Geminid meteor shawa.
Ma Geminids amayamba chifukwa cha zinyalala zochokera ku chinthu chakumwamba chomwe chimadziwika kuti 3200 Phathon, amene chiyambi chake ndi nkhani ya mkangano wina. Akatswiri a zakuthambo ena amawona kuti ndi comet yomwe yatha, kutengera zomwe zikuwonetsa zinthu zazing'ono zomwe zimachoka pamwamba pa Phaethon. Ena amatsutsa kuti iyenera kukhala asteroid chifukwa cha kanjira kake ndi kufanana kwake ndi mlengalenga waukulu wa asteroid Pallas.
Kaya Phaethon ndi yotani, zowona zikuwonetsa kuti ma Geminids ndi owuma kwambiri kuposa meteor a mamvula ena, zomwe zimawapangitsa kuti azitsika mpaka 29 mailosi pamwamba pa Dziko lapansi asanawotchedwe. Miyendo ya mavumbi ena, monga ma Perseids, imapsa kwambiri.
Ma Geminids amatha kuwonedwa ndi ambiri padziko lapansi. Komabe, anthu a ku Northern Hemisphere amaiona bwino kwambiri. Pamene mukulowa ku Southern Hemisphere ndikupita ku South Pole, kutalika kwa Geminid kuwala - malo akumwamba kumwamba kumene Geminid meteors amawoneka kuti amachokera - amatsika ndi kutsika pamwamba pa chizimezime. Motero, oonera m’malo amenewa amaona ma Geminidi ochepa poyerekezera ndi anzawo akumpoto.
Nyenyezi zonse zimaoneka kuti zimachokera kumalo amodzi kumwamba, komwe kumatchedwa kuti kuwala. Ma Geminids akuwoneka kuti akuwoneka kuchokera kumalo ena a gulu la nyenyezi la Gemini, motero amatchedwa "Geminids." Zithunzizi zikuwonetsa kuwala kwa 388 meteor ndi liwiro la 35 km / s kuwonedwa ndi NASA Fireball Network mu Disembala 2020. Zowunikira zonse zili ku Gemini, zomwe zikutanthauza kuti ndi a shawa ya Geminid. Credit: NASA
Kupatula nyengo, gawo la Mwezi ndilofunika kwambiri pozindikira ngati meteor shower idzakhala ndi mitengo yabwino pachaka chilichonse. Zili choncho chifukwa kuwala kwa mwezi “kumachotsa” nyenyezi zosaoneka bwino kwambiri, zomwe zimachititsa kuti anthu amene amaona mlengalenga aziona zowala zochepa. Chaka chino, Mwezi udzakhala pafupifupi 80% wodzaza pa nsonga ya Geminids, yomwe si yabwino kwa ma meteor shower omwe timawaganizira kwambiri. Komabe, Mwezi wowalawo ukuyembekezeka kukhala cha m'ma 2 koloko m'mawa kulikonse komwe muli, ndikusiya maola angapo kuti muone meteor mpaka madzulo.
"Wolemera mumoto wobiriwira wobiriwira, a Geminids ndiye shawa yokhayo yomwe ndingayiwone usiku wa December," adatero Bill Cooke, yemwe amatsogolera. NASAMeteoroid Environment Office, yomwe ili ku Marshall Space Flight Center ku Huntsville, Alabama.
NASA idzaulutsa mtsinje wamvula wamvula pa Disembala 13-14 kudzera pa kamera ya meteor ku NASA's Marshall Space Flight Center ku Huntsville, Alabama, (ngati nyengo yathu ikugwirizana!), kuyambira 8pm CST pa NASA Meteor Watch Facebook tsamba.
Mavidiyo a Meteor ojambulidwa ndi Onse Sky Fireball Network amapezekanso m'mawa uliwonse kuti adziwe Geminids m'mavidiyowa - ingoyang'anani zochitika zolembedwa "GEM."
Dziwani zambiri za Geminids pansipa:
N'chifukwa chiyani amatchedwa Geminids?
