comet tsuchinshan - atlas appearing in evening night sky above the mountain inthailand

night evening sky dusk horizon morning sunset sunrise comet tsuchinshan atlas appearing 2023 mounta thailand tourists taking mountain inthailand 2024 astronomical astrochemist astronomers approach appearing arrives astronaut asteroid alert bright cross china coming dust dark discovered distance early evening elliptical gas hemisphere horizon ice impact journey location looking long magnitudes night october observing solar star strips september sunset sunrise science sight space transit tail taking telescope tsuchinshan tropics tourists terrestrial watching west