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Yesterday a nova was discovered in Cas. It’s currently a mag 8 binocular object. More details here: https://britastro.org/node/25814

I managed to image the nova last night so here's a blink with all of my original data from 05/12/2020 and last night, 28/03/2021. Nova V1405 in Cassiopeia. My previous image, taken 12/05/2020 was

I had a decent clear spell tonight and took advantage of it to observe the Nova again. First in the frac again and then the 10” dob. In the dob it was great to see M52 clearly in the same FOV. Had a c

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Saw it again in the 12” dob this evening. Still seems to be maintaining brightness quite well.

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Decided to use the Heritage 130p as a quick grab and go. Using a 9x50 finder scope went straight to M52. Used a SvBony 10 to 30 zoom and located the Nova. Estimated at around mag 8. Seemed the same as 2 nights ago.

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Tonight I observed the nova with 11x70 binoculars. It looked around the same brightness that it has for the past few nights.

With the more transparent skies this evening M52 showed quite nicely with the binoculars.

 

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A couple more shots from me. The first shows the brightness difference to SAO610 a bit better, and the second catches M52.

 

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3066A864-0592-4E90-A830-92C2B10EAAED.jpeg

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Had another look tonight. It seems to be holding it's brightness. I thought it looked a tad dimmer at first but not entirely sure.

Cheers

Ian

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My first look for a few days. 30 x 30 sec stacked in ASTAP.

Photometry (such as it is in my hands) gives a magnitude of 8.42, holding up nicely. I was surprised to see it still outshining it's neighbour.

 

2094451739_NOVA_CAS2021-04-0930x30LEQMODHEQ56ZWOASI178MC_stacked.thumb.jpg.3a35b7a8f61335cb7715bd1e68c837ed.jpg

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Just had another look at this nova. Still looking around magnitude 8.0 or thereabouts.

 

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9 minutes ago, John said:

Just had another look at this nova. Still looking around magnitude 8.0 or thereabouts.

 

Had it about that last night John. Not checked tonight yet.

This one is certainly hanging around 👍🏻

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Some very nice conditions tonight, got the nova in the 15x bins again and see it between mag 7.8 HD220770 and mag 8.1 HD220138. 

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1 hour ago, laudropb said:

..... involving a white dwarf and a close companion.....

Sounds like a dodgy headline from tomorrows papers to me :grin:

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I managed an image through the Genesis tonight at x16. Quite nice to see it in a wider context, similar to a binocular field really, 5 degrees.

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10 hours ago, laudropb said:

Do we know if this a classic nova Jeremy involving a white dwarf and a close companion main sequence star ?

I assume so, but not seen any reports. White dwarf primary, certainly but not seen spectral classification of the 2ndary 

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10 minutes ago, JeremyS said:

I assume so, but not seen any reports. White dwarf primary, certainly but not seen spectral classification of the 2ndary 

My simple understanding of the way that novae work is that the white dwarf is accreting matter from the secondary star so I wonder if that, over time, changes the spectral classification of the latter ?

I also wonder if this one will result in a nova remnant ?

I'm probably over-simplifying a complex process :rolleyes2:

 

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1 hour ago, John said:

My simple understanding of the way that novae work is that the white dwarf is accreting matter from the secondary star so I wonder if that, over time, changes the spectral classification of the latter ?

I also wonder if this one will result in a nova remnant ?

I'm probably over-simplifying a complex process :rolleyes2:

 

During the eruption the spectrum will be dominated by the hot accretion disc rather than the stars. Need a quiescent spectrum to get the stars. even that can be tricky 

The nova eruption certainly blows off gas into space so there will be a remnant shell. Might take a while to become large enough to be visible on large pro scopes, if at all

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