COMET 2002/V1 (BiG) ! - Page 5

Orlando · #**121** (**permalink**) 25-February-2003, 10:11 AM

Image #2 not working, so let's go here.

http://sci.esa.int/content/news/inde...id=1&oid=18595

Enlarge the image(look at Mercury) than look at V1..remember same location, but V1 is 19 million miles closer to the sun, but yet V1 is bigger in size.

compare both images side by side.
So, if anybody believes that Comet V1 was ten miles big.

No comment.

[ This Message was edited by: Orlando on 2003-02-25 05:20 ]

Greenhalgh · #**122** (**permalink**) 25-February-2003, 01:11 PM

Yea, but the problem is that Mercury is not burning up in the sun. The elements on the comet are reacting, causing this massive (and I mean massive) flare up. You may be right that the comet is not 10 miles diameter, but i don't think it is much far off that figure.

Laser Jock · #**123** (**permalink**) 25-February-2003, 01:41 PM

Quote:

On 2003-02-24 23:11, chivis wrote:

I appologize if I came on a little strong for my first few posts....I am no troll! I'm just a person with some very strong feelings and many questions.

~Chivis

I apologize. Your first posts were very troll-like. I'm willing to give you a chance to redeem yourself.

Laser Jock · #**124** (**permalink**) 25-February-2003, 02:07 PM

Quote:

On 2003-02-25 04:40, Orlando wrote:

When I first saw the Soho images of 2/18/03, I believed like many other people that this comet was the size of Jupiter, but after examing the images of prior Soho images. I now believe that Comet 2002/V1 was not the size of Jupiter, more like the size of the planet Mercury(just smaller than Venus), here's why.

Hale_Bopp,sts60,Tom,Duncan, Nimruth,chivis,Greenhalgh, anybody with the proper computor equipment, that cann post mulitiplie images side by side ?,ie: The planets (Mercury & Venus).

Using Soho data from the past.

images #1.

http://soho.nascom.nasa.gov/hotshots/2000_05_03/

Images #2.

http://sci.esa.int/content/searchim....8595&ooid=1860

The key here is the Planet Mercury location(Same as V1 on 2/19) V1 was @ 19 million miles closer to the Sun then Mercury.

Images #3.

http://sohowww.nascom.nasa.gov/data/...18_0554_c3.gif

This was the point when V1 was only 8-9 million miles from the Sun ?

let's use these planets (Mercury & Venus)
as referance points (markers) for distances & size.

[ This Message was edited by: Orlando on 2003-02-25 05:26 ]

I can't get the links for image #2 and #3 to work but I get the idea. You seem to be trying to compare the relative brightness between Mercury, Venus, and NEAT on the SOHO images and imply that someone can obtain information on the relative sizes of all three. That assumption is just nonsense. Why? Let's list the reasons. First, planets are not like comets. They have different composition so they reflect light differently. Second, comets (when near the sun) have a large coma or gas cloud where material is bubbling off the surface that surrounds the central core. This cloud has not much more density than the vacuum of space (negligible mass), but can give the comet a large appearance. Third, assuming that you can somehow get around the points above, you need to take into account both the distance from the Sun to the planet/comet and the distance from the planet/comet to Earth. The radiance of an object falls off as the inverse square of the distance, so it is vital to take this into account. Fourth, the CCD pictures of both the planets and the comet are clearly saturated. As a result, accurate data about the relative size and brightness have been lost.

[Edited for spelling]
_________________
"I am not left handed either."

[ This Message was edited by: Laser Jock on 2003-02-25 09:11 ]

Orlando · #**125** (**permalink**) 25-February-2003, 08:17 PM

Thanks ,
Greenhalgh & Laser Jack for the come-back and basic 101.

I have a another question, what about this image from Italy "Col Druscie Observatory"

http://aac.sunrise.it/comete/2002V1-030123ds.jpg

Question #1. What kind of image is that ? Infrareds ?

Question #2. The Italian astronomer is saying something to the effect that there is
"evidenzia una seconda coda"

evidence of a second coma ,or core(nucleus)??

Can you explain that ,please.

The core is a prefect Ball.

http://acc.sunrise.it/comete/2002v1.htm

Question #3. If they are right about a second coma(core),or nucleus in a prefect ball circle shape form, also looks like a couple of outer shields in that image.

Q- Is this common ?

Thanks again, for the 101 [img]/phpBB/images/smiles/icon_smile.gif[/img]

tazmandevil3 · #**126** (**permalink**) 25-February-2003, 09:26 PM

If NEAT were heading for us, wouldn't we be able to see it?

http://soho.estec.esa.nl/data/realti...20_2342_c3.gif

Also, I don't think anyone answered my question, or I just missed it...but what in the world IS that?

Laser Jock · #**127** (**permalink**) 25-February-2003, 09:42 PM

Quote:

On 2003-02-25 16:26, tazmandevil3 wrote:

http://soho.estec.esa.nl/data/realti...20_2342_c3.gif

Also, I don't think anyone answered my question, or I just missed it...but what in the world IS that?

You just missed it. Here is my answer from my post on page 3 of this thread.

