Gulu la akatswiri a zakuthambo mothandizidwa ndi Massachusetts Institute of Technology lofalitsidwa
Exoplanet HD 21749c imazungulira nyenyezi HD 8 ndi nthawi ya masiku pafupifupi 21749. Dongosolo la HD 21749 ndi zaka 53 zowala kuchokera kwa ife. Nyenyeziyi imakhala ndi 80% ya mphamvu ya Dzuwa. Kuzungulira kwapadziko lapansi mozungulira nyenyezi yakunyumba kumatanthauza kuti kutentha kwake kumatha kupitilira madigiri 450 Celsius. Mukumvetsetsa kwathu, moyo pamwala wotentha woterewu ndizosatheka. Koma izi sizikulepheretsa kuchita bwino kwa TESS. Njira zofufuzira ndi zida zidzapangika, ndipo akatswiri a zakuthambo akuyembekeza kupeza ma exoplanets ambiri m'dera lomwe lili bwino kuchokera pamalingaliro amoyo wapadziko lapansi.
Ziyenera kunenedwa kuti Kepler orbital telescope yapeza ma exoplanets 2662 pazaka zambiri zogwira ntchito, ambiri omwe angakhale kukula kwa dziko lapansi. Ntchito ya TESS ndi yosiyana. Telesikopu ya TESS imaphunzira nyenyezi zapafupi ndipo, pamodzi ndi zida zoyambira pansi ku Chile (Planet Finder Spectrograph, PFS), zimapangitsa kuti zitheke kudziwa kuchuluka kwake komanso momwe mlengalenga wa ma exoplanets alili molondola.
Pazaka ziwiri, ntchito ya TESS ikuyembekeza kuphunzira makina opitilira 200 a nyenyezi. Asayansi akuyembekeza kuti izi zithandiza kupeza ma exoplanets opitilira 000. Setilaiti imaphimba 50% yakumwamba mkati mwa masiku 90. Mwa njira, exoplanet ina inapezeka mu HD 13,5 dongosolo - HD 21749b. Koma thupi lakumwamba ili ndi la gulu la "sub-Neptune", ndipo TESS yapeza kale zinthu zingapo zotere.
Source: 3dnews.ru