All times in UTC ·
Dashed edge = started before, or continues beyond, this day
Events on Monday 27 February 1843 1
1843Great Comet of 1843 reaches perihelionSungrazing comet visible in daylightThe Great March Comet passed extremely close to the Sun and became visible in daylight. Its tail stretched across a large part of the sky, and it was one of the brightest comets of the nineteenth century.