Contrary to human observations, scientific measurements indicate a 4% albedo for this object. Its namesake "armada" included the Vega and Giotto spacecraft, which traveled through its coma and were the first to observe object
Contrary to human observations, scientific measurements indicate a 4% albedo for this object. Its namesake "armada" included the Vega and Giotto spacecraft, which traveled through its coma and were the first to observe objects of its kind; the data from the spacecraft helped support the (*) "dirty snowball" hypothesis. This object is also the source for both the Eta Aquarid and Orionid meteor showers. It has a retrograde orbit around the Sun, and its period of 76 years was determined by its namesake English astronomer. For ten points, identify this short-period comet that can be seen with the naked eye.
Contrary to human observations, scientific measurements indicate a 4% albedo for this object.
Halley's Comet [accept 1P/Halley]