#1  
Old 15-11-2013, 04:50 AM
glenc's Avatar
glenc (Glen)
star-hopper

glenc is offline
 
Join Date: Jun 2005
Location: Terranora
Posts: 4,380
ISON outburst

Comet Lovejoy was larger and fainter than Comet ISON this morning in my 16" scope.
They both have faint tails about 30' long.
ISON looked like 47 Tuc but seemed to be brighter than the GC.
Both comets are easy objects in a 50mm finder.
I also saw the shadow of Callisto on Jupiter this morning.

More ISON info at http://www.mattastro.com/ison/
Nov 14, 12.2 UT: Comet is definitely in "outburst"! It should be naked eye visible NOW! http://brucegary.net/ISON/
Mag and Diam http://www.icq.eps.harvard.edu/CometMags.html#2012S1

Last edited by glenc; 15-11-2013 at 07:21 AM.
Reply With Quote
  #2  
Old 15-11-2013, 06:12 AM
glenc's Avatar
glenc (Glen)
star-hopper

glenc is offline
 
Join Date: Jun 2005
Location: Terranora
Posts: 4,380
Comet ISON has an outburst!

SpaceWeather.com is reporting today (November 14, 2013) that Comet ISON brightened substantially last night (November 13, 2013) and is it now nearing the threshold of visibility.
http://earthsky.org/space/comet-ison-has-an-outburst

Apparently, Comet ISON has surged in brightness by approximately 2 magnitudes in little more than 24 hours. If the trend continues, it could be a faint but easy naked-eye object by the end of the week.
http://spaceweather.com/
Reply With Quote
  #3  
Old 15-11-2013, 06:34 AM
ourkind's Avatar
ourkind (Carlos)
There is no substitute

ourkind is offline
 
Join Date: Jul 2012
Location: Sydney
Posts: 1,964
Cool thanks for the updates! Hopefully these clear skies will endure!!
Reply With Quote
  #4  
Old 16-11-2013, 02:52 AM
Suzy's Avatar
Suzy
Searching for Travolta...

Suzy is offline
 
Join Date: Jan 2010
Location: Brisbane, Australia.
Posts: 3,700
Thanks for the report Glen .

Some are saying they've seen it's visible now naked eye from a dark site. And yep, an easy catch in binos. It's good to get a comparison with Lovejoy.

The skies have finally cleared here after a week of storms. I think I have some nice big sucker holes to work with so I'll be taking a drive down the road to a flat horizon in about an hour an half (nearly 2am here, yikes, I should be napping lol).
Reply With Quote
  #5  
Old 16-11-2013, 04:43 AM
pmrid's Avatar
pmrid (Peter)
Ageing badly.

pmrid is offline
 
Join Date: May 2008
Location: Cloudy, light-polluted Bribie Is.
Posts: 3,759
Quote:
Originally Posted by Suzy View Post
Thanks for the report Glen .

Some are saying they've seen it's visible now naked eye from a dark site. And yep, an easy catch in binos. It's good to get a comparison with Lovejoy.

The skies have finally cleared here after a week of storms. I think I have some nice big sucker holes to work with so I'll be taking a drive down the road to a flat horizon in about an hour an half (nearly 2am here, yikes, I should be napping lol).
Hope you spotted it Suzy. I just went out (3.30 and again at 4) without success. It's only about 10-12 degrees up at the moment and ISON is on the edge of the morning mist and general eastern-sky gunge. I'll try again on Monday morning when the comet and Spica should both be in the same FOV of my 10x50s at about 4 a.m..


Peter

Last edited by pmrid; 16-11-2013 at 05:09 AM.
Reply With Quote
  #6  
Old 16-11-2013, 09:45 AM
glenc's Avatar
glenc (Glen)
star-hopper

glenc is offline
 
Join Date: Jun 2005
Location: Terranora
Posts: 4,380
"November 15: ISON's awakening continues. This morning observers are estimating it at 5th magnitude. It's a popsicle: with a round, sharp-edged, bright green head and a long, narrow, dim tail."
http://www.skyandtelescope.com/commu...193909261.html

Images http://www.skyandtelescope.com/commu...228217711.html
Reply With Quote
  #7  
Old 16-11-2013, 04:34 PM
astroron's Avatar
astroron (Ron)
Supernova Searcher

astroron is offline
 
Join Date: Mar 2005
Location: Cambroon Queensland Australia
Posts: 9,326
Quote:
Originally Posted by pmrid View Post
Hope you spotted it Suzy. I just went out (3.30 and again at 4) without success. It's only about 10-12 degrees up at the moment and ISON is on the edge of the morning mist and general eastern-sky gunge. I'll try again on Monday morning when the comet and Spica should both be in the same FOV of my 10x50s at about 4 a.m..


