Return to the Cloudy Nights Telescope Reviews home page


Observing >> Solar System Observing

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | >> (show all)
Tonk
Postmaster
*****

Reged: 08/19/04

Loc: Leeds, UK, 54N
Re: Comet ISON - Cooked well done? new [Re: mattyfatz]
      #6218600 - 11/27/13 03:39 AM

Quote:

These so called "Experts" are making their best guess now,




Please treat our acamdemics with respect - they are doing the hard work measuring and trying to interpret the data. Sure we can all sneer at this because we apparently know better ....

What they are doing is called the Scientific Method ... observe, form an hypothesis, predict, check results ... and so on

I think Carl Battams says it best ...

Quote:

Astronomer Karl Battams of NASA's Comet ISON Observing Campaign urges readers to remember the following: "Comet ISON is a dynamically new sungrazing comet, fresh in from the Oort Cloud, and the last time we saw an object like this was never! Furthermore, a sungrazing comet just days from perihelion has never been studied in this kind of detail - we're breaking new ground! When we factor in your standard 'comets are unpredictable' disclaimer, what we have is a huge recipe for the unknown."




Nothing "so called" here ... thanks


Post Extras: Print Post   Remind Me!   Notify Moderator  
boandpokey
sage
*****

Reged: 07/25/13

Loc: Auburndale, Fl
Re: Comet ISON - Cooked well done? new [Re: Tonk]
      #6218726 - 11/27/13 07:51 AM

looks oon the soho shot that there is no nucleus left...

Post Extras: Print Post   Remind Me!   Notify Moderator  
swalker
Imaging Editor - Sky & Telescope
*****

Reged: 01/22/07

Loc: 42.9225°N, 71.2242°W
Re: Comet ISON - Cooked well done? new [Re: boandpokey]
      #6218740 - 11/27/13 08:05 AM

I highly doubt you can draw that conclusion from the current SOHO images boandpokey. It still looks like a comet, though its not as bright as lovejoy was in 2011...

Post Extras: Print Post   Remind Me!   Notify Moderator  
Rich (RLTYS)Moderator
Postmaster
*****

Reged: 12/18/04

Loc: New York (Long Island)
Re: Comet ISON - Cooked well done? new [Re: swalker]
      #6218791 - 11/27/13 08:44 AM

Isn't that the comet on the right side of the SOHO image?????

Rich (RLTYS)


Post Extras: Print Post   Remind Me!   Notify Moderator  
boandpokey
sage
*****

Reged: 07/25/13

Loc: Auburndale, Fl
Re: Comet ISON - Cooked well done? new [Re: Rich (RLTYS)]
      #6218813 - 11/27/13 08:55 AM

yes

Post Extras: Print Post   Remind Me!   Notify Moderator  
Dave M
Postmaster
*****

Reged: 08/03/04

Loc: Ohio
Re: Comet ISON - Cooked well done? new [Re: boandpokey]
      #6218889 - 11/27/13 09:40 AM

I`ll take my ISON medium rare, charred on the outside icy gaseous on the inside
Seriously though, i hope it survives and gives us something
great to remember.


Post Extras: Print Post   Remind Me!   Notify Moderator  
BrooksObs
professor emeritus


Reged: 12/08/12

Re: Comet ISON - Cooked well done? new [Re: Tonk]
      #6218912 - 11/27/13 09:53 AM

Quote:

Astronomer Karl Battams of NASA's Comet ISON Observing Campaign urges readers to remember the following: "Comet ISON is a dynamically new sungrazing comet, fresh in from the Oort Cloud, and the last time we saw an object like this was never! Furthermore, a sungrazing comet just days from perihelion has never been studied in this kind of detail - we're breaking new ground! When we factor in your standard 'comets are unpredictable' disclaimer, what we have is a huge recipe for the unknown."




Nothing "so called" here ... thanks




Well, pro or not, I'm afraid Dr. Battams doesn't quite know all his facts. ISON is not the very first well observed dynamically "new" sungrazing/sunskirting comet. In 1962 Comet Seki-Lines followed an orbit with only a slightly greater value of "q" than ISON's and was closely followed except perhaps during a very few days immediately surrounding its perihelion and at a number of wavelengths, as well.

