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N CAS 2020

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#1 KMAO

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Posted 10 August 2020 - 10:44 AM

According to AAVSO reports

Nova Cas 2020

designated as TCP J00114297+6611190

is getting brighter and is now

 about magnitude 11 visual.

Will try to observe tonight....

Makes me wonder how did I miss this.

Best observing

KMA


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#2 Rich5567

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Posted 10 August 2020 - 02:32 PM

Got a chart for this now.

 

Also going to try in the next few hours to get an estimate.

 

Rich.


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#3 Rich5567

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Posted 10 August 2020 - 04:02 PM

Scope is on N CAS 2020 now,

 

Magnitude estimate 11.4. at 21:00 UTC.

 

Late twilight so not truly dark, but plainly visible at 135x.

 

A few high hazy clouds keep passing the FOV, but seeing not bad.

 

Rich.


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#4 KMAO

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Posted 11 August 2020 - 04:43 AM

Rich
Unfortunately I was "clouded out" at a most
inappropriate moment so I can not report
on this object.
However the field I did have seen so far indicates
your visual is perfect.
Best sky
KMA
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#5 Rich5567

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Posted 11 August 2020 - 04:41 PM

Just made another magnitude estimate of Nova Cas 2020.

 

Mag 10.9 at 21:27 UTC. so slightly brighter tonight. Clouds have now moved in so its the end of that short session.

 

Rich.


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#6 ssmith

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Posted 12 August 2020 - 12:57 PM

Photo of N Cas 2020 taken last night.  The seeing wasn't the best due to light cloud.  Magnitude from Astrometrica measurement (green channel) was 11.3

 

Nova_Cas_2020_C9_M10ii_8_11_20_10fr.jpg


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#7 Rich5567

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Posted 12 August 2020 - 04:04 PM

Nice image.waytogo.gif

 

Clouded out tonight, so no viewing the star tonight.

 

You took that pic at 05:08 UTC this morning (my time), I was just getting up for work.lol.gif

 

Rich.



#8 ssmith

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Posted 12 August 2020 - 05:37 PM

Thanks Rich - looks like it may now be on the decline from a peak value of ~ magnitude 10.6.

 

n cass curve.jpg


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#9 KMAO

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Posted 13 August 2020 - 04:13 AM

Number of observers report rather rapid decline.
In less then 24hours my reports are 0.5m visual down.
Good prediction Steve.
Best sky
KMA
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#10 BrooksObs

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Posted 13 August 2020 - 01:37 PM

The nova is so far displaying a highly unusual lightcurve. AAVSO data puts the nova at 12th magnitude as of this morning and the plotted data from the date of discovery to the present shows the rise to maximum was rather slow and the decline after maximum is steeper than was the rise! It will be interesting to follow the lightcurve future development.  

 

BrooksObs


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#11 Jamey L Jenkins

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Posted 13 August 2020 - 05:48 PM

Another observation of Nova Cas 2020 from 8/13/20 @ 0312UT. Still on a decline as said above. My measurement with V filter is 12.165.

Attached Thumbnails

  • NovaCas_20200813_0312UT.jpg
  • NovaCas_AAVSO.jpg

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#12 KMAO

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Posted 15 August 2020 - 04:54 AM

The Nova Cas 2020 continues with remarkable behaviour

and because

of very good sky

I did observe this object four nights straight.

 

August 2020 12.2194 visual 11.6m

                      13.2035 visual  12.1m

                       14.2021 visual. 12.9m

                        15.3479 visual. 12.9m

 

best sky wishes

KMA


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#13 KMAO

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Posted 15 August 2020 - 08:15 AM

Obviously I did miss the maximum.
May be one more brightening ?
KMA

Attached Thumbnails

  • N CAS 2020  kma.png

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#14 KMAO

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Posted 19 August 2020 - 04:04 AM

According to my visual observations

this morning

Nova is brightening rather rapidly

20200819.2375  visual  12.2m

  20200819.3514  visual  11.8m

 

best observing

KMA


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#15 KMAO

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Posted 19 August 2020 - 04:26 AM

N CAS 2020 LCG1

Attached Thumbnails

  • N CAS  2020  latest.png

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#16 Rich5567

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Posted 19 August 2020 - 01:13 PM

My visual estimates show a small brightning.

 

17th August 2020: 12.2mv

18th August 2020: 11.8mv

 

Is it going to peak again?.

 

Clouded out this evening, typical.

 

Rich.


Edited by Rich5567, 19 August 2020 - 01:13 PM.

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#17 KMAO

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Posted 20 August 2020 - 08:34 AM

Sorry about your sky Rich

but you did not miss much.

Brightening is rather slow.....

best wishes for clear sky

KMA


Edited by KMAO, 20 August 2020 - 08:38 AM.

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#18 Rich5567

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Posted 20 August 2020 - 04:22 PM

Just made my latest visual estimate of Nova Cas 2020.

 

I have it at 12.3mv at 21:18 UTC.

 

Cheers,

 

Rich.


Edited by Rich5567, 20 August 2020 - 04:22 PM.


#19 gblasco

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Posted 21 August 2020 - 05:41 PM

Thanks Rich - looks like it may now be on the decline from a peak value of ~ magnitude 10.6.

 

attachicon.gifn cass curve.jpg

How do you obtain this curve captures in jpg? Are they from the AAVSO page, do you have the link?

 

Thank you very much



#20 BrooksObs

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Posted 21 August 2020 - 06:04 PM

It would appear that this secondary brightening is starting to roll over, according to the AAVSO's lightcurve. Such behavior, so quickly coming on the heels of the nova's primary maximum,  is odd and certainly atypical of an Fe nova, as spectra suggests this one is. What could be next?

 

BrooksObs


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#21 Jamey L Jenkins

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Posted 22 August 2020 - 11:34 PM

Here's the AAVSO light curve from a couple days back showing the initial peak and secondary peak with the secondary decline just starting. Also, two images from my last data collection on the night of August 20-21, 2020 in V and B bands. Instrumental magnitudes derived were 11.954 (V) and 13.538 (B).

Attached Thumbnails

  • NovaCas 2020 light curve.jpg
  • Nova Cas_60_V.jpg
  • Nova Cas_300_B.jpg

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#22 KMAO

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Posted 23 August 2020 - 10:19 AM

My last night visual...

 

best sky to all

KMA

Attached Thumbnails

  • NOVA CAS 2020.png


#23 cometchaserde

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Posted 23 August 2020 - 12:31 PM

Hi,

I imaged the nova on August 20.th.

Image at http://www.cometchas...0_20082020.html

 

NOVA-CAS-2020-21082020-120sek-002414.jpg

 

Stefan


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#24 Rich5567

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Posted 23 August 2020 - 01:49 PM

Now thats a nice capture waytogo.gif.

 

Not managed a clear night for the last few days, its quite clear at the moment, and the sun's nearly about to set, so fingers crossed.

 

Although saying that, I think its now just beyond my 8", I can just manage around 13.0mv on a good clear night, and before long it'll be much fainter than that.

 

I'm hoping for another brightning grin.gif.

 

Rich.


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#25 KMAO

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Posted 24 August 2020 - 05:34 AM

Rich
your wish may come true
this morning I reported 11.9m visual

20200824.3542 UTC

best wishes for clear sky
KMA

Attached Thumbnails

  • Nova Cas 2020 b.png

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