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MessiToM
scholastic sledgehammer
*****

Reged: 12/21/09

Loc: Huntingdon PA
Re: C/2012 S1 ISON new [Re: Savio Fong]
      #6127803 - 10/09/13 08:19 PM

Good work ^

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Savio Fong
Vendor (Galaxy Scientific)


Reged: 10/05/09

Loc: Hong Kong
Re: C/2012 S1 ISON new [Re: MessiToM]
      #6128250 - 10/10/13 01:11 AM Attachment (43 downloads)

Thank!

see color version made 6hrs ago this morning. Same setup above, RGB filter. Taken from my robotic observatory in Tibet,

5x120s per channel

Higher resolution version


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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]
      #6128251 - 10/10/13 01:12 AM Attachment (33 downloads)

see 100% crop here,

Edited by Savio Fong (10/10/13 01:14 AM)


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CygnuS
sage


Reged: 07/11/11

Loc: The Great Rift
Re: C/2012 S1 ISON new [Re: Savio Fong]
      #6128434 - 10/10/13 06:58 AM

I sure enjoy all these ISON images. They're the first thing I check out whenever I log in. Thanks for posting them. I'm only a visual observer so I sure appreciate them.

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John Wunderlin
Vendor - Spike-a Focusing Mask
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Reged: 10/01/04

Loc: Mineral Point, Wi
Re: C/2012 S1 ISON new [Re: CygnuS]
      #6128454 - 10/10/13 07:22 AM

Great shots Savio! I just got some more data myself. I also saw it visually for the first time in my 10" scope this morning. Just a faint ghost right now. Couldn't see the nucleus and maybe just a hint of elongation. Very, very faint visually.

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Savio Fong
Vendor (Galaxy Scientific)


Reged: 10/05/09

Loc: Hong Kong
Re: C/2012 S1 ISON new [Re: John Wunderlin]
      #6128685 - 10/10/13 09:59 AM

Quote:

Great shots Savio! I just got some more data myself. I also saw it visually for the first time in my 10" scope this morning. Just a faint ghost right now. Couldn't see the nucleus and maybe just a hint of elongation. Very, very faint visually.




Thanks John for your nice comment. Actually I have a 16" Dob in my observatory in Tibet, at such altitude and with such sky quality in Tibet, the view will be great if I am there. But I am not sure whether I will go that time, depending how it goes on.


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Rich (RLTYS)Moderator
Postmaster
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Reged: 12/18/04

Loc: New York (Long Island)
Re: C/2012 S1 ISON new [Re: Savio Fong]
      #6128976 - 10/10/13 12:23 PM Attachment (46 downloads)

On the morning of Oct 8, I finally was able to image Comet Ison with the Slooh Remote Observatories T1 telescope.

Rich (RLTYS)


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TechPan6415
sage
*****

Reged: 07/29/12

Loc: Aspen, Co
Re: C/2012 S1 ISON new [Re: Rich (RLTYS)]
      #6129293 - 10/10/13 03:02 PM

I look forward to it getting bigger and brighter, then I can take a real photograph of it with something Earthbound like the shot of Hale-Bopp in my avatar, I made $,$$$ off of that shot.

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Tonk
Postmaster
*****

Reged: 08/19/04

Loc: Leeds, UK, 54N
Re: C/2012 S1 ISON new [Re: TechPan6415]
      #6129405 - 10/10/13 04:10 PM

Quote:

Sorry to hear about your neighbors' trees




I can't blame any neighbour - its a wild wood on a hill that is just in the way. My observatory is at the bottom of the hill!

Quote:

What magnification is the above photo? (This really should have been included. If a photo is worth posting, it deserves a caption).




Magnification here is totally meaningless. You could ask for the field of view (quoted in degrees) as that has meaning for prime focus photography


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Savio Fong
Vendor (Galaxy Scientific)


Reged: 10/05/09

Loc: Hong Kong
Re: C/2012 S1 ISON new [Re: Rich (RLTYS)]
      #6130161 - 10/10/13 11:27 PM

Quote:

On the morning of Oct 8, I finally was able to image Comet Ison with the Slooh Remote Observatories T1 telescope.

Rich (RLTYS)




very nice shot!


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hiro
Pooh-Bah


Reged: 07/17/07

Loc: Tokyo
Re: C/2012 S1 ISON new [Re: Savio Fong]
      #6130299 - 10/11/13 01:19 AM

Hi all,

I tried imaging of the comet with autoguiding at the center of condensation of the coma October 9, 2013UTC.
Exposure length was expanded up to 15 minutes with no trace of trailing of the rapidly drifting comet.



Data and original are here.
http://www.flickr.com/photos/hiroc/10190898716/

Screen shot of a frame of PHD guiding while guiding and the corresponding area on planetarium software in the lower half.



Data and original are here.
http://www.flickr.com/photos/hiroc/10190850625/


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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: Savio Fong]
      #6130300 - 10/11/13 01:19 AM Attachment (38 downloads)

Here's my data from this morning. 57x60 seconds.

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kcolter
sage
*****

Reged: 06/04/03

Loc: Missouri, USA
Re: C/2012 S1 ISON new [Re: John Wunderlin]
      #6130536 - 10/11/13 08:24 AM

I also saw it visually for the first time in my 10" scope this morning. Just a faint ghost right now. Couldn't see the nucleus and maybe just a hint of elongation. Very, very faint visually.




Strong work, John, on the visual observation. I have tried three mornings now and cannot see it with an 11 inch Starmaster. Your observation gives me the incentive to keep trying. I own larger aperture but haven't been able to try the larger scopes on the comet yet.


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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: kcolter]
      #6130867 - 10/11/13 11:41 AM

Quote:

Strong work, John, on the visual observation.




Thanks! The only way I was able to find it visually was by going back and forth between my observatory and my dob doing careful star hopping, comparing the star patterns from my DSLR and my eyepiece view. This is definitely the faintest comet I've ever observed through my Dob. Not much to see just yet.


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canukLX90
professor emeritus


Reged: 12/25/08

Loc: B.C. Canada
Re: C/2012 S1 ISON new [Re: John Wunderlin]
      #6131188 - 10/11/13 01:43 PM

Great images and observations. Thanks to all for posting.
I didn't have to bring out the chainsaw to take my first
image of the comet but it was touch and go at 28 degrees
elevation

PJ


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kcolter
sage
*****

Reged: 06/04/03

Loc: Missouri, USA
Re: C/2012 S1 ISON new [Re: John Wunderlin]
      #6134551 - 10/13/13 09:22 AM

I looked more closely at the finder chart before rolling my 20 inch out to a spot with better eastern horizon and was able to see Ison this morning. Dim even in the 20 inch. It will be a pleasant surprise if this comet blossoms significantly next month.

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CygnuS
sage


Reged: 07/11/11

Loc: The Great Rift
Re: C/2012 S1 ISON new [Re: kcolter]
      #6134828 - 10/13/13 11:42 AM

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?

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Savio Fong
Vendor (Galaxy Scientific)


Reged: 10/05/09

Loc: Hong Kong
Re: C/2012 S1 ISON new [Re: CygnuS]
      #6135712 - 10/13/13 07:45 PM

taken yesterday morning my local time. The comet is definitely brigther than 10th magnitude, may be brighter than 9th. And the tail is over 16min long.

Exposure is 20x120s, the image is stacked against the comet nuclear, so the limiting magnitude of a 4" refractor in 120s exposure in my site is ~19th magnitude, and that part of sky is affected by zodaic light, and Mars is in the same CCD field at the moment, hence not the perfect condition.

Image

b/w inverted image

Magnitude comparison

web page

Edited by Savio Fong (10/13/13 07:54 PM)


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Dean Norris
Carpal Tunnel
*****

Reged: 11/05/08

Loc: Santa Cruz, Ca
Re: C/2012 S1 ISON new [Re: CygnuS]
      #6135745 - 10/13/13 08:08 PM

I observed Comet ISON this morning (10/13/12) through my 10" f/6 newt. The sky was dark and transparency was decent I was able to view NGC 2024 the Flame Nebulae with direct vision, right before finding the comet. The seeing was marginal leaning towards poor since Jupiter was showing some detail but very fuzzy. I found the comet using a 14mm 100* ep at 110x magnification. It was not easy to find. Around 5:15am local time ( 13:15 UT) after 20 minutes of looking I saw a dim object which for me resembled a flat amorphous galaxy. No nucleus or coma was seen on the comet. It was between 2 stars which I estimated at 10.5 and 10th magnitude. The comet was seen with direct vision but averted vision helped some. The comet was closer to the 10.5 star. I also observed it at 171x but the 110x view was best. I observed the comet for a half hour and stopped when I noticed the sky lightening.

Last week I tried to find it with no avail. So I'm assuming that it's brighten some in a week.

Good seeing and clear skies everyone. May this comet be one that we will long remember.

Dean


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canukLX90
professor emeritus


Reged: 12/25/08

Loc: B.C. Canada
Re: C/2012 S1 ISON new [Re: Savio Fong]
      #6136266 - 10/14/13 03:31 AM Attachment (15 downloads)

Great images. Thanks for posting.
Comet is not visible until twilight starts at my location.
Difficult to get a good image in morning twilight as tail
in my image is only about 5 arc minutes.

PJ


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