Get ready for Comet Ison

[Analoguesat]

I cant get onto the NASA soho site to check this but someone has just posted this pic on one of the fb pages I look at

 

[Channel Hopper]

Seen the same, but the trajectory really isn't right.

Mass and velocity of a smaller remnant would not follow a wider path around the sun.

 

[Channel Hopper]

And the animation of the event, in which I surmise ISON exploded at around 20.00 hours, throwing a shower of fragments off into the ether.

http://spaceweather.com/images2013/28nov13/rip_anim5.gif?PHPSESSID=s2l7b0hasemme8id6fm1k8tuh3

Despite the optimism, I doubt this will be a naked eye comet in the next few weeks

RIP ISON

 

[Analoguesat]

If itsd clear tonight Im off outside to see if I can see Comet Lovejoy which should be high in the north atm

http://www.skymania.com/wp/wp-content/uploads/2013/11/lovejoy_chart_nov1.gif

 

[Channel Hopper]

If itsd clear tonight Im off outside to see if I can see Comet Lovejoy which should be high in the north atm

http://www.skymania.com/wp/wp-content/uploads/2013/11/lovejoy_chart_nov1.gif

No hotlinking apparently

I've been looking at the SOHO animation of last nights event (and been playing with false colours), and there is a huge amount of debris that streams out of the trajectory Ison took on the exit, as though it glanced off something solid......

 

[Analoguesat]

http://www.skymania.com/wp/2013/11/find-comet-ison-plus-encke-lovejoy.html/8175/

halfway down the page

 

[Channel Hopper]

New image from the other Stereo craft, apparently showing 'something big fell orf' as she went into the curve.

A bit too big to upload

http://wattsupwiththat.files.wordpress.com/2013/11/ison_poof.gif

Using Macromedia flash, the change to the trajectory starts at 17.39, or about an hour before perihelion / closest approach

 

[Channel Hopper]

And continuing SOHO imagery, with a definite relight of the comet, so there may be something to see next month, during a cloudless sky of course

http://www.nasa.gov/sites/default/files/ison-survives_0.gif

 

[Channel Hopper]

Some people are kitting some foil underwear because of a lack of information on the new trajectory of Ison.

http://www.godlikeproductions.com/forum1/message2424265/pg1

And a (photoshopped ) picture taken of the comet on a mobile phone.

Tonight's show would be perfect for the Sky at Night presenters team to provide some accurate and up to date information, but I fear it will be a missed opportunity.

I might just get my telescope out to have a look.

 

[Channel Hopper]

Not sure how up to date/accurate the data on this site is.

http://theskylive.com/ison-tracker

The important numbers are however

29,899,840 km [94.5 km/s] Earth dist: 127,294,710 km [84.5 km/s]

As long as they aren't the same, the turkey foil will remain in the packet.

 

[Channel Hopper]

