Quasar APM 08279+5255: a low-res spectrum and redshift
After the very positive results with quasar 3C 273, we tried to get a spectrum of APM 08279+5255. This quasar is shining at mag. 15.2 and is located at a distance of 12 billions...
After the very positive results with quasar 3C 273, we tried to get a spectrum of APM 08279+5255. This quasar is shining at mag. 15.2 and is located at a distance of 12 billions...
– Comet C/2023 A3 Tsuchinshan-ATLAS: online observation (21 Oct. 2024)