What is "suisei"

Suisei is Japanese for " comet" and the Japanese name for the planet Mercury. It may also stand for:

• Suisei (probe), a Japanese space probe to Halley's Comet
• Yokosuka D4Y Suisei, a Japanese dive bomber

Suisei (すいせい; Japanese for Comet), originally known as Planet-A, was an unmanned space probe developed by the Institute of Space and Astronautical Science (now part of the Japanese Aerospace Exploration Agency, or JAXA).

It constituted a part of the Halley Armada together with Sakigake, the Soviet/ French Vega probes, the ESA Giotto and the NASA International Cometary Explorer, to explore Halley's Comet during its 1986 sojourn through the inner solar system.