When did Hailey's comet change to Halley's comet?

Answer 1

Halley's Comet is a long-term comet that appears about once every 75 to 76 years. It notably appeared in the year of Mark Twain's birth (1835) and again in the year of his death (1910). Its most recent appearance was in 1986 and it will not approach the Sun again until 2061.

Answer 2

We only see it every 76 years. We last saw it in 1986 and we'll next see it (well some of us) in 2061. It was recently observed by telescope in 2003.

Answer 3

The comet's name was officially changed from "Hailey's Comet" to "Halley's Comet" in 1985 in honor of the astronomer Edmund Halley who calculated its orbit and predicted its return.

Answer 4

when Edmond Hailey died