COMET C2012/S1 ISON : COMA/TAIL OF OVER 64,400 KM [UPDATE]

why are you using caps all the time? It makes me question your integrety.

You're not measuring the physical nucleus, that is NASA's estimate. The apparent nucleus is not the same as the physical nucleus. Radial gradient filtering is a nice way to reveal the comet's jets, but still is not a direct measurement of the physical nucleus size which is far too small to resolve with an optical telescope.

here we go again, another thread going off track due to the soul-less one.

>>>>>>>>>>> exit.

I USE CAPS SO THAT THOSE WITH PDA'S CAN READ IT EASILY..[MODERN TIMES YOU KNOW :)]

ok better ?

Dr. Astro.. will you place some ISON images in a filter program and post then ..[no rush by the way]

Off-track? I'm trying to help him understand how to properly measure the size of the comet and WHAT it is he is really measuring and what he is not really measuring.

I'll see what I can do, the comet is still far out so resolving the jets will be extremely difficult at this point.

Load em' pics doc

Last Edited by Da fuq on 04/03/2013 11:48 AM

yes better, thank you. I use a smartphone and can read lower case just fine.

This is the same Dr astroshill who believes chemical rockets is still the state of the art propulsion tech

Don't forget about the standard model of the universe and sun too.

wow a pair of trippy titties thanks for making me howl

Dr. Astro, why is it that after a lot of hype about the size of this comet, it now supposedly turns out to be a lot smaller. If everything can be calculated and after decades of experience with these early estimations, couldn't the scientist have known this? Or at least lower their tone before the comet would get in a range where data like this can be measured more reliable before making such big statements???

Comets are notoriously unpredictable and statements to that effect have mostly been glossed over by the media. Even the popular science media like space.com et al tend to jump to the most "exciting" conclusion possible even if it's not a sure thing yet.

F that man, I've been telling everyone around me to watch this massive comet. There must be some way to regelate date like this in the media. Why are not all comets overhyped? Why this one? Is there a reliable source for news like this?
The first ones that discovered this comet must have said something which the media took off with. The media doesn't make everything up.
So where does this go wrong?

The vast majority of comets don't show initial light curves projecting into naked eye magnitudes at their peaks, let alone brighter than the moon. ISON is a rare one, even if it doesn't live up to the initial projections.

Sure, just go to the minor planet center and download the raw data to crunch the numbers for yourself if you want. Software is freely available to do it.
[link to www.aerith.net]

if comets are so notoriously unpredictable why does everyone believe its going to huge, the better informed ones at the higher end could tone down such over hyped messages in the science community and media.
Weird world...

Like I said, many of those saying that also included qualifier statements, especially this famous quote from David Levy:

"Comets are like cats; they have tails, and they do precisely what they want."
-David H. Levy

[link to www.jarnac.org]

Well okay, I give up. I'm not going to spend hours playing with numbers. I guess we just have to wait and see what this comet will bring us...

Thanks for your time and effort to explain. Though I don't feel much smarter now, but thatd not your fault :D

the white one is the good doc and the black one is the OP.

here endeth the lesson.

Although Astro can piss one off to no end,...and at times, posts like a petulant child,...

I am happy to have him here, he tends to push people toward deeper understanding with his innate/inane/irrefutable knowledge base.





Z

seriously, who uses a "pda" in "modern times?"

any touch-screen mobile device is capable of magnifying the image size so you can see the text without making caps a necessity

YES

hehe I love the timestamps

...Swamp Gas.

Nothing to see here. Go ahead.

.

Last Edited by IWASTHERE on 04/03/2013 01:07 PM

:duckybrain:

haha you guys are hopeless pmsl

How strange Dr. doesn't know this
Meteroids are small pieces of space debris - usually parts of comets or asteroids - that are on a collision course with the Earth. They become meteors when they enter the Earth's atmosphere. Most meteors burn up in the atmosphere, but if they survive the frictional heating and strike the surface of the Earth they are called meteorites.

but needs the proof, I mean ... LOL

"In Chelyabinsk we saw a type of comet in which there was almost no meteorite remaining," said Alexander Bagrov, a member of the Russian Academy of Sciences' Astronomy Institute, Interfax reported

don't know if this could satisfy docs super selfish ego (scared from other people) heh
who btw did BAN my ip from his silly thread, what a wacko

WTF are you talking about? Of course I know what a meteoroid is.

You showed way too much interest in my personal identity. Not having that. I don't know if that's a bad translation or someone just speaking out of their ass, but the Chelyabinsk meteorite is an ordinary chondrite type. It's from an asteroid.
[link to astrobob.areavoices.com]