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Many thanks to everyone who replied.
Certainly worth having a look at the Egerton exhibition if anyone is visiting Tatton Park. Maurice Egerton was a fascinating character, interested in so many different things. I asked the curator if she had seen anything about an interest in astronomy or telescopes during her PhD research, but she has not come across anything.Certainly a place to visit for a grand day out.
Atel 14838 from a team at Kyoto U report low resolution of RS Oph showing “Fe II, O I, and prominent Balmer lines. All of them listed here have a P Cygni profile. The velocity of the Hβ emission line is ∼ 2600 km/s. The profile and velocity indicate that this outburst is indeed a nova eruption, as is expected.”
Our earlier work suspectEd shallow eclipses. Can we confirm and does the depth vary with outburst status (outburst vs quiescence)?
Looking at the light curve Stewart, there is not much difference. In any case, the objective of the project is to measure the time and duration of each outburst, rather than its precise mag. Thanks for your observation. If you are getting decent signal to noise ratio then stick with the V filter -after all, you are using a decent aperture scope. But no filter allows better SNR, so is often preferable with small telescopes.
Still worth following this nova in her while the field is well placed. Fading the mag 15 now, though, but perhaps leveling off:
I used EverBuild external frame sealant, Grant.
I applied both to the outside wall and inside. I overpainted the latter with the polymeric concrete sealant paint base I used for the rest of the floor.
Yes, definitely a bit brighter last night, Nick: ~0.25 mag brighter on Jul 20 in CV for me compared to 24 h earlier.
After a drop in brightness in the first 24 h, the nova has been at ~mag 13 the last 3 nights. Not much of a light curve so far as we are in the early days of this eruption. Further observations are encouraged.
Good to see the data rolling in for this star. Many thanks to all observers. It’s been faint for a few days: I’ve have it at 16.6 yo 16.7 the last couple of nights.
Now the nights are getting a bit longer, some time-series photometry runs become possible.
Christian Knigge (U of Southampton) notes:
“I just wanted to flag up that we’re
currently still trying to follow the outburst of V627 Peg — one of the
closest WZ Sge stars that erupts only every 5 years (at best) and has
just recently gone off. I’m involved in a campaign to get X-ray,
ultraviolet and radio coverage of the outburst, alongside, of course,
optical.The thing is really bright in outburst — V ~ 8-10 or so — so it’s
great for high-cadence photometry or even spectroscopy, for anybody who
has a spectrograph. For our campaign, any long sequences would be
useful. Ideally we’d have long runs covering the full outburst in 2
filters, say B and V.In terms of spectra, time-resolved spectroscopy would be awesome — I’m
particularly interested in the transition from a pure absorption line
spectrum near plateau to a pure emission line spectrum in quiescence.
Where and how fast does this happen, and does it correlate with other
things happening at other wavelengths.Thanks!
Christian “Further confirmation as nova: https://www.astronomerstelegram.org/?read=14793
