In the second half of 2024, a nova explosion in the star system called T Coronae Borealis, or T CrB, will once again be visible to people on Earth. T CrB will appear 1,500 times brighter than usual, but it won’t be as spectacular as the event in 1054.
19 Comments
expatriado@lemmy.world · 19 pts · 1y
never heard of these recurrent novae, got to look it up, sounds counterintuitive
Rhaedas@fedia.io · 31 pts · 1y
You're thinking supernova, which happens only once. Novae were seen first as stars that would flare up, becoming a "new" star if it was too faint before to see. They are always a binary system, with the recurrent ones being a companion star that passes by periodically to deposit more material to flare up.
expatriado@lemmy.world · 9 pts · 1y
ah, i see, the word super makes all the difference here
Rhaedas@fedia.io · 15 pts · 1y
There's also a hypernova. :D
expatriado@lemmy.world · 3 pts · 1y
🤯
NegativeInf@lemmy.world · 11 pts · 1y
And kilonova, which is when two neutron stars collide!
Drunemeton@lemmy.world · 9 pts · 1y
From: https://science.howstuffworks.com/innovation/science-questions/gravitational-waves-the-chirps-that-prove-einstein-was-right.htm
What is kilonova explained?
A kilonova is an explosion resulting from the collision of two neutron stars, or a neutron star and a black hole. These events are extremely energetic, and can release as much energy in a few seconds as our Sun will produce in its entire 10-billion-year lifetime.
flicker@lemmy.world · 2 pts · 1y
Thank you for posting the bit and the link.
Holy fuck that's so much energy!
dessimbelackis@lemmy.world · 3 pts · 1y
Like when Bowie and Frankie made Under Pressure?
Swedneck@discuss.tchncs.de · 2 pts · 1y
terra nova as well, which is when you boot up civ V
nul@programming.dev · 1 pts · 1y
Heavily featured in this video: https://www.youtube.com/watch?v=MwMwzGIt5ek
TheBat@lemmy.world · 2 pts · 1y
henfredemars@infosec.pub · 11 pts · 1y
Without reading the article, I imagine it’s a binary system where a white dwarf is siphoning gases from a star. When it reaches critical mass, it goes thermonuclear.
Tilgare@lemmy.world · 4 pts · 1y
You are exactly right - how could this have possibly been a guess, lol.
illi@lemm.ee · 3 pts · 1y
I saw a video on this and this is pretty much how I remember it explained.
thenextguy@lemmy.world · 4 pts · 1y
How is it counterintuitive? Gas builds up, goes boom, repeat.
catloaf@lemm.ee · 13 pts · 1y
Usually stars don't build up gas. This one is part of a binary system, though, so like the other comment says, it's siphoning matter from the other one.
expatriado@lemmy.world · 6 pts · 1y
the counterintuitive part came for the standard candle supernovae already coming from binary systems and not being recurring, but somehow the recurrent ones manages to blow up with 1/100 of the energy, i am just learning this
exocortex@discuss.tchncs.de · 14 pts · 1y
Ahh the event in 1054... Yeah that event was a banger!
dream_weasel@sh.itjust.works · 13 pts · 1y
That was a very long article for so little "where and when to look".