(Traduzione automatica) Xuntian, precedentemente noto come Chinese Space Station Telescope (CSST), è un telescopio spaziale cinese progettato per eseguire imaging multi-banda ad alta risoluzione, su vasta area e indagini spettroscopiche senza fessura del cielo alle lunghezze d’onda dall’ultravioletto all’infrarosso di 255 - 1000 nm. La telecamera di rilevamento dovrebbe coprire circa 17500 gradi quadrati di cielo in varie bande, raggiungendo magnitudini massime di circa 26.
Xuntian trasporterà una telecamera per rilievi, un ricevitore tera-hertz, un imager multicanale, uno spettrografo a campo integrale e un fantastico coronografo per l’imaging planetario.
Xuntian sarà lanciato in un’orbita terrestre bassa che coorbita con la stazione spaziale Tiangong/Stazione spaziale cinese, che consentirà l’attracco periodico alla stazione per la regolare manutenzione da parte degli astronauti.
The Chinese Space Station Survey Telescope (CSST) is an upcoming Stage-IV sky survey telescope, distinguished by its large field of view (FoV), high image quality, and multi-band observation capabilities. It can simultaneously conduct precise measurements of the Universe by performing multi-color photometric imaging and slitless spectroscopic surveys. The CSST is equipped with five scientific instruments, i.e. Multi-band Imaging and Slitless Spectroscopy Survey Camera (SC), Multi-Channel Imager (MCI), Integral Field Spectrograph (IFS), Cool Planet Imaging Coronagraph (CPI-C), and THz Spectrometer (TS). […] This review aims to provide a comprehensive overview of the CSST instruments, observational capabilities, data products, and scientific potential.
Un articolo di space.com sulle potenzialità di Xuntian.
Xuntian will, however, be a much more capable sky survey instrument [rispetto ad Hubble, NdMe], according to Chinese space officials. It carries a 2.5-billion-pixel camera and boasts a field of view around 300 times larger than the venerable Hubble, surveying the sky from near-ultraviolet to near-infrared wavelengths and delivering high spatial resolution imagery.
As preparations for launch enter the final stages, a collaborative Chinese research team built an end-to-end simulation suite to provide mock observations for both the telescope’s optical and other observation systems to replicate expected instrumental and observational conditions and evaluate the telescope’s overall performance. The results were published in the journal Research in Astronomy and Astrophysics in early January.
