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Savio Fong
Vendor (Galaxy Scientific)


Reged: 10/05/09

Loc: Hong Kong
Re: C/2012 S1 ISON new [Re: canukLX90]
      #6136371 - 10/14/13 07:19 AM

My animation, ~10Mb

http://www.astro.hk/C2012_S1_2013-10-13_UT_2139-2304.gif


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kcolter
sage
*****

Reged: 06/04/03

Loc: Missouri, USA
Re: C/2012 S1 ISON new [Re: CygnuS]
      #6136437 - 10/14/13 08:43 AM

Quote:

kcolter, You mentioned that it is dim in your 10 inch and 20 inch. Your 10 inch report was encouraging but obviousely not so with the 20. I'm going to get my SkyQuest 10 inch Dob out now that it aligning with Mars and Regulus and should be easier to find. What was your magnification and sky conditions when you last saw it with the 10?



Sorry about the confusion. John saw it in his ten inch, I quoted his note and mentioned that I failed three times with my 11 inch. When I saw it in the 20 inch it was quite clear and transparent. I was at my home where the sky is NELM 5.5 or so, not real dark. I had a note from a friend today who lives west of me where it is darker (NELM 6.0 or so), he was unable to see it in a 10inch yesterday. He did get a nice image of it.


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dyslexic nam
Carpal Tunnel
*****

Reged: 01/28/08

Loc: PEI, Canada
Re: C/2012 S1 ISON new [Re: Savio Fong]
      #6137777 - 10/14/13 08:15 PM

Quote:

My animation, ~10Mb

http://www.astro.hk/C2012_S1_2013-10-13_UT_2139-2304.gif




That is excellent - thanks a lot for posting.


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CygnuS
sage


Reged: 07/11/11

Loc: The Great Rift
Re: C/2012 S1 ISON new [Re: dyslexic nam]
      #6138432 - 10/15/13 07:25 AM

I made my first effort to see it with my 10 inch Dob and was unsuccessful. The star chart on page 47 of Astronomy magazine's special edition was very helpful.
Perhaps I shouldn't say I didn't see it. I did make a sketch of a spot where I thought I saw a smudge when jiggling the scope. (averted vision didn't seem to help) Does anybody know which website is best to compare it's location with stars of mag 9-11?


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Tapio
Pooh-Bah


Reged: 09/24/06

Loc: Tampere, Finland
Re: C/2012 S1 ISON new [Re: CygnuS]
      #6138528 - 10/15/13 08:36 AM

Should be visible in 10" scope.
Here's finder chart:
http://www.heavens-above.com/comet.aspx?cid=C%2F2012%20S1&lat=0&lng=0...


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BrooksObs
professor emeritus


Reged: 12/08/12

Re: C/2012 S1 ISON new [Re: Tapio]
      #6138629 - 10/15/13 09:36 AM

Let me point out that for folks who are not regular observers of comets, C/ISON is a decidedly difficult object visually at this time save for those employing really large scopes, or perhaps having access to an observing site with very dark skies. So don't feel bad if you are not seeing it yet.

I would also note that after tomorrow morning ISON will become visually pretty much out of range for just about everyone, regardless of telescope size, for the next 10-12 days as the moon takes over the morning sky. It currently looks like that only during the comet's final fortnight, or so, leading up to perihelion might it become easily seen with binoculars and modest-sized telescopes. You can pretty much forget any hopes of spotting it with the naked eye.

BrooksObs

Edited by BrooksObs (10/15/13 11:42 AM)


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blb
Post Laureate


Reged: 11/25/05

Loc: Piedmont NC
Re: C/2012 S1 ISON new [Re: BrooksObs]
      #6138737 - 10/15/13 10:30 AM

Quote:

...Does anybody know which website is best to compare it's location with stars of mag 9-11?



Try this site http://cometchasing.skyhound.com/


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John Wunderlin
Vendor - Spike-a Focusing Mask
*****

Reged: 10/01/04

Loc: Mineral Point, Wi
Re: C/2012 S1 ISON new [Re: CygnuS]
      #6138765 - 10/15/13 10:51 AM

Quote:

Perhaps I shouldn't say I didn't see it. I did make a sketch of a spot where I thought I saw a smudge when jiggling the scope.




I think you found it. That's about what I saw- just a smudge. If you're not a regular faint galaxy or comet hunter, you'd probably not see this in a 10" scope yet.


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MessiToM
scholastic sledgehammer
*****

Reged: 12/21/09

Loc: Huntingdon PA
Re: C/2012 S1 ISON new [Re: John Wunderlin]
      #6139227 - 10/15/13 02:47 PM

I have been cloud locked for weeks unfortunately. You know as soon as the moon is back in the dawn sky it will be crystal clear.

Never fails


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Savio Fong
Vendor (Galaxy Scientific)


Reged: 10/05/09

Loc: Hong Kong
Re: C/2012 S1 ISON new [Re: MessiToM]
      #6139729 - 10/15/13 08:10 PM

Quote:

I have been cloud locked for weeks unfortunately. You know as soon as the moon is back in the dawn sky it will be crystal clear.

