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Possible outburst or Nova at V0437 CEP ? at 10 V mag Can anyone with more focal length take a look at it?

Bernhard
Affiliation
Bundesdeutsche Arbeitsgemeinschaft fur Veranderliche Sterne e.V.(Germany) (BAV)
Fri, 05/08/2020 - 09:52

Hi yesterdays night, i was observing SU CEP with my skywatcher 102 / 500 mm achromat refraktor

Looking for other variables in my FOV i saw that there is also V0437 CEP. (Type: LB Spec K5)

https://www.aavso.org/apps/vsp/chart/?fov=18.5&scale=F&star=v0437+CEP&o…

There is sitting another bulb of light right onto V0437 CEP!  RA 21 49 20.99  DEC + 56 33 32.9

There is no star at the VSP search chart, or in stellarium 0.20.1 And with only 500mm focal lengt of my small refractor, this could not be a resolution artefact.

Is this an outburst? or a Nova? Even a Supernova? With Muniwin i measured around 10 mag vis. (TG) For V437 CEP i measured 9.33 mag vis (TG)

What are the next steps to verify this. This is my first: "Other bulb of photons-ligth next to a star."

Can anyone with more focal length take a look at it? To get a higher resolution and distuinguish the two lights.

kindly Bernhard

 

 

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v0437 CEP_mixed view muniwin.PNG599.96 KB
v0437 CEP_Stellarium.PNG40.4 KB
fov_30.PNG11.68 KB
V0437 CEP.PNG929.07 KB
PYG
Affiliation
British Astronomical Association, Variable Star Section (BAA-VSS)
Fri, 05/08/2020 - 10:04
V437 Cep

If you plot a smaller field of view (say 10 arc minutes) and use the DSS chart option, you will see two stars and not one as shown on your 18.5' computer plotted chart.

I would always use the DSS chart option when comparing to an image.

Gary

PYG
Affiliation
British Astronomical Association, Variable Star Section (BAA-VSS)
Fri, 05/08/2020 - 10:51
VSP

Hi Bernhard,

As good as VSP is (and it is brilliant) there will always be stellar omissions at many magnitude ranges.  This is why if there is a query, it's always best to check with the DSS chart to see what's there.   I often use the DSS 20 or 30 minutes charts for visual work too, and always for checking CCD fields.

Gary