Comets

Amani Bulger

What are comets commonly called?

They are often called dirty snowballs, but research has drove some scientists to call them snowy dirtballs.

What are the parts of a comet?

Comet have three part which are the nucleus, the coma, and the tail. The solid core is called the nucleus. The nucleus develops a coma with multiple tails when a comet goes near the sun.


The next part of a comet is the coma. A coma is the fuzzy, dusty cloud around the nucleus of a comet.


The last part of a comet is the tail. The tail extends from the comet and points away from the Sun.

How big is a comet normally?

Some comets are no larger than a couple kilometers across.

Where does a comet originate?

Most comets come from the region icy bodies beyond the orbit of Neptune called the Kuiper belt. Long period comets come form distant region called the Oort cloud.

What is the distance of a comet from the sun?

Comets remain far away from the Sun. Unless they are disturbed by the gravitational pull of passing stars and pushed into closer orbits.

What is the compostion of a comet?

The solid, core of a comet is called the nucleus. Cometary nuclei are composed of an amalgamation of dust, rock, water ice, and frozen gases (carbon dioxide, carbon monoxide, methane, and ammonia).

What are 3 distinguishing characteristics of a comet?

Comets look like blazing, bright stars that can actually be seen without a telescope. When comets approach, it gets warmer and some of the ices heat up then become gas. Comets then release the dust grains that were trapped inside ice.

What missions have we visited a comet?

The first probe the we sent to visit a comet was the ISEE-3/ICE probe. It was launched in 1978. The mission ended in 1981.

Another mission July 3, 2002, the CONTOUR probe launched to study two comets.

Bibliography

Comet Parts. 2015. Wikipedia, n.p.

Orbits of the Kohoutek Comet. 2015. Wikipedia, n.p.

Depiction of Philae‍‍ '​‍s Planned Touchdown on the Comet. 2015. Wikipedia, n.p.