Hmmmm, the ephemeris info doesn't take into account the changes on Friday

2014 11 02 08 14 55.6 +38 58 26 5.0412 5.3289 101.5 10.5 17.8
2014 11 03 08 14 39.9 +39 02 32 5.0356 5.3395 102.5 10.5 17.8
2014 11 04 08 14 23.0 +39 06 40 5.0301 5.3500 103.5 10.4 17.8
2014 11 05 08 14 05.1 +39 10 50 5.0247 5.3605 104.6 10.3 17.8
2014 11 06 08 13 46.2 +39 15 02 5.0193 5.3710 105.6 10.2 17.8
2014 11 07 08 13 26.1 +39 19 16 5.0140 5.3815 106.6 10.2 17.8
2014 11 08 08 13 05.0 +39 23 32 5.0089 5.3919 107.6 10.1 17.9
2014 11 09 08 12 42.7 +39 27 50 5.0038 5.4024 108.6 10.0 17.9
2014 11 10 08 12 19.4 +39 32 09 4.9988 5.4129 109.7 9.9 17.9
2014 11 11 08 11 55.0 +39 36 30 4.9939 5.4233 110.7 9.8 17.9
2014 11 12 08 11 29.5 +39 40 52 4.9892 5.4337 111.7 9.7 17.9
2014 11 13 08 11 02.8 +39 45 16 4.9845 5.4442 112.7 9.7 17.9
2014 11 14 08 10 35.1 +39 49 40 4.9800 5.4546 113.8 9.6 17.9
2014 11 15 08 10 06.3 +39 54 06 4.9756 5.4650 114.8 9.5 17.9
2014 11 16 08 09 36.4 +39 58 32 4.9714 5.4754 115.8 9.4 17.9
2014 11 17 08 09 05.4 +40 02 59 4.9672 5.4858 116.9 9.3 17.9
2014 11 18 08 08 33.3 +40 07 26 4.9633 5.4961 117.9 9.1 17.9
2014 11 19 08 08 00.1 +40 11 53 4.9595 5.5065 119.0 9.0 17.9
2014 11 20 08 07 25.8 +40 16 21 4.9559 5.5169 120.0 8.9 17.9
2014 11 21 08 06 50.5 +40 20 48 4.9524 5.5272 121.1 8.8 17.9
2014 11 22 08 06 14.0 +40 25 16 4.9491 5.5376 122.1 8.7 17.9
2014 11 23 08 05 36.5 +40 29 43 4.9460 5.5479 123.1 8.6 17.9
2014 11 24 08 04 58.0 +40 34 09 4.9431 5.5582 124.2 8.5 17.9
2014 11 25 08 04 18.4 +40 38 34 4.9403 5.5685 125.2 8.3 17.9
2014 11 26 08 03 37.7 +40 42 59 4.9378 5.5788 126.3 8.2 17.9
2014 11 27 08 02 56.1 +40 47 22 4.9355 5.5891 127.3 8.1 17.9
2014 11 28 08 02 13.4 +40 51 44 4.9333 5.5994 128.4 7.9 18.0
2014 11 29 08 01 29.7 +40 56 04 4.9314 5.6096 129.4 7.8 18.0
2014 11 30 08 00 45.1 +41 00 23 4.9298 5.6199 130.4 7.7 18.0
2014 12 01 07 59 59.4 +41 04 40 4.9283 5.6301 131.5 7.5 18.0
2014 12 02 07 59 12.8 +41 08 54 4.9271 5.6404 132.5 7.4 18.0
2014 12 03 07 58 25.3 +41 13 06 4.9261 5.6506 133.5 7.3 18.0
2014 12 04 07 57 36.9 +41 17 16 4.9254 5.6608 134.6 7.1 18.0
2014 12 05 07 56 47.5 +41 21 23 4.9249 5.6711 135.6 7.0 18.0
2014 12 06 07 55 57.3 +41 25 27 4.9246 5.6813 136.6 6.8 18.0
2014 12 07 07 55 06.2 +41 29 28 4.9247 5.6915 137.6 6.7 18.0
2014 12 08 07 54 14.3 +41 33 26 4.9249 5.7016 138.6 6.6 18.0

http://scully.cfa.harvard.edu/cgi-bin/returnprepeph.cgi?d=c&o=CK12S010

That foil is starting to look attractive.

 

[Channel Hopper]

Image of Ison (allegedly)taken from Mount Athos, Greece yesterday





http://www.agioritikovima.gr/agnea/33662-mia-prοti-eikon

 

[Channel Hopper]

I've just recalled the closest approach of the comet to earth was expected on, or around the 15th of December, where it would be approximately 3.4 million miles away, give or take a few thousand. There is no revised data anywhere, at least from my searches), despite the earlier Sun's 'gravity assist' calculation.

 

[PaulR]

Yeah, really. Below the cloud cover as well - how gullible do they think people are?

 

[Analoguesat]

Image of Ison (allegedly)taken from Mount Athos, Greece yesterday

View attachment 60023



http://www.agioritikovima.gr/agnea/33662-mia-prοti-eikon

Thats below the clouds

 

[Channel Hopper]

Using Ison (or what's left of her) for interstellar travel.

If it survives its solar encounter, the comet will be flung back into the Oort Cloud – the distant realm of the comets – and it may even be ejected from the Solar System entirely on a parabolic trajectory. That’s a remarkable thought: the comet would enter interstellar space, to wander lonely between the stars and to maybe, one day, be picked up by another star. The comet highway could work both ways – the short period comet 96P/Maccholz is suspected by some scientists to have originated from another star system

http://www.centauri-dreams.org/?p=29005

 

[Topper]

The universe is just one giant unpredictable pinball machine with gravity flippers

 

[Channel Hopper]

The original tracking page has still not been updated with the new path.

http://stereo-ssc.nascom.nasa.gov/comet_ison/

 

[Channel Hopper]

This comet is no more, ceased to be, expired and gone to meet his maker, a stiff, bereft of life, pushing up the daisies, it's an ex-comet.....

http://www.skyandtelescope.com/news/So-It-Ends-for-Comet-ISON-234123671.html






















No no he's not dead, he's, he's restin'!

The Hubble Space Telescope will also be taking a look around mid-December, when the comet's remains exit from Hubble's no-pointing zone around the Sun. But Hubble cannot do wide-field imagery. The hope is for some solid, inactive fragments of the former nucleus to be large enough for Hubble to detect as tiny pinpoints.

 

[Channel Hopper]

Finally, the autopsy

http://www.nasa.gov/content/goddard/fire-vs-ice-the-science-of-ison-at-perihelion/#.UqiV5_RdV8E