Quote:

Actually, I think it's artificial. To quote the BA (from http://www.badastronomy.com/bad/misc/planetx/soho.html ):

Quote:

As far as other "anomalies" in SOHO images go, there are many, but all the ones I have seen have rational explanations. Sometimes you see what look like palm fronds coming out, fanning across the image. I asked a SOHO person, and they said that sometimes debris gets knocked off the satellite (there are a few moving parts on the satellite that can jolt it) and this stuff drifts on front of the camera. They are out of focus at first, and as they move away they get more and more in focus. That's why you get the palm frond shape; the thick base is actually when the particle is close, and the narrow tip is when it's far away. It's a time exposure of something coming into focus.

Also, heliopause found this on Spaceweather.com which says essentially the same thing.

Quote:

It is probably debris from the SOHO spacecraft itself," explains Brekke. "We have seen these things in several hundred images. It happens occasionally when bits of insulating material flake off the solar-facing surface of the vehicle. The strange shape could be explained by debris falling into the telescope. At the beginning of the exposure it is in front of the telescope and almost in focus (lower right). Then it falls towards the mirror and grows to a total blur."

_________________
"I am not left handed either."

[ This Message was edited by: Laser Jock on 2003-02-25 16:43 ]

tazmandevil3 · #**128** (**permalink**) 26-February-2003, 03:34 AM

Alright, thanks. A lot of people who think the pictures are faked and the comet's heading right towards us ( [img]/phpBB/images/smiles/icon_rolleyes.gif[/img] ) said that this was actually Comet NEAT again, but that doesn't make sense...I mean, look at previous pictures of NEAT, and then look at that thing. Sure as heck doesn't look the same to me!

[ This Message was edited by: tazmandevil3 on 2003-02-25 22:35 ]

Orlando · #**129** (**permalink**) 26-February-2003, 10:09 AM

Does anybody know when Comet 2002/V1 will be seen again ?

Is today (Wednesday) the day ?

Orlando · #**130** (**permalink**) 26-February-2003, 08:19 PM

Is there ANY NEW UPDATE, or sighting of Comet 2002/V1, Yet ?

Does anybody have any new data ?

please.

Greenhalgh · #**131** (**permalink**) 26-February-2003, 08:35 PM

Check out http://www.spaceweather.com

They have had a few sighting of it and confirm it is not heading anywhere near Earth. [img]/phpBB/images/smiles/icon_wink.gif[/img]

tazmandevil3 · #**132** (**permalink**) 27-February-2003, 01:04 AM

When will it be visible again in the Northern Hemisphere? I hope it is, because by the time I learned about this comet, it was too late to see it in the night sky where I live.

Orlando · #**133** (**permalink**) 27-February-2003, 07:50 AM

THANK YOU, very much [img]/phpBB/images/smiles/icon_smile.gif[/img]

Orlando · #**134** (**permalink**) 27-February-2003, 11:02 AM

The image of V1 from Buenus Aires, Argentina
is Awesome( Great), it still looks BIG !

We NEED MORE images & close-ups.
There are Two working Observatories in our Southern skys, both are next door to Argentina. Chile.

The Cerro Tololo Inter-American Observatory
in Chile haves POWERFUL Telescope to LOOK at V1 & post images of Close-ups.

If interested in TRYING to get images contact them at:

webmaster@ctio.noao.edu

There website is :

http://www.ctio.noao.edu

-------------

The 2nd Observaatory in Chile is run by the
European Southern Observatory.

http://http.hq.eso.org/eso-homepage.html

--------

Send them emails asking them to PLEASE take pictures of V1. (Close-ups), let's see.

So people ALL OVER the world can Rest Better.

The ones following this event [img]/phpBB/images/smiles/icon_smile.gif[/img]

logicboy · #**135** (**permalink**) 27-February-2003, 03:20 PM

Here is a great site

calendar

#**136** (**permalink**) 27-February-2003, 04:57 PM

<a name="3-2-27.REM"> page= 3-2-27.REM aka REMember? 3-2-28?
On 2003-02-27 10:20, logicboy wrote:
Here is a great site

http://www.jpl.nasa.gov/calendar/#0402
hubishism2
http://www.jpl.nasa.gov/calendar/
3
http://web.jpl.nasa.gov/
http://www.jpl.nasa.gov

Orlando · #**137** (**permalink**) 02-March-2003, 06:17 AM

Good bye Big Mama [img]/phpBB/images/smiles/icon_smile.gif[/img] . You came in Blue/white.

http://cometography.com/lcomets/2002v1.html

see: Michael Jager(Austria) photo

and now you leave us BLOOD RED.(28feb03)

http://science.nasa.gov/spaceweather.../Oyhenart1.jpg

hmmm

[ This Message was edited by: Orlando on 2003-03-02 01:20 ]

Greenhalgh · #**138** (**permalink**) 02-March-2003, 05:59 PM

"Although the comet was only 4 degrees above the horizon at sunset, we could see it easily using binoculars," says Guillermo. "The comet's tail is at least two degrees long."

I think the keyword here is Sunset [img]/phpBB/images/smiles/icon_biggrin.gif[/img] I'm assuming this is why the comet appears red. Check out the SpaceWeather.com front page.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode