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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?

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

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&or...

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

 

 

PYG
PYG's picture
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

Bernhard
Bernhard's picture
Hi Gary,

Hi Gary,

https://www.aavso.org/apps/vsp/chart/?fov=7.5&scale=G&star=v0437+cep&ori...

do you mean the star marked with the red arrow?

But i think it is this one listed in stellarium?

Bernhard
Bernhard's picture
DSS Option

Ahh ok i found the DSS option!

I did not know about this.

https://www.aavso.org/apps/vsp/chart/?fov=7.5&scale=G&star=v0437+cep&ori...

 

Next time i will look there first (-:

false alarm...

 

(But this is leading to the qestion how to distinguish V437 CEP from the other, if it 's not shown in VSP? )

PYG
PYG's picture
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

Bernhard
Bernhard's picture
Thank you Gary,

Thank you Gary,

today i've learned another thing (-:

wbea

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