The explosion of a star is an aweso

The explosion of a star is an awesome event. The most violent of these cataclysms, which produce supernovae, probably destroys a star completely. Within our galaxy of roughly 100 billion stars the last supernova was observed in 1604. Much smaller explosions, however, occur quite frequently, giving rise to what astronomers call novae and dwarf novae. On the order of 25 novae occur in our galaxy every year, but only two or three are near enough to be observed. About 100 dwarf novae are known altogether. If the exploding star is in a nearby part of the galaxy, it may create a “new star” that was not previously visible to the naked eye. The last new star of this sort that could be observed clearly from the Northern Hemisphere appeared in 1946. In these smaller explosions the star loses only a minute fraction of its mass and survives to explode again. Astrophysicists are fairly well satisfied that they can account for the explosions of supernovae. The novae and dwarf novae have presented more of a puzzle. From recent investigations that have provided important new information about these two classes of exploding star, the picture that emerges is quite astonishing. It appears that every dwarf nova – and perhaps every nova – is a member of a pair of stars. The two stars are so close together that they revolve around a point that lies barely outside the surface of the larger star. As a result the period of rotation is usually only a few hours, and their velocities range upward to within a two-hundredth of the speed of light.

ผลลัพธ์ (ชิเชวา) 1:

Kuphulika kwa nyenyezi ndi zinthu zochititsa chidwizi. Achiwawa koposa awa cataclysms, imene chakudya supernovae, mwina wawononga nyenyezi kwathunthu. Tingathe Way wa roughly nyenyezi 100 biliyoni otsiriza supernova unkachitika mu 1604. Zambiri ang'onoang'ono mabomba Komabe, zimachitika ndithu kawirikawiri, kuti pakhale zimene asayansi kuitana novae ndi nyenyezi yaing'ono novae. Pa dongosolo la 25 novae zikuchitika masiku athu Way chaka chilichonse, koma awiri kapena atatu ali pafupi mokwanira akuoneni. 100 nyenyezi yaing'ono novae amadziwika palimodzi. Ngati zikuphulika nyenyezi ndi yapafupi mbali ya Way, mwina kulenga "nyenyezi yatsopano" kuti sanali kale kuonekera mpaka apoyera. Otsiriza nyenyezi yatsopano ya mtundu umenewu chimene chikanakhoza kuchitika bwino kuchokera kumpoto kwa dziko lapansi zaoneka 1946. Mu ang'onoang'ono mabomba nyenyezi wotaya mphindi imodzi yokha timene ake misa ndi umapulumuka nditalusa kachiwiri. Astrophysicists ndi amamudziwa okhutitsidwa kuti chifukwa cha mabomba a supernovae. The novae ndi nyenyezi yaing'ono novae ukhale zambiri za chithunzi. Kuyambira posachedwapa kafukufuku amene anapereka zofunika zatsopano za osiyana zikuphulika nyenyezi, chithunzi umene ukuonekera kwambiri zodabwitsa. Zikuoneka kuti aliyense nyenyezi yaing'ono Nova - ndipo mwina aliyense Nova - ndi membala wa peyala ya nyenyezi. Awiri nyenyezi kotero kutseka pamodzi kuti zokhudza mfundo zomwe zagona mwapang'ono kunja padziko lonse nyenyezi. Chifukwa nyengo ya kasinthasintha nthawi zambiri maola ochepa okha, ndi velocities osiyanasiyana monga m'mwamba mkati mwa ziwiri mazana a kuwala kumayendera.