Basic Facts
Does the comet pass all of the planets orbits during its journey?
Yes, it does
What is Halley's Comet, and every other comet made of?
It is made of ice, dust, and gas
How long is the length of a day on Halley's Comet?
a. 5.9 Earth days
b. Comets don't have days
c. 2.2 Earth days
d. 1.7 Earth days
The correct answer is c. 2.2 Earth days
Was Halley's Comet the first comet to be extensively studied by a space craft?
Yes
How far out does the comet go?
As far out as Pluto
What type of comet is Halley's Comet considered because of its short orbital period?
Short-term comet
What is the diameter of Halley's Comet?
a. 7.7 miles
b. 10.1 miles
c. 5.8 miles
d. 6.8 miles
The Correct answer is d. 6.8 miles
What is the length of a year on Halley's Comet?
a. Comets don't have years
b. 52.4 Earth Years
c. 89.6 Earth years
d. 76.1 Earth years
The correct answer is d. 76.1 Earth Years
Approximately how often is Halley's Comet visible from Earth?
Halley's Comet is visible from earth every 75 years
What author was born soon after Halley's Comet was visible from Earth in 1835, and died the day after is was visible from Earth in 1910?
Mark Twain
What year did researchers use a spacecraft to get closer to the comet?
a.1910
b.1986
c. Researchers never did that
d. 1758
The correct answer is b. 1986
What percent of its original mass has Halley most likely lost over her last 2,000-3,000 orbits?
a. 80-90%
b. 100-110%
c. 75-85%
d. 40-50%
The correct answer is a. 80-90%
Who discovered Halley's Comet?
Edmond Halley
When will the next sighting of Halley's comet be?
2061
How long can the coma (tail) of Halley's Comet reach?
a. 57,800 miles
b. 62,000 miles
c. 75,000 miles
d. 62,001 miles
The correct answer is b. 62,000 miles
What meteor shower, occurs annually in October and is caused by pieces from Halley's Comet?
a. The Draconid meteor shower
b. The Perseids meteor shower
c. The Orionid meteor shower
d. The Leonids meteor shower
The correct answer is c. the Oriniod meteor shower
When was the first documented sighting of Halley's Comet?
239 B.C
When was the last sighting of Halley's Comet?
1986
What is the radius of Halley's Comet?
a. 3.4175 miles
b. 2.9920 miles
c. 3.4285 miles
d. 7.3206 miles
The correct answer is a. 3.4175 miles