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| Neal |
 Posted: Tue Dec 12, 2006 2:56 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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High Flier
Joined: 07 Jun 2005
Posts: 6544
Age: 30  Pisces
Location: Virginia |
| Publius wrote: | No more than thou.  |
do you even know what you're talking about now? |
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| Kent Steadman |
Posted: Tue Dec 12, 2006 3:41 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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Nester
Joined: 15 Mar 2005
Posts: 732
Location: http://cyberspaceorbit.com/ |
Mercury:
Comet NEAT (C/2002 V1) At closest approach on Feb. 18th its distance from our star will was only 0.1 AU--much closer than the planet Mercury
http://www.xs4all.nl/~carlkop/neatcom.html
At the time we wondered if Mercury crossed through the tail.
Size:
the comet head measures approximately 300,000 miles in diameter, and the tail is approximately 3-4 million miles long. Comet cores can be anywhere from 10 miles to 150 miles in diameter, usually composed of nickle/iron, water ice and frozen gasses. We dont know for sure the size of the core, however, based on the known size of the coma, estimates are to the larger end of the spectrum.
http://www.hairy_ballz/forum/thread5121/pg1
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| Neal |
Posted: Tue Dec 12, 2006 3:52 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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High Flier
Joined: 07 Jun 2005
Posts: 6544
Age: 30 Pisces
Location: Virginia |
your 2nd link is dead.
not that I give a fuck what "hairy ballz forum" has to say about any of it anyway. |
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| Kent Steadman |
Posted: Tue Dec 12, 2006 4:18 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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Nester
Joined: 15 Mar 2005
Posts: 732
Location: http://cyberspaceorbit.com/ |
SIZE:
This server down since this morning:
http://www.hairy_ballz/forum/thread5121/pg1
It rendered the conservative estimate.
Size of the V1 solid core was hard to determine as it was surrounded by outburst elements. With any comet an accurate physical core size hard to determine. Guess that's why they send probes.
Another more daring estimate from exopolitics:
As predicted, the comet appeared very large, with some estimates of its coma (gases, ice, etc., surrounding the core) up to four times the size of Jupiter while having a planet sized core up to the size of Mercury.
http://www.exopolitics.org/CometNeat.htm
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| Circulator 38 |
Posted: Wed Jan 03, 2007 8:21 am Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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High Flier
Joined: 18 Jan 2005
Posts: 4712
Location: The city that rhymes with fun
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| Kent Steadman wrote: | | Comet McNaught appears to be a first time visitor to the inner solar system and could potentially not survive its brush with the Sun. |
A comet, visible in broad daylight with the unaided eye, slams into the sun.
 
quite a show for a few days around that time for
those on the Internet looking at the latest SOHO LASCO C3 imagery.
See: http://sohowww.nascom.nasa.gov/data/realtime/c3/512/
Note the timeline:
Dec 12
Kent's Post
Dec 30
Saddam's Death
Jan 12
C/2006 P1 Peak Brightness
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disclaimer: I do not necessarily agree with any article I post; I may be 100% opposed. I post for information only.
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| Kent Steadman |
Posted: Thu Jan 04, 2007 7:22 am Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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Nester
Joined: 15 Mar 2005
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| Circulator 38 |
Posted: Thu Jan 04, 2007 10:04 am Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
Description: Comet Neat and CME's |
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High Flier
Joined: 18 Jan 2005
Posts: 4712
Location: The city that rhymes with fun
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May 26, 2005
Comet Neat and CME's
When a coronal mass ejection greeted Comet NEAT, space scientists called it a “coincidence”. But in an electric universe such events deserve a second look.
The comet NEAT was discovered November 2002 by NASA's Near Earth Asteroid Tracking (NEAT) program. As the comet moved toward “perihelion”, its closest approach to the Sun, astronomers were not sure it would survive. The explosive destruction of Comet Linear three years earlier, at nine times NEAT’s distance from the Sun, underscored the danger to comets from such a close passage around the Sun.
The Sun’s glare prevented observers on Earth from viewing NEAT’s approach. But the SOHO spacecraft, stationed between Earth and the Sun, has an instrument called Large-Angle Spectrometric Coronagraph (LASCO), which blocks the Sun’s brightest light, permitting the satellite to record the comet’s dramatic swing around the Sun.
As NEAT raced through the extended solar atmosphere, a large coronal mass ejection (CME) exploded from the Sun and appeared to strike the comet. The comet responded with a “kink” that propagated down the tail. A video clip of the event can be seen here. (The disk in the center is created by the coronograph as it blocks the Sun’s glare). For astronomers, the event illustrated the dynamic interactions between comets and the solar wind.
Scientists were quick to point out that meeting with ejected material was a “chance encounter”. But was it? Though electrical theorists assert no interpretation of the event at this time, they reject the theoretical assumptions that prompt mainstream theorists to dismiss out of hand any possibility that a comet could trigger an eruption from the Sun. If the Sun is a glow discharge at the center of an electric field, and a comet carries a strong negative charge together with a vast envelope of charged particles, the categorical dismissal of mutual interactions is premature.
