Hyperbolic Comet C-2012 S1 (ISON)

[Philosophaie]

What is happening with Hyperbolic Comet C-2012 S1 (ISON)? It is going to crash into the Sun at the end of Nov. Was it downgraded from a Comet? Here is a site that used to track it:

http://www.heavens-above.com/Comets.aspx?lat=0&lng=0&loc=Unspecified&alt=0&tz=CET

I should be big in the night sky right now and soon it should be visible in the daylight.

 

[mfb]

"used to track it"? The last observation is from today.
With a magnitude of 13.5, it is too dim to be visible in daylight, and even at night you need a telescope. It reaches its perihelion in about a month, then we'll see what happens.

 

[Chronos]

The behavior of comets is about as predictable as a cat. At present, some doubt it will ever reach naked eye visibility, while others think it may become as bright as Venus. Those who think it will achieve 'comet of the century' status are rivaled in numbers by those who think it is the harbinger of doomsday.

 

[Dotini]

ISON is currently easily visible with binoculars, but will soon disappear in the sun's glare as it goes into perihelion.

Assuming the comet doesn't disintegrate and the orbital mechanics don't change, planet Earth will begin a quick pass through the tail of C/2012 S1 (ISON) on about January 1, 2014. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=c/2012 s1;orb=1;cov=0;log=0;cad=0#orb

At this point, the nucleus will be about .449 AU (about 67 million kilometers, or 46 million miles) from Earth, and going away. The record length of a comet tail is 311 million kilometers.

There are several flavors of comet tails. First is the dust tail, which is a very fine soot. Then there are the ion tails, which can be several kinds of charged particles.

 

[pmacias]

I am familiar with the Hyperbolic Comet C-2012 S1 (ISON) and have been tracking its trajectory and behavior. From the information provided, it appears that the comet is on a path that will bring it very close to the Sun at the end of November. This is known as a perihelion passage, where the comet reaches its closest point to the Sun.

It is important to note that comets are classified based on their orbits, not on their size or brightness. The term "hyperbolic" refers to the shape of the comet's orbit, which in this case is highly elongated and takes the comet very close to the Sun. This does not necessarily mean that the comet has been downgraded, but rather that it has a unique and interesting trajectory.

The website provided is a useful tool for tracking the comet's location in the night sky. However, it is important to keep in mind that comets can be unpredictable and their brightness can vary. While it may have been expected to be more visible by now, it is still possible that it will become brighter as it gets closer to the Sun.

It is also worth mentioning that comets can sometimes break apart or disintegrate as they approach the Sun. This could potentially happen to C-2012 S1 (ISON) and could impact its visibility in the night sky.

In conclusion, it is still too early to determine the fate of Hyperbolic Comet C-2012 S1 (ISON) as it approaches the Sun. I will continue to monitor its behavior and gather data to better understand this fascinating celestial object.