can the former be viewed by the naked eye?
The brightness of the Sun can cause pain from looking at it with the naked eye; however, doing so for brief periods is not hazardous for normal non-dilated eyes
Sun
The brightness of the Sun can cause pain from looking at it with the naked eye; however, doing so for brief periods is not hazardous for normal non-dilated eyes
cma (canis majoris) is so bright it is visible near the rising sun but is better known as Canis Major is a constellation which contains Sirius, the brightest star in the night sky how did this bright star gets its name? Its name is derived from the Greek word "Seirios" "glowing" or "scorching". can you name a few more bright stars? Sun, Spica etc
wiki:25659574
Sun [SEP] Observation and effects
The brightness of the Sun can cause pain from looking at it with the naked eye; however, doing so for brief periods is not hazardous for normal non-dilated eyes. Looking directly at the Sun causes phosphene visual artifacts and temporary partial blindness. It also delivers about 4 milliwatts of sunlight to the retina, slightly heating it and potentially causing damage in eyes that cannot respond properly to the brightness. UV exposure gradually yellows the lens of the eye over a period of years, and is thought to contribute to the formation of cataracts, but this depends on general exposure to solar UV, and not whether one looks directly at the Sun.