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4 votes
1 answer
506 views

Can a Nova occur outside of a binary star system?

With the T Coronae Borealis nova likely to erupt soon, it got me thinking if novas could occur outside of a binary star system. On the wiki page titled Nova: All observed novae involve white dwarfs ...
Shawn Lim's user avatar
  • 385
3 votes
1 answer
768 views

Automated (and hopefully free) systems I can subscribe to sending email or SMS text message when the T Coronae Borealis Nova becomes visible?

My earlier question about predicted potentially observable events Has a gravitational microlensing event ever been predicted? If so, has it been observed? is limited to microlensing. Now I have just ...
uhoh's user avatar
  • 30.7k
4 votes
1 answer
73 views

How much time do I have left to easily spot the recently brightened Recurrent Nova RS Ophiuchi with binoculars and mild light pollution?

Excellent answers to Binocular-friendly star map to find the Recurrent Nova RS Ophiuchi? provide some helpful maps for circa 8° FOV binoculars, but due to spatial and potential meteorological ...
uhoh's user avatar
  • 30.7k