Johannes Hevelius had exceptionally keen eyesight and could see stars of the seventh magnitude. He compiled a "Celestial Atlas" using both instruments, naked eye observations, and observed sunspots to accurately determine the solar rotation
Did You Miss The ‘Green Comet?’ A New Naked-Eye Comet Just Spotted Could Get Brighter Than Venus
See Naked-Eye Craters On The Full ‘Worm Moon:’ The Night Sky This Week
New image captures remnant of the first-recorded supernova. The "guest" star was documented by ancient Chinese astronomers some 1,800 years ago and remained visible to the naked-eye for more than 8 months.
Halley’s Comet: Why 2023 Is A Big Year For The Only Naked Eye Comet That Can Appear Twice In One Human Lifetime
Green Comet To Be Visible With The Naked Eye For First Time In 50,000 Years
12th century astronomers witnessed a supernovae with the naked eye. Recently, modern observations showed that the historic event was a rare Type Iax supernova which resulted from the collision of two white dwarfs.
Light pollution: Huge fall in stars that can be seen with naked eye
Once in 50,000-year comet may be visible to the naked eye
See a possible naked-eye comet at its closest to the sun on Thursday (Jan. 12)
A bright green comet may be visible with the naked eye starting later this month
Green comet nears Earth for first time since Stone Age, can be seen with naked eye
Possible naked-eye comet will visit Earth for 1st time since Neanderthals in 2023
See the rare 'planet parade' of 5 naked-eye planets in these photos by an astronomer
A Rare View Of Five Naked-Eye Planets: What To See In The Night Sky This Week
Seeing concentrations of toxins with the naked eye
How To Be The Best Naked-Eye Stargazer In The Galaxy
A Risky Solar Eclipse In Europe Sets-Up A ‘Blood Moon’ For America: The Naked Eye Sky This Week
Watch Halley’s Comet Makes Its Presence Known As Meteor Shower Rages: The Naked Eye Night Sky This Week