Nova in Cassiopeia

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SkyBrowser
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Re: Nova in Cassiopeia

Post by SkyBrowser »

RMSteele wrote: Fri Nov 05, 2021 12:54 pm No relatives in Texas I trust?
No siree, nope, y'all have a nice day now.
jeff.stevens
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Re: Nova in Cassiopeia

Post by jeff.stevens »

A brief observation during a break in the cloud cover. Seeing was good, but I'd class the the sky transparency as only fair - some slight haze around.

I'm estimating magnitude +8.8 at 20:15UT on 7 Nov 2021.

Best wishes, Jeff.
RMSteele
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Re: Nova in Cassiopeia

Post by RMSteele »

2021 November 23, 1805 UT, 90mm refractor x41, the nova has faded significantly. I estimate it at magnitude 9.2. Bob
Anyone else making estimates?
jeff.stevens
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Re: Nova in Cassiopeia

Post by jeff.stevens »

I haven't as of yet, Bob, but at the next clear sky I will have a go. I wonder if it is just going to continue to fade now.

Best wishes, Jeff.
jeff.stevens
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Re: Nova in Cassiopeia

Post by jeff.stevens »

My doggie (Bella) rudely interrupted my beauty sleep at about 3:15am, to alert me of clear skies :wink:. So, after a brief gathering of my wits, I had an attempt at observing and photographing Nova Cas v1405.

I'm estimating at magnitude +9.0, using a hand-held 25x100 binocular. Sky transparency was good, and the seeing was good. Considering the waning Moon was prominent, it was quite a good observing session. I spent about 45 minutes (a little chilly) having a mooch around. Oh my, M42 looked really beautiful and ghostly in the 25x100. That alone was worth getting up for, along with an equally glorious view of the diamond studded Pleiades open cluster.

Anyway, here's my pic, with a zoomed in inset. It was a 10 second exposure, F5.6, 53mm lens at ISO 3200 (Canon EOS 1100D).

Best wishes, Jeff.
Attachments
2021-11-25-04h00mUT-nova-cas-v1405.jpg
2021-11-25-04h00mUT-nova-cas-v1405.jpg (207.9 KiB) Viewed 14 times
2021-11-25-04h00mUT-nova-cas-v1405-inset.jpg
2021-11-25-04h00mUT-nova-cas-v1405-inset.jpg (43.75 KiB) Viewed 14 times
RMSteele
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Re: Nova in Cassiopeia

Post by RMSteele »

Jeff, brilliant observation and images. From a careful look at your image and nearby comparison stars the nova's magnitude does indeed look like 9.0. (the star right next to the nova is visual magnitude 9.12). I am making an assumption here that the camera is rendering 9th mag star images that are close to visual values. Very impressive result here - you should copy this to Robin and Matthew Barrett; it's well worth publishing in the magazine. Kind thoughts, Bob
jeff.stevens
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Re: Nova in Cassiopeia

Post by jeff.stevens »

Ahhh, cheers Bob, that’s very kind of you to say. I think the camera rendering compares well to what my eye saw.

Yes, I will indeed submit the observation, that’s a good idea.

Best wishes, Jeff.
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