0
Always changing, and no two comets are the same. Some comets, like Halley's Comet, don't come too close to the Sun each pass, and don't get all THAT far away; between 0.5 and about 30 AU, for Halley. Other comets go a REALLY long way out; hundreds, perhaps even thousands of AU out from the Sun.
And of course, there have been at least six comets observed, so far this year, to actually fall INTO the Sun and be destroyed.
What else can I help you with?
When a comet is close to the sun is it faster or slower than when it is far away from the sun?
The comet enters the sun's orbit with a constant velocity.
How far is Hayley's comet from the sun?
Hayley's comet is not always the same distance from the sun. This is because it has an elliptical orbit. When the comet is closest to the sun the ice begins to burn up forming the tail.
How far away is Halley's comet from the sun?
Halley's Comet is currently a little beyond the orbit of Neptune.
Which part of the comet exists when the comet is close to the sun and also when it is far from the sun?
The nucleus is the bulk of the comet, this is present all the time until it eventually breaks up after many orbits. close to the sun, it gives of two tails as the sun heats the comets surface. Far from the sun it would just look like a rock that also contains a high proportion of ice.
Which part of the comet exists both when the comet is close to the sun and when the comet is far away from the sun?
Near the sun: A cometary nucleus has a "corona" (a vapor outgassing of it's nucleus, up to a million times wider than the comet itself - this is what we see as the "head" of the comet), and one or several "tails". The "tail" we usually see is the vapor trail, but sometimes a secondary gas trail is also visible. Far from the sun, it is just the nucleus. Typically 3 to 10 kilometers wide, oddly shaped, like a potato or a peanut and, somewhat surprisingly , very dark in color, like soot.
Is the head of the comet on the opposite side of the comet from sun?
No. The tail of the comet points away from the sun.
The tail of a comet is longest when the comet is?
The tail of a comet is longest when the comet is closest to the sun, as the sun's heat causes the comet's icy surface to vaporize, creating a bright glowing tail that streams away from the comet.
What a heavenly body that has a head and a tailand orbit around the sun?
That sounds like the description of a comet. However, please note that comets ONLY have a tail when they are close to the Sun. During most of their orbit, they are too far away from the Sun to have a tail.
Which is the largest the earth the sun or the a comet?
The sun is the largest out of the three and then the earth and then a comet.
How does the sun create a tail on a comet?
The sun creates a tail on a comet because of solar radiation and solar wind on the nucleus of the comet. A comet is an icy body that is seen when it passes close to the sun.
Why is a comets tail is in front of the comet?
A comet's tail is always pointed away from the Sun due to the solar wind. As the comet moves closer to the Sun, solar radiation and solar wind push the dust and gas away from the comet, creating the tail that appears to extend ahead of the comet in its orbit.
Which solar system object has an orbit that comes very close to the sun at one end and goes far away from the sun at the other end?
A comet
