Chinese Thousand Sails satellites visible to naked eye

Sky and Telescope report on the brightness of the Chinese Qianfan ("Thousand Sails") constellation satellites, which will add 14,000 new satellites to Low Earth Orbit, at an altitude of 800km, above SpaceX's Startlink Satellites but below those of Eutelsat's OneWeb constellation.  

The first 18 Qianfan satellites were recently launched, and the launch vehicle broke apart causing a field of debris.  Observations of these initial satellites show that they are bright enough to be seen with the naked eye.

Despite the lack of regulations governing satellite brightness, which can have a detrimental effect on stargazing and astronomy, both SpaceX and Starlink have taken steps to address this.