Peter
I was only about 10 kms from you Peter and saw nothing as the mist and Gunge rolled across the hills in the east of Somerset Dam.
Completely fogged out and drove back to Kilcoy in a pea supper.
Cheers
Reply With Quote
  #8  
Old 16-11-2013, 04:37 PM
Suzy's Avatar
Suzy
Searching for Travolta...

Suzy is offline
 
Join Date: Jan 2010
Location: Brisbane, Australia.
Posts: 3,700
Thanks Glen.
Terry puts it approx. mag 5 now too.

Peter, oh yes, I did see it in my 10x60 binos- albeit for no more than 30 seconds before it got consumed by cloud. Tom Harradine, Terry Lovejoy and I were all looking thru the same sucker hole at same time it seems .
I want to get more viewing this morning, so here's hoping. That was such a tease grrrr!

I hope you get to see it this morning too Peter.

Exciting times- Look what just came out this morning from Damian Peach in the U.K. Crickey and mega *eyepop* just look at all those tails and detail!



Click image for larger version

Name:	Comet ISON by Damian Peach 15-11-13.jpg
Views:	54
Size:	72.1 KB
ID:	151800

It's just like those ancient drawings of broom comets isn't it!
Reply With Quote
  #9  
Old 17-11-2013, 04:45 AM
glenc's Avatar
glenc (Glen)
star-hopper

glenc is offline
 
Join Date: Jun 2005
Location: Terranora
Posts: 4,380
This morning Comet ISON is about mag 6. I compared it to two out of focus mag 5.6 and 6.3 stars using 20x80 binoculars.
The moonlight makes it seem fainter than two days ago, maybe it is.

COMET C/2012 S1 (ISON) Total-magnitude and coma-diameter estimates (visual unless otherwise noted): 2013
Nov. 14.52, 5.7, 2' (Carl Hergenrother, Tucson, AZ, U.S.A., 10x50 binoculars);
Nov. 14.41, 5.4, 5' (John Bortle, Stormville, NY, 15x70 binoculars);
http://www.icq.eps.harvard.edu/CometMags.html#2012S1
Reply With Quote
  #10  
Old 17-11-2013, 11:30 AM
gary
Registered User

gary is offline
 
Join Date: Apr 2005
Location: Mt. Kuring-Gai
Posts: 5,999
Thanks for the reports Glen.
Reply With Quote
  #11  
Old 17-11-2013, 12:06 PM
tonybarry's Avatar
tonybarry (Tony)
Registered User

tonybarry is offline
 
Join Date: Aug 2007
Location: Penrith, Sydney
Posts: 558
This I want to see ... now if some kind person can converse with Higher Authority and get them to move the clouds ...

Regards,
Tony Barry
Reply With Quote
  #12  
Old 20-11-2013, 11:44 PM
icytailmark (Mark)
Registered User

icytailmark is offline
 
Join Date: Aug 2009
Location: sydney australia
Posts: 832
is it possible is see the comet with the naked eye just before sunrise?
Reply With Quote
  #13  
Old 21-11-2013, 01:29 AM
glenc's Avatar
glenc (Glen)
star-hopper

glenc is offline
 
Join Date: Jun 2005
Location: Terranora
Posts: 4,380
Quote:
Originally Posted by icytailmark View Post
is it possible is see the comet with the naked eye just before sunrise?
No
Reply With Quote
  #14  
Old 21-11-2013, 02:12 AM
Geoff Ring
SophieDog

Geoff Ring is offline
 
Join Date: Jan 2008
Location: Perth, Western Australia
Posts: 3
Viewing ISON from Perth