In fact, SOHO has recorded several instances of comets plunging into the solar corona in “coincidental” association with CMEs. Here we see two comets grazing the Sun followed by a particularly energetic blast from a mass ejection. Another instance of two comets grazing the Sun can be viewed here.
In a headline story, “Twin Comets Race To Death By Fire”, June 5, 1998, ScienceDaily.com reported:
“In a spectacular coincidence, a coronal mass ejection (CME) accompanied by an erupting prominence occurred on the southwest limb of the Sun within hours after the destruction of the comets. The CME and prominence were probably unrelated to the comets, being instead the product of weeks of intense magnetic activity in that region of the Sun”.
Perhaps the original source of this story (apparently a science writer with NASA’s Goddard Space Flight Center), paid dearly for his use of the word “probably” in the above paragraph. Only an electrical influence could justify any qualifications to the assertion of a “spectacular coincidence”. But the scientific mainstream allows for no electric force outside the Sun to have any influence on the Sun’s atmospheric behavior.
SOHO scientists make the point explicit in their discussion of sungrazing comets and CME’s:
“A popular misconception is that sungrazing comets cause solar flares and CMEs (coronal mass ejections). While it is true that we have observed bright comets approach the Sun immediately before CME's/flares, there is absolutely no connection between the two events. The sungrazer comets -- in fact all comets -- are completely insignificant in size compared the Sun”.
The statement is reasonable if the issue of “connection” and influence is decided by relative size. But from an electrical viewpoint the disregard for the powerful electric force in space is the greatest single mistake in the theoretical sciences today. How would an electric Sun respond to the approach of a relatively small but strongly charged object? Comets typically display a bright coma extending for hundreds of thousands of miles around the hidden nucleus. They can also entrain an immense envelope of hydrogen gas. We do not normally see the hydrogen envelopes of comets because Earth’s atmosphere absorbs their light. But spacecraft can detect them and measure them. Electrical theorists suggest that the ability of larger comets to hold their hydrogen clouds in place against the solar wind is a good indicator of the comet’s powerful charge.
The influence of the comet’s electrical field is far more significant than its trivial mass in relation to the Sun. What will occur electrically if the charge plasma or “atmosphere” of the comet penetrates the insulating double layer of the Sun’s plasma sheath? An analogy might be the effect of a pebble from space penetrating into the upper atmosphere of the Earth where the intruder’s plasma trail short circuits the Earth’s electric field to cause a high altitude discharge. The issue has virtually nothing to do with the respective masses of the Earth and the pebble. The disturbing image of the space shuttle [img=http://www.thunderbolts.info/tpod/2005/arch05/050223columbia.htm]Columbia[/img] being struck by a discharge that followed its plasma trail through the upper atmosphere also comes to mind.
Perhaps the observation of Nobel Laureate Hannes Alfvén, the father of plasma cosmology, can put the issue in context. It was his opinion that coronal mass ejections are caused by a breakdown or breach of the Sun’s double layer—an event that provokes an explosive exchange between the insulated plasma cell of the Sun and the plasma of surrounding space.
For the electric theorists, such questions deserve conscientious investigation, with attention to the electrical phenomena indicated in both solar and cometary behavior.
http://www.thunderbolts.info/tpod/2005/arch05/050526cometcme.htm
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disclaimer: I do not necessarily agree with any article I post; I may be 100% opposed. I post for information only.
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Posted: Fri Jan 05, 2007 1:19 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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High Flier
Joined: 18 Jan 2005
Posts: 4712
Location: The city that rhymes with fun
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Bright New Comet Could Become Brilliant
By Joe Rao
SPACE.com Skywatching Columnist
04 January 2007
A newfound comet is about to loop around the Sun and might offer skywatchers a rare and fantastic view. But comets are unpredictable, and this one has a wide range of possible outcomes, experts say.
When Australian astronomer Robert McNaught announced Aug. 7 that he had discovered a faint comet on a photograph taken at the Siding Spring Observatory in New South Wales, it was a distant and inconspicuous object. But its orbital motion at once made it clear that this comet, officially catalogued as C/2006 P1, might grow very bright right about now.
Comet McNaught's orbit [video] indicates that it will sweep to within just 15.8 million miles (25.4 million kilometers) of the Sun on Jan. 12. This rather close approach—less than half the average distance of Mercury, the closest planet to the Sun—suggests the comet has the potential to briefly evolve into a bright object. The big question is, just how bright?
Brighter than Venus?
Recent estimates have ranged widely from magnitude +2.1 (about as bright as Polaris, the North Star) to a dazzling -8.8 (about 40 times brighter than Venus)!
[The lower the magnitude number, the brighter the object. The brightest stars in the sky are categorized as zero or first magnitude. Negative magnitudes are reserved for the most brilliant objects: the brightest star is Sirius (-1.4); the full Moon is -12.7; the Sun is -26.7. The faintest stars visible under dark skies are around +6.]
