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A nova in Scutum

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#1 Aquarellia

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Posted 01 July 2018 - 11:17 AM

This morning I did some visual estimation of this "brand" new nova, from +10.5 to +10.8.

It's sexy name is TCP J18292290-1430460

More information in the AAVSO forum here:

 

https://www.aavso.or...03-mag-scutum-0

 

Michel


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#2 AndrewXnn

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Posted 01 July 2018 - 12:41 PM

Wow; it's really great when somebody can say they discovered a nova.

Also, impressive that he was using a Nikon D7100 with a 180mm lens.

 

However, isn't the D7100 somewhat flawed for astrophotography?

According to Wikipedia, it is prone to generating faint stripped patterns when used to strongly amplify dark tones.  Supposedly, the D7200 avoids this.


Edited by AndrewXnn, 01 July 2018 - 12:41 PM.


#3 RobboK

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Posted 01 July 2018 - 08:14 PM

Wow; it's really great when somebody can say they discovered a nova.

Also, impressive that he was using a Nikon D7100 with a 180mm lens.

 

However, isn't the D7100 somewhat flawed for astrophotography?

According to Wikipedia, it is prone to generating faint stripped patterns when used to strongly amplify dark tones.  Supposedly, the D7200 avoids this.

Andrew, it doesn't really matter what you use, Yukio wasn't doing astrophotography, he was looking for a 'new' star.  The only proviso on camera choice is that you need to cover wide fields.  So forget the CCDs, any old DSLR will do!  Congratulations to Yukio on this discovery!

 

Cheers -

 

Rob


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#4 Aquarellia

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Posted 02 July 2018 - 03:38 AM

Hi

 

This morning 2018/07/02 02:17 UTC my visual estimation was +11.2/+11.3, but we never know, maybe a surprise will follow.

I did a sketch of the field, it's here in the sketching forum : https://www.cloudyni...nova-in-scutum/

Clear sky to you all

Michel


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#5 robin_astro

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Posted 02 July 2018 - 07:33 AM

Not only was this possible nova discovered by an amateur, it was another one also confirmed to be a nova spectroscopically by amateurs 

http://www.astronome...org/?read=11802

http://www.spectro-a....php?f=5&t=2056

 

Robin


Edited by robin_astro, 02 July 2018 - 07:34 AM.

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#6 hcf

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Posted 07 July 2018 - 05:35 PM

Here is a crop of the nova (5 min sub) I took last night.

 

Crop and Zoom: 5 min Sub of Nova Scuti 2018 TCP J18292290-1430460

 

I recently added DIY RA guiding to an entry level manual mount (ES Exos Nano EQ) and was trying pushing exposure on a Meade 80/400 achromatic refractor.

 

There is a lot of CA on the brighter stars, and some even on the fainter stars. Given the CA, is it possible to run photometry tools to get a reasonably accurate (better than visual) esitmation of the magnitude of the nova on the RAW sub?

 

 


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#7 OJS

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Posted 08 July 2018 - 11:31 AM

I tried creating a finder chart/comparison mags. for this one at AAVSO, but only get "error". Tried N SCT 2018, and the TCP J18....., but no luck. Any suggestions?



#8 hcf

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Posted 08 July 2018 - 12:52 PM

I tried creating a finder chart/comparison mags. for this one at AAVSO, but only get "error". Tried N SCT 2018, and the TCP J18....., but no luck. Any suggestions?

https://www.aavso.org/apps/vsp/

 

Either of the two names should work. But make sure you select an item in the "choose a predefined chart scale" menu.



#9 OJS

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Posted 08 July 2018 - 01:29 PM

Yep, tried both initially and chose "B" chart. Did it again just now and it worked. Thanks.



#10 BrooksObs

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Posted 08 July 2018 - 01:54 PM

What I found to be rather striking concerning Nova SCT 2018 is that it is situated a mere 1-degree from last year's highly interesting Nova SCT 2017 (V612 SCT) !  I recall a few times when active nova were visible in the same binocular FOV, but I think that this is the very first time in my long variable star observing career that two could be seen simultaneously (admittedly with some difficulty because V612 has become rather faint) in the same low power telescopic field! I had a look at both last evening at the conclusion scheduled observing program..

 

BrooksObs


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#11 hcf

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Posted 09 July 2018 - 09:39 PM

What I found to be rather striking concerning Nova SCT 2018 is that it is situated a mere 1-degree from last year's highly interesting Nova SCT 2017 (V612 SCT) !  I recall a few times when active nova were visible in the same binocular FOV, but I think that this is the very first time in my long variable star observing career that two could be seen simultaneously (admittedly with some difficulty because V612 has become rather faint) in the same low power telescopic field! I had a look at both last evening at the conclusion scheduled observing program..

 

BrooksObs

I went back to my wide field sub and was able to find V612 SCT (ASASSN-17hx). I had followed its ups and downs through October of last year.  Did not realize it was still around. smile.gif I did a new crop to include both.

 

Novae TCP J18292290-1430460 and V612 SCT  in the same frame

 

Thanks BrooksObs for bringing it up.


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#12 Artom

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Posted 10 July 2018 - 02:01 PM

N Sct 2018
2018 Jul 3.85 UT: m=11.3 ...15-cm L (115x) ...Artyom Novichonok (Simeiz observatory)
2018 Jul 4.91 UT: m=11.2 ...15-cm L (115x) ...Artyom Novichonok (Simeiz observatory)

2018 Jul 5.92 UT: m=11.3 Vis ...15-cm L (115x) ...Artyom Novichonok (Simeiz observatory)
2018 Jul 6.99 UT: m=11.3 Vis ...15-cm L (115x) ...Artyom Novichonok (Simeiz observatory)

2018 Jul 7.95 UT: m=11.4 Vis ...15-cm L (115x) ...Artyom Novichonok (Simeiz observatory)


Edited by Artom, 10 July 2018 - 02:03 PM.

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#13 cometchaserde

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Posted 14 July 2018 - 12:58 AM

Hi,

I took an image from the Nova on July 8th.

 

NOVA-SCUTUM-2018-08072018.jpg

 

 

http://www.cometchas...cutum-2018.html


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