Assuming comet ISON continues to brighten will it be possible to see it with the naked eye from Perth. When would be the best time to look, and near what stars? Thank you.
Reply With Quote
  #15  
Old 21-11-2013, 02:56 AM
noeyedeer (Matt)
Registered User

noeyedeer is offline
 
Join Date: Dec 2012
Location: gold coast
Posts: 553
Quote:
Originally Posted by Geoff Ring View Post
Assuming comet ISON continues to brighten will it be possible to see it with the naked eye from Perth. When would be the best time to look, and near what stars? Thank you.
hi Geoff
it would have to brighten considerably to be seen naked eye, especially at it's altitude and with twilight. better grab a set of binos or a scope. I've given up with the weather lately though tonight is clear I might stay up and see if the 12x50s can spot it.

at 430 it sits here from Perth .. probably from 330 I would be hunting for it as it rises ... but with aid from binoculars or a scope.

good luck!

matt

ps I don't know if Perth is daylight saving time or not so that was gmt +8
Attached Thumbnails
Click for full-size image (Screenshot_2013-11-21-01-49-53.png)
93.0 KB50 views

Last edited by noeyedeer; 21-11-2013 at 03:14 AM.
Reply With Quote
  #16  
Old 21-11-2013, 05:14 AM
noeyedeer (Matt)
Registered User

noeyedeer is offline
 
Join Date: Dec 2012
Location: gold coast
Posts: 553
I tried looking just then to no avail. Spica was visable, just, there's a street light in that direction so I had no chance to see ISON and gave up. if only I could use the balcony.

least I had a squiz at mars. looking forward to pics that will come. hopefully a massive outburst will happen before it disappears... which is doubtful

matt
Reply With Quote
  #17  
Old 22-11-2013, 01:41 AM
Geoff Ring
SophieDog

Geoff Ring is offline
 
Join Date: Jan 2008
Location: Perth, Western Australia
Posts: 3
ISON from Perth?

at 430 it sits here from Perth .. probably from 330 I would be hunting for it as it rises ... but with aid from binoculars or a scope.

good luck!

matt

ps I don't know if Perth is daylight saving time or not so that was gmt +8[/QUOTE]


Thanks Matt! Fingers Crossed for ISON. GMT +8 is correct. No Daylight Saving here. The cows have the vote :-)
Reply With Quote
  #18  
Old 22-11-2013, 07:31 PM
Suzy's Avatar
Suzy
Searching for Travolta...

Suzy is offline
 
Join Date: Jan 2010
Location: Brisbane, Australia.
Posts: 3,700
It's had another outburst. It went from around mag 5 last weekend to now reports at mag 3.7 to high 3's.

It was an easy catch on the 21st November in my binos observing it right under a street light, thru light pollution, with the big moon out and in twilight . No kidding!
I've done a comprehensive observing report here:
http://www.iceinspace.com.au/forum/s...45#post1035745


Matt: In moonlight and twilight, I doubt very much if ISON will be naked eye- even in high 3's mag. It's very close to the sun right now so it basically rides alongside twilight time. Try for 3.30am just before the sky starts to brighten too much, from a dark site, and maybe, but I wouldn't count on it I don't think. The only reports I've seen have been "maybe they thought they saw something but wouldn't put money on it" responses.
I help to admin a comet group on facebook, if anyone wants to join in the group, send me a pm.

Last edited by Suzy; 22-11-2013 at 07:43 PM.
Reply With Quote
  #19  
Old 23-11-2013, 06:51 PM
glenc's Avatar
glenc (Glen)
star-hopper

glenc is offline
 
Join Date: Jun 2005
Location: Terranora
Posts: 4,380
Thanks Suzy

Anticipated STEREO observations of Comet ISON
http://stereo-ssc.nascom.nasa.gov/comet_ison/
Reply With Quote
  #20  
Old 23-11-2013, 11:32 PM
Suzy's Avatar
Suzy
Searching for Travolta...

Suzy is offline
 
Join Date: Jan 2010
Location: Brisbane, Australia.
Posts: 3,700
Glen, check out the latest movie from STEREO-A showing both comets. It's beyond awesome!
I've just popped it on a thread here:
http://www.iceinspace.com.au/forum/s...99#post1035999
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 04:35 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement