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Observing >> Deep Sky Observing

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Dave MitskyModerator
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Re: Supernova in M82 new [Re: schang]
      #6424080 - 03/23/14 02:47 AM

I had a look at SN 2014J again earlier tonight using the ASH 17" f/15 classical Cassegrain at 259x. Averted vision helped in seeing it. SN 2014J was listed at magnitude 12.3 as of March 17th at http://www.rochesterastronomy.org/supernova.html#2014J

Dave Mitsky


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kt4hx
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Re: Supernova in M82 new [Re: Dave Mitsky]
      #6424476 - 03/23/14 11:56 AM

Yeah, Sky Tools 3 also lists it at 12.3. But from what I've seen of people's observations, it seems visually fainter. I would imagine intervening dust in M82, as well as contrast with the brightness of the galaxy itself would account for that.

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Erik Bakker
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Re: Supernova in M82 new [Re: kt4hx]
      #6424896 - 03/23/14 03:38 PM

Quote:

Yeah, Sky Tools 3 also lists it at 12.3. But from what I've seen of people's observations, it seems visually fainter. I would imagine intervening dust in M82, as well as contrast with the brightness of the galaxy itself would account for that.




I could not see even a hint of the SN in M82 lat night in my FS102 at around 60x under less than ideal conditions. Hence I suspect it will be dimmer than Mv 12 but will try again under better conditions to see if it is still within reach of the 4" apo.


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Feidb
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Re: Supernova in M82 new [Re: Erik Bakker]
      #6425576 - 03/23/14 10:56 PM

Looked at it again last night at Spring Mountain Ranch, on the west side of Las Vegas. Looking over the light dome of the city, the supernova was still visible, though it's getting pretty dim now. At first I had to use averted vision to spot the twinkle but once I caught its position, I could zero in on the spot and see it directly, sometimes steadily and sometimes blinking in and out. That was probably not only because of the severe light pollution but also because there was something going on in the sky. A few moments later, I noticed nebulae around some of the brighter stars.

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toddstep
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Re: Supernova in M82 new [Re: Feidb]
      #6425822 - 03/24/14 02:06 AM

It's still there, steady with averted vision at 180x, could not really see it directly. Can't judge the magnitude but seems dimmer then when I observed it on 3/19.

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Bill Barlow
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Re: Supernova in M82 new [Re: toddstep]
      #6425894 - 03/24/14 03:46 AM

I saw it with my C14 this past Wednesday (3/19) from our astro clubs observing site in a yellow zone and it was noticeably fainter than two weeks ago. But I could still see it fairly easily with direct vision.

Bill


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Dave MitskyModerator
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Re: Supernova in M82 new [Re: Bill Barlow]
      #6425896 - 03/24/14 03:49 AM

I observed the supernova again on Sunday night, using the ASH 17" classical Cassegrain at 216 and 259x. SN 2014J was best seen with averted vision.

Dave Mitsky


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Larry F
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Re: Supernova in M82 new [Re: Dave Mitsky]
      #6426600 - 03/24/14 01:40 PM

I had no trouble seeing it with a Mallincam and CPC800 on Saturday night (3/22) at our club's star party (it was a big hit with the crowd). It wasn't visible with an eyepiece with that scope, but our light-pollution situation is pretty dismal for visual sighting of faint objects (we're 40 miles north of Times Square; the measured SQM was 19.85). [That's why I have to cheat a little and use the Mallincam!]

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aatt
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Re: Supernova in M82 new [Re: Larry F]
      #6426825 - 03/24/14 03:54 PM

I was observing with a 15" and although it is still very apparent, it has faded considerably since a week ago.

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Kevdog
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Re: Supernova in M82 new [Re: aatt]
      #6430590 - 03/26/14 03:50 PM

Quote:

I was observing with a 15" and although it is still very apparent, it has faded considerably since a week ago.




Last night with my 18" from an orange zone it was barely detectable, and that was only because I knew where it should be. Definitely doesn't stand out like it did weeks ago.

Darker skies would help I'm sure.


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Dave MitskyModerator
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Re: Supernova in M82 new [Re: Kevdog]
      #6431439 - 03/26/14 11:33 PM

SN 2014J is now listed at magnitude 13.2 (as of 3/25).

Dave Mitsky


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SabiaJD
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Re: Supernova in M82 new [Re: Dave Mitsky]
      #6435295 - 03/28/14 10:42 PM Attachment (11 downloads)

My first visual view of SN 2014J was on March 22, 2014 UT. This was after the CCD camera was removed from the RC20 telescope. Cloudy skies prevent viewin early on.

This image take with a 77m f/6.6 Borg and SBI STi.


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canukLX90
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Re: Supernova in M82 new [Re: SabiaJD]
      #6438116 - 03/30/14 05:18 PM Attachment (10 downloads)

Still keeping tabs on this one as the weather permits.
The attached image taken on 20 March.
20 X 30 seconds @ F2.8 using PowerNewt and QSI632ws.
No calibration/processing other than stacking of the L subs.
Supposed to be clear next couple of days here in PNW and
and will try to get an updated image.

PJ


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JayinUT
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Re: Supernova in M82 new [Re: canukLX90]
      #6438221 - 03/30/14 06:25 PM

I observed it on Friday, March 28th, 2014 and it was still easily visible in my 14". Averted vision would grab it just a tad more but direct vision still worked. It has faded a lot since I last looked and the 13th mag is about right.

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turtle86
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Re: Supernova in M82 new [Re: JayinUT]
      #6439113 - 03/31/14 09:53 AM

My wife and I saw it last night in my 18" with a 10mm Ethos though we were fighting pesky high clouds, and were observing in a brown zone (about mag 5.6-5.9). I could see it with direct vision much of the time and all of the time with averted vision, though it was faint. Just glad we finally got a chance to see it while it was still visible. Might be quite a while before another one like this comes along…

Edited by turtle86 (04/02/14 08:54 PM)


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JimMo
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Re: Supernova in M82 new [Re: turtle86]
      #6439236 - 03/31/14 10:57 AM

I saw it last night, too, in my 14.5" dob. It's faded a lot in one month, where is was really distinct is now just on the edge of directly seeing it. It does pop a bit more with averted vision.

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KidOrion
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Re: Supernova in M82 new [Re: JimMo]
      #6439279 - 03/31/14 11:22 AM

Saw it very intermittently with direct vision 3/30 with a 12.5."

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Dave MitskyModerator
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Re: Supernova in M82 new [Re: KidOrion]
      #6440847 - 04/01/14 04:24 AM

I observed SN 2014J tonight using the ASH 17" f/15 classical Cassegrain at 185, 216, 249, and 462x. The best view was at 249x. I was able to see the supernova intermittently with direct vision and fairly steadily with averted vision at that magnification.

Dave Mitsky


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azure1961p
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Re: Supernova in M82 new [Re: Dave Mitsky]
      #6442567 - 04/01/14 10:30 PM

Thanks for posting David, I wondered where it was visually at this point.

Pete


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galaxyman
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Re: Supernova in M82 new [Re: azure1961p]
      #6443132 - 04/02/14 09:23 AM

Saw it fairly easy last Wednesday (3/26) with my 8" refractor. Was actually comparing views of it using eyepieces Celestron 9mm X-Cel LX, AT 8mm 70WF, and an TV 8mm Delos (200x to 225x).

Best or was easiest in the Delos of course.

Observed it Monday night (3/31) with my 12.5" dob, and it's certainly dimming fast. Also had the 5" reflector and could not see it with that scope.



Karl
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