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August 2019 Supernova Thread

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#1 Redbetter

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Posted 05 August 2019 - 12:06 AM

It is late in this lunar cycle, but there is one promising target that showed up recently on the Bright Supernova page that was not already covered in the prior months' threads.  So I guess it is time to kick off the August thread.  I have not a had a chance to observe this one yet, hopefully I will get one more clear night this cycle:

 

SN 2019krv is associated with NGC 7236 in Pegasus.  It is a type Ia and was measured at 16.4 mag on 7/25.  It is fairly wide away from the galaxy, a somewhat unusual looking E-S0 type that shows disruption stretching out toward the location of the current SN.  It is interacting with its very close neighbor NGC 7237 which has another smaller galaxy adjacent to it labeled 7237c that appears to be about 10% nearer to us than the interacting pair.  The pair of NGC's are listed as Arp 129, K564, and II Zw 172. 

 

There are a number of other much fainter galaxies distributed around the area.  Those are on my target list if conditions are favorable.   


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#2 Redbetter

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Posted 07 August 2019 - 12:20 AM

I tried this one last night with the 20", but was effectively clouded out again.  I still made an attempt through the thin but continuous high level cloud, despite losing a full magnitude naked eye.  The clouds were being illuminated to about 0.3 magnitude brighter than the sky is on even a mediocre night.   Still, peering through the haze I was able to see the three galaxies and spent some time trying to see the SN but did not have any convincing sighting.  I did spot one of the 16g mag galaxies preceding it to the NW but it was just the faintest averted vision splotch.  I searched for a few of the other faint galaxies nearby and with considerable difficulty located four more down to 16g mag.  Wasn't seeing any of them well enough to make a decent description other than detecting them, so I packed up and came home.


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#3 George N

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Posted Yesterday, 10:48 PM

Thanks! I'll give SN2019krv a shot if I get a chance!




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