Alert Notice 752: Rare Outburst of RS Oph

American Association of Variable Star Observers (AAVSO)
Mon, 08/09/2021 - 18:26

Congratulations to AAVSO observers Alexandre Amorim (AAX), Eddy Muyllaert (MUY), and Keith Geary (GKI) for catching the current outburst of RS Oph all independently and within an hour of each other!

To read more, see Alert Notice #752:

There are threads for this object under the following forums:

- Time Sensitive Alerts:
- Novae:
- Cataclysmic Variables:
- Spectroscopy:

Please subscribe to these threads if you are observing this nova so you can be updated as to its behavior and any observing campaigns on it. Join in the discussion or ask questions there!

Even better, get out and observe it!

Clear Skies,

American Association of Variable Star Observers (AAVSO)
RS Oph high res observations

Hi folks,

Where should we be observing with high res equipment? H-alpha, H-beta, Na etc. I am already doing a project in Ha so everything is currently set there. Is there enough of an Ha signal in this type M star to see much?



British Astronomical Association, Variable Star Section (BAA-VSS)
spectroscopy in 2006

There are  some examples of what was seen spectroscopically by amateurs during the 2006 outburst  by Christian Buil  here at both high and low resolution

and mine at very low with just a Star Analyser

There are already spectra appearing on the ARAS forum for example a hi res H alpha by Eric Bryssinck  which looks very similar to the early one by CB in 2006.

I expect the coverage will be much more extensive than it was 15 years ago

The most remarkable phenomenon for me in 2006 was the highly ionised emission lines produced as the shock crashed into the surrounding circumsystem material. Very different from a classical nova spectrum.