaj cheeb tsam ntawm lub hauv paus ntawm a galaxy hu ua " galactic tawg".
Dab tsi yog 3 yam tseem ceeb ntawm galaxies?
Astronomers pab pawg cov galaxies los ntawm cov duab, thiab txawm tias muaj ntau ntau hom galaxies , feem ntau poob rau hauv ib qho ntawm peb pawg : kauv, elliptical lossis tsis xwm yeem.
Pom zoo:
Muaj pes tsawg hom monomers muaj nyob rau hauv nucleic acids?
tsib Ntxiv mus, muaj pes tsawg hom monomers muaj nyob rau hauv cov hmoov txhuv nplej siab? Nyob ntawd tsuas yog 1. Ib yam li ntawd, qhov sib txawv ntawm nucleic acids yog dab tsi? Ob yam tseem ceeb ntawm nucleic acids yog deoxyribonucleic acid (DNA ) thiab ribonucleic acid (RNA).
Muaj pes tsawg hom teeb muaj?
peb Tib neeg kuj nug tias, lub teeb sib txawv yog dab tsi? Lub Electromagnetic Spectrum sab nraud pom tau muab faib ua ntau qhov chaw uas tseem muaj cov npe tshwj xeeb: xov tooj cua tsis, microwaves, infrared, ultraviolet, x-rays thiab gamma rays.
Muaj pes tsawg pawg ntawm galaxies muaj?
Txhua lub galaxies ci ntsa iab poob rau hauv ib qho ntawm peb chav kawm dav raws li lawv cov duab: Kauv Galaxies (~ 75%) Elliptical Galaxies (20%) Irregular Galaxies (5%)
Muaj pes tsawg hom daim duab peb sab muaj raws li cov ces kaum?
peb Ntawm no, dab tsi yog hom ntawm daim duab peb sab thiab lawv cov khoom? Qhov sum ntawm cov ces kaum hauv ib daim duab peb sab yog 180 °. Ib daim duab peb sab sib npaug muaj peb sab sib npaug thiab kaum. Daim duab peb sab isosceles tuaj yeem kos rau ntau txoj hauv kev.
Muaj pes tsawg hom tshuaj lom neeg muaj pes tsawg leeg?
Hauv chaw ua haujlwm muaj ob hom kev phom sij: kev noj qab haus huv thiab kev phom sij ntawm lub cev