S0's Video - 'ISON: Facts, Online Tools, Resources, and Discussion' Published November 9th, 2013.

(0:01) Hey folks, lets do a quick review of some Comet ISON Facts. We'll start at the JPL Orbital Diagram for C/2012 S1 ISON; it is currently inside of one AU (Earth's Distance from the Sun, at the white circle).

(0:16) Tilting to show the trajectory of the Comet from the Orbital Plane of Earth. You can see this Comet has a significant incline up-and-out of the system after it's fairly flat arrival.

(0:27) Now the first worry with Comet ISON was about meteors, because of how shallow the in-coming trajectory of the Comet comes in any break-up before it got to Earth's position could have left large chunks in our path, but, it just didn't happen and a dusting light show is probably the most we will see.

(0:45) But well before that, we will watch Comet ISON plunge towards the Sun. Here is the main concern at this time: despite the fervent denials of any connection between Comets and Solar Flaring by NASA and other experts, tens of thousands watching here every day and many more across the world watch Sun-diving Comet induce major flaring one after another; we'll discuss this more in a few minutes.
(1:09) We may or may not get a great show from the Comet on it's way out; that's the least predictable aspect of the Comet. But we do know, it will likely fly high out-and-away as Earth moves into where the Comet crossed our path months earlier.

(1:23) We will arrive there in mid January, and again, probably shouldn't expect more than an aesthetic light show. At the end of this video the JPL diagrams will repeat, but zoomed out so you can see how I'm using the program and then follow the link given in the about tab to explore this for yourself.

(1:42) If you have Stellarium, a free program from Stellarium.org (shown on the right), and you want to import ISON there to track it's movement….check out the rest of S0's Video to find out how to use the tools and hear FOTW!
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(1:17) ISON shot of the day is a real color image on Bruce Gary's site, which is linked everyday for you below.

(1:23) Color confirmation comes from Austria with the world famous Amateur Astronomer Michael Jäger

(2:02) ISON is about to take it's dive towards the Sun and is passing Earth's January 15th, 2013 position as you hear my voice right now.

5MIN News November 7, 2013 - ISON Brightening! Solar Flares/Geomagnetics:

(0:02) Good Morning Folks, new blog post on the Official ISON Observing campaign. It gives an underwhelming description of the potential break-up or survival possibilities of ISON.

(0:12) The Comet has now begun to brighten considerably according to Bruce Gary's site which is anything but 'underwhelming.' He noted a change to the brightening rate and if you'll remember: this is expected.

(0:24) Remember we showed you how ISON was going to cross the Solar System Equatorial Plane, right at the time that that big, far-side CME was set to potentially hit the comet? Can't say for sure that was the Genesis of the current brightening, but, the timing is perfect...
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Real Color Image of Comet ISON taken by Damian Peach on November 6th, 2013, which shows beginning of an ion tail.

ISON's 'two new spindly streamers'

Speedy Stats of our Solar System:

  • The Moon orbits the Earth at 1 km/s.
  • Earth orbits the Sun at 30 km/s.
  • The Sun zips through Interstellar Space at a speed of 52,000 mph or 23 km/s.
  • Solar Wind streams off of the Sun at an average speed of 300-400 km/s.
  • Comet ISON is currently traveling through the Inner Solar system at 99.99 km/s.
  • Fine-Grained debris from ISON's tail will shower Earth at a speed of 56 km/s from January 12th to January 15th, 2014.
The most recent news about ISON has been breaking through into MSM outlets, such as NBC, and has got Bob King from Universe Today sharing his excitement in the article 'Comet ISON Heats Up, Grows New Tail,' which was published on November 7th, 2013. An excerpt from the article:
"I’m starting to get the chills about Comet ISON. I can’t help it. With practically every telescope turned the comet’s way fewer than three short weeks before perihelion, every week brings new images and developments. The latest pictures show a brand new tail feature emerging from the comet’s bulbous coma. For months, amateur and professional astronomers alike have watched ISON’s slowly growing dust tail that now stretches nearly half a degree or a full moon’s diameter. In the past two days, photos taken by amateur astronomers reveal what appears to be a nascent ion or gas tail. Damian Peach’s Nov. 6 image clearly shows two spindly streamers."

ISON now has two Ion Tails according to Dr. Tony Phillips at SpaceWeather.com:

Posted on Nov. 11th, 2013: 

"Amateur astronomers are getting a better look at Comet ISON as it dives toward the sun for a Nov. 28th close encounter with solar fire. As the heat rises, the comet brightens, revealing new details every day. This photo, taken November 10th by Michael Jäger of Jauerling Austria, shows a beautiful double tail...

One tail is the ion tail. It is a thin streamer of ionized gas pushed away from the comet by solar wind. The filamentary ion tail points almost directly away from the sun.

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Photo was taken on November 10th, 2013 by Michael Jäger of Jauerling, Austria.
The other tail is the dust tail. Like Hansel and Gretel leaving bread crumbs to mark their way through the forest, ISON is leaving a trail of comet dust as it moves through the solar system. Compared to the lightweight molecules in the ion tail, grains of comet dust are heavier and harder for solar wind to push around. The dust tends to stay where it is dropped. The dust tail, therefore, traces the comet's orbit and does not point directly away from the sun as the ion tail does..."

Fair Use iFrame of Comet ISON 2013 via: http://www.cometison2013.co.uk/perihelion-and-distance/

 


Comments

Francesca
12/02/2013 4:14pm

I want to sign up, but cannot find a place for the code word, but, I just relistened, perhaps it is for web owners? or website ppl?
Thanks for all that you do!

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