The reason for the great uncertainty stems from the fact that for the past few weeks the comet has been positioned at such a relatively small angular distance from the Sun in the sky that it has been extremely difficult to get good measurements of its brightness. Now, with a little over a week to go before the comet makes its closest approach to the Sun (called perihelion), just how bright it may ultimately get and how long a tail may develop remain to be seen.
Predicting a newly discovered comet's brightness has proven historically to be difficult, especially around the time of perihelion.
Spot it now
This is the 31st comet to bear McNaught's name and at time of discovery, it was no brighter than magnitude 17—far to dim to see with the naked eye.
Observers have followed its gradual brightening as its distances from Sun and Earth decreased. It's currently both a morning and evening object, visible very low near the east-southeast horizon about 30 to 40 minutes before sunrise and very low near the west-southwest horizon about 30 to 40 minutes after sunset.
During this upcoming week, prospective observers should seek the most favorable conditions possible. Even a bright comet can be obliterated by thin horizon clouds, haze, humid air, smoke, twilight glow, city lights, or moonlight. Binoculars are strongly recommended for locating it.
But the past few days, reports suggest that Comet McNaught is becoming easier to sight even through the bright twilight glow. [Sky Maps: Morning, Evening]
Bright outlook
David Moore reported seeing the comet on New Year's Day evening from Dublin, Ireland. He writes: "After searching for over half an hour in strong twilight I saw it easily in 20x80 binoculars from an upstairs window. I could see a small fuzzy and surprisingly bright head about as bright as the mag 3.5 star Lambda Aquilae 6 degrees above it. That said, it was not an easy observation given the strong twilight and the comet was only 3.0 degrees above the horizon!"
Well-known comet observer, John Bortle of Stormville, New York caught sight of the comet just before sunrise with 15 x 80 binoculars on Jan. 2.
"My eastern view was largely obstructed by trees," Bortle said. "Still it was somewhat amazing to see the comet against such a bright sky and through all those tree branches! From experience in making similar observations, I'd judge that it was not any fainter than 2nd magnitude."
Regardless of just how bright Comet McNaught becomes, beginning on Friday, Jan. 12 and continuing through Monday, Jan. 15, it will be passing through the field of view of the Solar and Heliospheric Observatory ("SOHO"); a spacecraft that was launched in 1995 to study the Sun.
Astronomers hope to get spectacular views of the comet by utilizing SOHO's LASCO C3 camera, whose images can also be viewed in real time here.
http://space.com/spacewatch/070104_comet_mcnaught.html
Michael Jager and Gerald Rhemann photographed comet C/2006 P1 (McNaught) from Austria in twilight 45 minutes before sunrise on Jan. 3. Rhemann told SPACE.com they used 7x50 binoculars to find the comet. They estimate that today (Jan. 5) it shone at magnitude +1 and they expect to see it with the naked eye next week.
EVENING SKY MAP: Comet McNaught's predicted path as seen from mid-northern latitudes at 5 p.m. local time. The view will vary significantly depending on your latitude and sky conditions.
MORNING SKY MAP: Comet McNaught's predicted path as seen from mid-northern latitudes at 7:30 a.m. local time. The view will vary significantly depending on your latitude and sky conditions. Finding the comet in the morning will be especially tricky.
The comet's predicted path through the view of the SOHO's spacecraft's LASCO C3 camera. Credit: SOHO
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disclaimer: I do not necessarily agree with any article I post; I may be 100% opposed. I post for information only.
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| Kent Steadman |
Posted: Fri Jan 05, 2007 8:41 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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Nester
Joined: 15 Mar 2005
Posts: 732
Location: http://cyberspaceorbit.com/ |
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| green dog |
Posted: Fri Jan 05, 2007 8:49 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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High Flier
Joined: 18 Jan 2005
Posts: 6876 |
| Thanks for the charts, Circulator38! Fantastic! |
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| Kent Steadman |
Posted: Sat Jan 06, 2007 5:50 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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Nester
Joined: 15 Mar 2005
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| Rhys |
Posted: Sat Jan 06, 2007 5:58 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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Nester
Joined: 17 Jan 2005
Posts: 672 |
Amazing shot
Kent, what do you anticipate will happen during its pass with the sun.. any guess, or do you have something specific in mind?
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| Mak |
Posted: Sat Jan 06, 2007 6:18 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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tRiCkStEr
Joined: 18 Jan 2005
Posts: 14430
Location: yeshe |
Pretty amazing. We are getting a lot of high winds here and the ocean is full of white caps. I wonder if there is a connection with for solar output with the comet near and solar winds which would affect us chickens on the planet.
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| Kent Steadman |
Posted: Sat Jan 06, 2007 6:57 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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Nester
Joined: 15 Mar 2005
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| Kent Steadman |
Posted: Sat Jan 06, 2007 7:12 pm Post subject: Remember Comet V1? Now we have Comet C/2006 P1 (McNaught)
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Nester
Joined: 15 Mar 2005
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