Nyenyezi zonse zomwe zimagwirizanitsidwa ndi shawa zimakhala ndi njira zofanana, ndipo zonse zimawoneka kuti zimachokera kumalo amodzi akumwamba, omwe amatchedwa kuwala. Ma Geminids akuwoneka kuti akuwoneka kuchokera kumalo ena a gulu la nyenyezi la Gemini, motero amatchedwa "Geminids."
Kodi Geminids amathamanga bwanji?
Geminids amayenda 78,000 mph (35 km / s). Imeneyi imathamanga kuŵirikiza nthaŵi 1000 kuposa akalulu, ili mofulumira kuŵirikiza nthaŵi 250 kuposa galimoto yothamanga kwambiri padziko lonse, ndipo ili mofulumira kuŵirikiza 40 kuposa chipolopolo chothamanga kwambiri!
Momwe mungayang'anire ma Geminids?
Ngati kulibe mitambo, chokani ndi magetsi owala, mugone chagada, ndikuyang'ana mmwamba. Kumbukirani kulola maso anu kuti azolowere mdima - mudzawona meteor ambiri mwanjira imeneyo. Kumbukirani, kusinthaku kungatenge pafupifupi mphindi 30. Osayang'ana pa foni yanu yam'manja, chifukwa idzawononga masomphenya anu ausiku!
Ma meteor amatha kuwoneka padziko lonse lapansi. Pewani kuwonera kuwala chifukwa mitembo yomwe ili pafupi nayo ili ndi tinjira tating'ono kwambiri ndipo timaphonya mosavuta. Mukawona meteor, yesani kutsata chakumbuyo. Mukamaliza mu gulu la nyenyezi la Gemini, pali mwayi wabwino kuti mwawona Geminid.
Kuyang'ana mumzinda wokhala ndi nyali zambiri kumapangitsa kuti zikhale zovuta kuwona ma Geminids. Mutha kuwona ochepa okha usiku ngati zili choncho.
Ndi nthawi iti yabwino yowonera Geminids?
Usiku wabwino kwambiri wowonera shawa ndi Disembala 13/14. Oyang'anira mlengalenga ku Northern Hemisphere amatha kutuluka madzulo kwambiri pa December 13 kuti akawone Geminids, koma ndi kuwala kwa mwezi ndi kuwala kochepa mumlengalenga, simungathe kuwona meteor ambiri.
Mitengo yabwino kwambiri idzawoneka pamene kuwala kuli kokwera kwambiri kumwamba mozungulira 2: 00 am nthawi yapafupi, kuphatikizapo Kumwera kwa Dziko Lapansi, pa December 14. Mwezi udzakhazikika nthawi yomweyo. Chifukwa chake, kuyang'ana kuyambira pakulowa kwa mwezi mpaka madzulo pa Disembala 14 kuyenera kutulutsa meteor ambiri.
Mutha kuwonabe Geminids mausiku ena, isanafike kapena pambuyo pa Disembala 13-14, koma mitengo idzakhala yotsika kwambiri. Ma Geminids omaliza amatha kuwoneka pa Disembala 17.
Ndi angati a Geminids omwe owona angayembekezere kuwona Disembala 13/14?
Kunena zoona, mlingo wolonjezedwa wa anthu oonera kumpoto kwa dziko lapansi uli pafupi ndi 30-40 meteor pa ola limodzi. Owonerera ku Southern Hemisphere adzawona Geminids ochepa kuposa omwe ali kumpoto kwa dziko lapansi - mwinamwake 25% ya mitengo ku Northern Hemisphere.
Ngakhale mikhalidwe ya chaka chino si yabwino kwambiri kuwonera Geminid meteor shower, ikhalabe chiwonetsero chabwino kuti tigwire mumlengalenga wathu wausiku.
Ndipo, ngati mukufuna kudziwa zina zomwe zili kumwamba mu Disembala, onani kanema pansipa kuchokera pagulu lamavidiyo la "What's Up" la Jet Propulsion Laboratory.