Never fails




yes, that's the same in the other part of the world also, a hurricane attack India so my observatory site in Tibet got raining for 2 days also, which I usually enjoy 90% clear sky rate in this season.


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Mike B.
Carpal Tunnel
*****

Reged: 10/24/05

Loc: Louisiana
Re: C/2012 S1 ISON new [Re: Savio Fong]
      #6140182 - 10/16/13 01:28 AM

My latest image of the comet:


Comet ISON on October 15, 2013, 10:30 UT. 30x120 sec @ ISO 800, TV-85 at F/5.6, modified Canon T3.

I had binos this morning but struck out on seeing all three comets that are presently in the morning skies. Hopefully, that will change soon.


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Tapio
Pooh-Bah


Reged: 09/24/06

Loc: Tampere, Finland
Re: C/2012 S1 ISON new [Re: Mike B.]
      #6140241 - 10/16/13 02:59 AM

Mike, that is nice.
You did two stacks (star align & comet align) and blend them together ?


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canukLX90
professor emeritus


Reged: 12/25/08

Loc: B.C. Canada
Re: C/2012 S1 ISON new [Re: Mike B.]
      #6140248 - 10/16/13 03:26 AM

Very nice image Mike. Looks like you can get subs before
the morning twilight starts. Keep them coming...there is
some discussion that it may break up.

PJ


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Mike B.
Carpal Tunnel
*****

Reged: 10/24/05

Loc: Louisiana
Re: C/2012 S1 ISON new [Re: Tapio]
      #6140321 - 10/16/13 06:11 AM

Quote:

Mike, that is nice.
You did two stacks (star align & comet align) and blend them together ?




Thanks!

Yes, exactly. It is two stacks blended. So, it is really a composite image.


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Mike B.
Carpal Tunnel
*****

Reged: 10/24/05

Loc: Louisiana
Re: C/2012 S1 ISON new [Re: canukLX90]
      #6140328 - 10/16/13 06:26 AM

Quote:

Very nice image Mike. Looks like you can get subs before
the morning twilight starts. Keep them coming...there is
some discussion that it may break up.





Thanks, PJ.

I'm shooting more sub-images as I type this. Unfortunately, clouds came in after only 11 shots, so the results might be meager compared to yesterday's.


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CygnuS
sage


Reged: 07/11/11

Loc: The Great Rift
Re: C/2012 S1 ISON new [Re: Mike B.]
      #6141178 - 10/16/13 03:39 PM

Great image Mike. Thanks for sharing it. It's the best yet.
You're a knight who does things right.
(that's the motto of the kids cartoon "Mike the Knight")


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CygnuS
sage


Reged: 07/11/11

Loc: The Great Rift
Re: C/2012 S1 ISON new [Re: CygnuS]
      #6141971 - 10/16/13 10:27 PM

Hey, I just had a thought. If ISON breaks up and never even gets bright enough to be seen in 8 inch scopes will my special edition of Astronomy magazine become a collectors item just like the newspapers that printed Dewey winning the US presidency? I suspect that 90% of them will be thrown out in disgust and the survivors will be rare as oddities.
I'm not exactly going to plan my retirement on the value of this potential collectors item. Besides, I'm still rooting for the comet to live up to the hype started nearly a year ago. Increasingly it doesn't look like that's going to happen.


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Savio Fong
Vendor (Galaxy Scientific)


Reged: 10/05/09

Loc: Hong Kong
Re: C/2012 S1 ISON new [Re: CygnuS]
      #6142769 - 10/17/13 11:49 AM

Stack of images this morning,

http://www.astrocafe.hk/viewtopic.php?f=16&t=3321&p=23811#p23811

UT 2013-10-16 (21:32 - 23:07)
Exposure 25x120s

Animation of 25 frames here, 14Mb file :
http://www.astro.hk/C2012_S1_Mars_Regulus_L-120S_20131016_UT_2132-2307.gif

the tail is now ~18 arc-minutes long, grow from 16 arc-minutes just 4 days ago.

Taken from my robotics observatory in Tibet.


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Savio Fong
Vendor (Galaxy Scientific)


Reged: 10/05/09

Loc: Hong Kong
Re: C/2012 S1 ISON new [Re: Savio Fong]
      #6142774 - 10/17/13 11:51 AM

and the comet should be about 9th magnitude? See this picture taken this morning, single shot of the above, with the interference from full moon, zodiac light and occasional thin cloud,

http://www.astrocafe.hk/download/file.php?id=9263


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Savio Fong
Vendor (Galaxy Scientific)


Reged: 10/05/09

Loc: Hong Kong
Re: C/2012 S1 ISON new [Re: Savio Fong]
      #6144084 - 10/18/13 01:04 AM

Comet, Mars, Regulus & Zodical Light, taken this morning, from my robotic observatory in Tibet, just 4x120s exposure. Animation of 25 frames will be done shortly afterwards.

http://www.astrocafe.hk/download/file.php?id=9268


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