BrooksObs


Post Extras: Print Post   Remind Me!   Notify Moderator  
krp
Vendor. DarkSiteFinder.com


Reged: 11/10/10

Loc: Central Illinois
Re: Comet ISON - Cooked well done? new [Re: BrooksObs]
      #6219033 - 11/27/13 10:58 AM

If SOHO showed the comet breaking up today, would the tail and debris still go around the sun and be visible from earth?

Post Extras: Print Post   Remind Me!   Notify Moderator  
The Mighty Mo
professor emeritus


Reged: 10/12/13

Loc: South of North, North of South...
Re: Comet ISON - Cooked well done? new [Re: BrooksObs]
      #6219055 - 11/27/13 11:05 AM

Thanks for clarifying. That statement, along with the "fresh in from the Oort Cloud, and the last time we saw an object like this was never" seemed not just odd but plain wrong. I was certain we'd seen and studied new comets before.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Vronscki
newbie


Reged: 11/27/13

Re: Comet ISON - Cooked well done? new [Re: The Mighty Mo]
      #6219092 - 11/27/13 11:28 AM

Have you guys seen in the C3 images when the sun burst hits Ison?
From 12:54 to now, it started to glow a lot more and now has that horizontal glare.
Is this observation correct?


Post Extras: Print Post   Remind Me!   Notify Moderator  
Larry F
Carpal Tunnel
*****

Reged: 05/24/04

Loc: Westchester, NY
Re: Comet ISON - Cooked well done? new [Re: BrooksObs]
      #6219152 - 11/27/13 11:53 AM

You can't fault any of the astronomers, amateur or professional, who are observing ISON. It's rather amazing: mag 18.8 when discovered and immediately imaged by amateurs, an accurate ephemeris generated right away, tracked and photographed by many amateurs this season, and now observed by all manner of professional observatories and even sun-observing satellites. We will be treated to a live show over the Internet tomorrow at perihelion. That it is likely not to be a great naked-eye visual show is merely the odds playing out. Sic crustallum friat, as they say.

If there's any problem, it's a product of our own desire for something spectacular and the amplification of that desire by excitement-hungry media and the burghers of astronomy-land, who dubbed ISON the "Comet of the Century" and started marketing. Well, that's only natural, but it's hard to remain calm and skeptical in the face of all that hype. We're all too credulous. We all want it to be spectacular: a great comet ranks with a total solar eclipse and a meteor storm (think Leonids 2002) and maybe the Transit of Venus as the top astronomy experience you can have.

Predicting the brightness of an Oort Cloud comet a year in advance is like trying to predict the stock price of Facebook a year in advance. You know they're not going out of business, so the stock will be worth something (and the comet will be there), but you don't know whether they are going to score a major revenue coup and the price will skyrocket with a 10:1 split (Comet of the Century) or whether they are going to be put to shame by a new social media site and lose a lot of ad revenue (hello, ISON).

The only concern I have is that some people on the borderline of being astronomy enthusiasts will opt for some existential disappointment and will retreat from further interest, because their expectations for an orgastic* experience were not fulfilled. Our position has to be to defend the realities of astronomy (which are plenty wonderful on their own) and why it's worthwhile to wait for a great comet, and marvel at its beauty when it finally does come around.

Larry

*orgastic, as used by F. Scott Fitzgerald at the end of "The Great Gatsby":

"Gatsby believed in the green light, the orgastic future that year by year recedes before us. It eluded us then, but that's no matter-tomorrow we will run faster, stretch out our arms farther.... And one fine morning--
So we beat on, boats against the current, borne back ceaselessly into the past."


Post Extras: Print Post   Remind Me!   Notify Moderator  
Octans
member


Reged: 08/13/09

Loc: Santa Barbara, CA, USA
Re: Comet ISON - Cooked well done? new [Re: Vronscki]
      #6219208 - 11/27/13 12:24 PM

Quote:

Have you guys seen in the C3 images when the sun burst hits Ison?
From 12:54 to now, it started to glow a lot more and now has that horizontal glare.
Is this observation correct?




That's what I'm seeing too -- looks like a short bloom spike: http://198.118.248.97/data/realtime/c3/512/ (bloom spikes in C3 are horizontal as you can see from the Lovejoy images)

The latest Beacon image from STEREO also shows some blooming which suggests it's getting brighter: http://stereo-ssc.nascom.nasa.gov/browse/2013/11/27/ahead/hi1/1024/20131127_1...


Post Extras: Print Post   Remind Me!   Notify Moderator  
Tom and Beth
Post Laureate


Reged: 01/08/07

Loc: Tucson, AZ
Re: Comet ISON - Cooked well done? new [Re: Octans]
      #6219245 - 11/27/13 12:40 PM

Quote:

Quote:

Have you guys seen in the C3 images when the sun burst hits Ison?
From 12:54 to now, it started to glow a lot more and now has that horizontal glare.
Is this observation correct?




That's what I'm seeing too -- looks like a short bloom spike: http://198.118.248.97/data/realtime/c3/512/ (bloom spikes in C3 are horizontal as you can see from the Lovejoy images)

The latest Beacon image from STEREO also shows some blooming which suggests it's getting brighter: http://stereo-ssc.nascom.nasa.gov/browse/2013/11/27/ahead/hi1/1024/20131127_1...




Space Weather's report indicates the CME shown in the second link likely will not strike ISON, and so the brightening is encouraging.


Post Extras: Print Post   Remind Me!   Notify Moderator  
BrooksObs
professor emeritus


Reged: 12/08/12

Re: Comet ISON - Cooked well done? new [Re: Tom and Beth]
      #6219257 - 11/27/13 12:46 PM

Ye Ha! The 15:07UT LASCO C3 image indicates that ISON is just beginning to show "bloom spikes" from the camera's detector starting to saturate. This would imply a brightness of perhaps +0.5 and that the comet was continuing to brighten up.

BrooksObs

Edited by BrooksObs (11/27/13 12:47 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Dave M
Postmaster
*****

Reged: 08/03/04

Loc: Ohio
Re: Comet ISON - Cooked well done? new [Re: BrooksObs]
      #6219294 - 11/27/13 01:01 PM

It does look good. C3 Image Link

Post Extras: Print Post   Remind Me!   Notify Moderator  
SteveRosenow
professor emeritus
*****

Reged: 07/10/12

Loc: Shelton, Washington
Re: Comet ISON - Cooked well done? new [Re: Dave M]
      #6219308 - 11/27/13 01:04 PM

Anyone else noticing that the SOHO website keeps going down?

I am having issues on my end, especially on the 1024-resolution latest refresh!


Post Extras: Print Post   Remind Me!   Notify Moderator  
timtrice
sage


Reged: 08/01/13

Loc: Katy, TX
Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6219344 - 11/27/13 01:16 PM

Yes.

Edited to conform with the Cloudy Nights terms of service:

"No posts of a political nature."

Edited by star drop (11/28/13 06:54 AM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
boandpokey
sage
*****

Reged: 07/25/13

Loc: Auburndale, Fl
Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6219347 - 11/27/13 01:17 PM

website will be overloaded soon

Post Extras: Print Post   Remind Me!   Notify Moderator  
Octans
member


Reged: 08/13/09

Loc: Santa Barbara, CA, USA
Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6219348 - 11/27/13 01:18 PM

Yeah, I'm guessing it's under heavy traffic. See if this mirror works:

http://198.118.248.97/data/realtime/c3/1024/latest.html

(the "normal" sohowww site is 198.118.248.108)


Post Extras: Print Post   Remind Me!   Notify Moderator  
SteveRosenow
professor emeritus
*****

Reged: 07/10/12

Loc: Shelton, Washington
Re: Comet ISON - Cooked well done? new [Re: Octans]
      #6219361 - 11/27/13 01:23 PM

Quote:

Yeah, I'm guessing it's under heavy traffic. See if this mirror works:

http://198.118.248.97/data/realtime/c3/1024/latest.html

(the "normal" sohowww site is 198.118.248.108)




Mirror works! Thank you!


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | >> (show all)


Extra information
1 registered and 4 anonymous users are browsing this forum.

Moderator:  Rich (RLTYS), star drop, dr.who 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 16327

Jump to

CN Forums Home




Cloudy Nights Sponsor: Astronomics