Tim L
Carpal Tunnel
Reged: 12/17/08
Loc: Missouri
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Re: Type Ia SN in Messier 101 ?
[Re: blb]
#4800027 - 09/10/11 02:13 PM
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Hi Raynalf,
Welcome to Cloudy Nights 
I agree with Buddy--use good charts, and make sure the binoculars are steady. If you don't have a mount for them, at least use a fencepost or something to steady them from shaking.
Happy hunting 
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Matt2003
Post Laureate
Reged: 04/22/10
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Re: Type Ia SN in Messier 101 ?
[Re: blb]
#4800600 - 09/10/11 08:07 PM
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Well, in a few days we'll have a window at least, just after dusk, to catch the SN and (hopefully though not likely here)M.101. (Unless I take up my Co-workers offer of using the farm site. Seriously considering that one!).
Just 3-5 more nights. Hopefully it will still be easy. at 9.9 it has to be by far the brightest this year.
Clear skies,
Matt
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star drop
Snowed In
Reged: 02/02/08
Loc: Snow Plop, WNY
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Re: Type Ia SN in Messier 101 ?
[Re: Matt2003]
#4800781 - 09/10/11 10:08 PM
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Tonight and last night we have a hole in the clouds. The problem is that the hole stays around the moon for some inexplicable reason.
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Patricko
Carpal Tunnel
Reged: 01/30/07
Loc: USA
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Re: Type Ia SN in Messier 101 ?
[Re: star drop]
#4800902 - 09/10/11 11:19 PM
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WOW!!!!!!!,
Was just out with the 20x60mm Pentax PCP WP IIs, the sky condition were awful. Mostly cloudy, ~20-25mph winds, full Moon, and NELM ~2.7 magnitudes. I mounted the 60mm binoculars on the Vixen AZ3 and aimed toward Mizar. Light clouds were covering this binary but it was split with space in-between. Moving up the star chain to M101 I could NOT see ANY of the galaxy; however, I did see the two 8th and 9th mag stars that form a triangle with M101. It took slight averted vision with the light cloud cover but SN2011fe was seen!!!!!!!!!! WOW.
It is definitely fainter than the near 9th magnitude field star as that star was seen with direct vision. Conditions were so bad I can only guess but think it is now near ~9.7 magnitudes. Knowing where to look helped out a bunch but I'm still in shock to have detected it under such horrible conditions. After going in to verify with Stellarium the clouds had already increased in thickness so it cut my session short but I'm pleased.
Clear skies,
Patrick
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Carol L
Reged: 07/05/04
Loc: Tomahawk, WI 45N//89W
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Re: Type Ia SN in Messier 101 ?
[Re: Patricko]
#4801010 - 09/11/11 01:01 AM
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Caught the supernova tonight with the 120ST (43x) through a veil of cirrus clouds.
The galaxy wasn't visible at all, but SN 2011fe was easily seen. 
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Raynalf
newbie
Reged: 09/10/11
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Re: Type Ia SN in Messier 101 ?
[Re: Carol L]
#4801287 - 09/11/11 08:25 AM
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Thanks to Buddy and Tim for warm welcome and good advice!
However, the sky turned out to be so cloudy I could barely see the stars. Gotta try once more this night, I guess. Fingers crossed!
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SabiaJD
professor emeritus
Reged: 02/20/05
Loc: Clarks Summit, PA
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Re: Type Ia SN in Messier 101 ?
[Re: Raynalf]
#4802058 - 09/11/11 03:59 PM Attachment (32 downloads)
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Image from last night showing SN2011fe is bright. I tried to find the Galaxy with my friend's 8 inch DOB. No luck, I have not star hopped to this galaxy in a long time. Need more practice in darker sky conditions. Knew that the galaxy would be a wash in the moonlight. The map on the thread would have helped if I had only checked.
Info for the image:
M101 SN2011fe September 11, 2011 1:06 UT
1, 60 seconds with V filter
RC20, Paramount ME, STL1001E
Keystone College Thomas G Cupillari Observatory I17
John D Sabia
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MimaDon
member
Reged: 09/05/10
Loc: Littlerock WA, USA
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Re: Type Ia SN in Messier 101 ?
[Re: Raynalf]
#4802373 - 09/11/11 07:04 PM
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Hi everyone!
I've just got my first pair of binoculars (Pentax 10x50 PCF WP II), could anyone tell me if I stand a slightest chance of seeing the SN with 'em? Light pollution is minimal, as I'm 100 km away from any relatively big sity.
Since you do have a relatively dark sky, latitude - as other posters have indicated - will be the difference.
I'm at about 46N (Western Washington) and saw it clearly in a pair of 15X50 binos a week ago. And it's a little brighter now than it was then. Get out there and give it a try!
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star drop
Snowed In
Reged: 02/02/08
Loc: Snow Plop, WNY
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Re: Type Ia SN in Messier 101 ?
[Re: MimaDon]
#4802776 - 09/11/11 11:01 PM
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No luck here with handheld 10x70 binoculars and some thin clouds with a bit of fog. I did barely make out the faint smudge that is M101 though. The moon was too high and M101 was too low at around 9:30 PM.
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nytecam
Postmaster
Reged: 08/20/05
Loc: London UK
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Re: Type Ia SN in Messier 101 ?
[Re: star drop]
#4803079 - 09/12/11 05:56 AM Attachment (21 downloads)
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SN2011fe holding up well - my shot from Sept10 via 70mm OG under near full moon;)
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nytecam
Postmaster
Reged: 08/20/05
Loc: London UK
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Re: Type Ia SN in Messier 101 ?
[Re: nytecam]
#4803081 - 09/12/11 05:58 AM Attachment (25 downloads)
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SN2011dh in nearby M51 still there for larger scopes 
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Tim L
Carpal Tunnel
Reged: 12/17/08
Loc: Missouri
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Re: Type Ia SN in Messier 101 ?
[Re: nytecam]
#4803339 - 09/12/11 10:00 AM
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Caught it again last night in my 80mm scope, but the full moon meant there was no hint of the galaxy this time.
I was out hunting double stars on the AL list from our back deck, when I noticed the dipper's handle was still visible behind me over the house. I swung around for a quick peek and there it was. As before, higher powers were necessary for my scope to reveal it.
Clear skies
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Matt2003
Post Laureate
Reged: 04/22/10
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Re: Type Ia SN in Messier 101 ?
[Re: Tim L]
#4804415 - 09/12/11 08:16 PM
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I'm going to clean my EPs off tomorrow ( I just found out how many little droplets of sweat have gotten on a couple in this heat. Its a wonder I've seen anything!!)and try just after twilight..
I'm definitely getting hooked on these SN things. How did this happen? Help! LOL
Clear Skies,
Matt
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buddyjesus
Carpal Tunnel
Reged: 07/07/10
Loc: Davison, Michigan
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Re: Type Ia SN in Messier 101 ?
[Re: SabiaJD]
#4804479 - 09/12/11 08:45 PM
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Quote:
Image from last night showing SN2011fe is bright. I tried to find the Galaxy with my friend's 8 inch DOB. No luck, I have not star hopped to this galaxy in a long time. Need more practice in darker sky conditions. Knew that the galaxy would be a wash in the moonlight. The map on the thread would have helped if I had only checked.
Info for the image:
M101 SN2011fe September 11, 2011 1:06 UT
1, 60 seconds with V filter
RC20, Paramount ME, STL1001E
Keystone College Thomas G Cupillari Observatory I17
John D Sabia
That image has some incredible image scale. Awesome detail too!
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sawacs
sage
Reged: 03/15/06
Loc: KOKC Area
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Re: Type Ia SN in Messier 101 ?
[Re: blb]
#4804513 - 09/12/11 09:04 PM
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Thanks for the chart!
I will give it another go this week..
Shawn
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benula
member
Reged: 04/27/11
Loc: Stillwater, MN
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Re: Type Ia SN in Messier 101 ?
[Re: JayinUT]
#4805157 - 09/13/11 09:24 AM
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I finally got out last night to have a look at the sn. With the full moon and the LP of the twin cities it was nothing more than a pretty underwhelming dot (as expected) in my 90mm refractor. The excitement, imo, comes from thinking about what we are looking at!
The logarithm-like graph of the light curve for this sn found http://www.aavso.org/sn-2011fe seems to indicate that we are getting pretty close to the maximum brightness...is this the case? I would love to see this in a couple of weeks during a new moon, how long is this expected to last for? It would be awesome to see even a hint of the galaxy!
-Ben
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RAKing
Postmaster
Reged: 12/28/07
Loc: West of the D.C. Nebula
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Re: Type Ia SN in Messier 101 ?
[Re: benula]
#4805271 - 09/13/11 10:28 AM
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The main problem is M101 is moving closer to the western horizon each night. I'm sure we will be able to catch this for another week or so, but it's starting to get turbulent over there and it might take a bigger scope than I own to catch a hint of the galaxy.
Cheers,
Ron
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Matt2003
Post Laureate
Reged: 04/22/10
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Re: Type Ia SN in Messier 101 ?
[Re: RAKing]
#4806212 - 09/13/11 07:46 PM
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It just occured to me, but that old saying is true here, the Super Nova is actually outshining its home galaxy.
Ok, I know that isn't totally true here, but it sure looks like it, when the SN is very easy but the galaxy is its old elusive self..
Clear Skies,
Matt
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blb
Post Laureate
Reged: 11/25/05
Loc: Piedmont NC
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Re: Type Ia SN in Messier 101 ?
[Re: Matt2003]
#4806323 - 09/13/11 09:09 PM
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Even though M101 has an integrated magnitude of 7.5, the surface brightness of the galaxy is 14.6. That very faint surface brightness is what makes the galaxy so hard to see when it is only approximately 25 degrees above the northwestern horizon. When it is that low in the sky the galaxy is located in the ground haze and your looking through about four times the atmosphere. Is it no wonder that the supernovae is easy and the galaxy is almost nonexistant. So yes the SN outshines the galaxy when it is magnitude 9.9
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Patricko
Carpal Tunnel
Reged: 01/30/07
Loc: USA
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Re: Type Ia SN in Messier 101 ?
[Re: blb]
#4806599 - 09/14/11 12:28 AM
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Got a look at the SN ~8:50pm with 20x60mm binoculars. Even under better conditions I estimate it has faded to magnitude 10. Perhaps it has peaked in brightness? Anyone else have any estimates?
Clear skies,
Patrick
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