Bigger, more massive, blue white hot and only 8.6 LY distant.

What if it goes supernova ?

On 10/06/2021 11:53 pm, casagiannoni@optimum.net wrote:
> Bigger, more massive, blue white hot and only 8.6 LY distant.
>
> What if it goes supernova ?
>

We have 8.6 yrs to enjoy life?

On 6/10/2021 6:53 AM, casagiannoni@optimum.net wrote:
> Bigger, more massive, blue white hot and only 8.6 LY distant.
>
> What if it goes supernova ?
>
Go to Quora to read plenty of opinions.

What would happen if Sirius went supernova? - Quorahttps://www.quora.com
› What-would-happen-if-Sirius-w...
Nov 19, 2017 — An hour of that would be enough to boil the surface of
the oceans. Anything organic on land will be turned to ash in a matter
of seconds. Any bacterial life that​ ...
15 answers

832 votes:
If Sirius B were to acquire enough mass to go supernova, it would spell
doom for our planet, ...
What would happen if Sirius exploded? - Quora
17 answers
Feb 21, 2017
How long will it be until Sirius A turns supernova ...
13 answers
Apr 11, 2018
Would the Earth be wiped out if the star Sirius, only ...
3 answers
Oct 23, 2017
What is the possibility of Sirius B going supernova ...
16 answers
Aug 31, 2017
More results from www.quora.com

casagiannoni@optimum.net wrote:
> Bigger, more massive, blue white hot and only 8.6 LY distant.
>
> What if it goes supernova ?

You have 1 billion years to pack. Start now. :)

Meanwhile, just run-of-the-mill cosmic rays have huge impacts on
planet dirt. I'm processing some cloud data for a project
and both cloud height and cloud amount (percent of sky covered)
is highly dependent on cosmic rays detected around the world.

There is even some indication cosmic particles modulate earthquake
activity e.g. affecting the average depth of major quakes.

On 2021-06-10, casagiannoni@optimum.net <casagiannoni@optimum.net> wrote:
> Bigger, more massive, blue white hot and only 8.6 LY distant.
>
> What if it goes supernova ?

Sirius A isn't massive enough to go supernova on its own, much less to
produce any kind of gamma-ray burst, and A and B are too far apart.

Whisper wrote on 11/6/21 12:59 am:
> On 10/06/2021 11:53 pm, casagiannoni@optimum.net wrote:
>> Bigger, more massive, blue white hot and only 8.6 LY distant.
>>
>> What if it goes supernova ?
>>
>
>
> We have 8.6 yrs to enjoy life?
>
>
Except that if it went supernova, we wouldn't know about it for 8.6
years ..... so we would be wiped out in 10 .... 9 .... 8 .... 7
..........!! ;-P
--
Daniel

>
>Sirius A isn't massive enough to go supernova on its own, much less to
>produce any kind of gamma-ray burst, and A and B are too far apart.

Reference ? ...

On Wednesday, June 16, 2021 at 6:46:13 AM UTC-7, casagi...@optimum.net wrote:
> >
> >Sirius A isn't massive enough to go supernova on its own, much less to
> >produce any kind of gamma-ray burst, and A and B are too far apart.

> Reference ? ...

Child's play...

http://www.madsci.org/posts/archives/2000-08/965942239.As.r.html

Are you incapable of looking this up for yourself? This is freshman astronomy 101...

http://www.madsci.org/posts/archives/2000-08/965942239.As.r.html

https://astronomy.com/magazine/ask-astro/2020/05/when-sirius-a-expands-into-a-red-giant-could-white-dwarf-sirius-b-go-supernova

Sirius is simply not big enough to become a supernova...

>
>Are you incapable of looking this up for yourself? This is freshman astronomy 101...
>

Didn't see the point since you must have had it handy, having made the
claim ...

PS - thanks for good info.

On 6/10/2021 9:53 AM, casagiannoni@optimum.net wrote:

> Bigger, more massive, blue white hot and only 8.6 LY distant.
>
> What if it goes supernova ?
>

There aren't any stars large and close enough
to threaten us if they went off.

Maybe our own sun is more likely to cause
trouble than distant stars.

Solar storm of 2012
From Wikipedia,

The coronal mass ejection, as photographed by STEREO.

The solar storm of 2012 was an unusually large and strong
coronal mass ejection (CME) event that occurred on July 23
that year. It missed the Earth with a margin of approximately
nine days, as the equator of the Sun rotates around its own
axis with a period of about 25 days.[1]

The region that produced the outburst was thus not pointed
directly towards the Earth at that time.
https://en.wikipedia.org/wiki/Solar_storm_of_2012

Fortunately for us~

--
https://twitter.com/Non_Linear1

On 6/11/2021 5:47 AM, Porcospino wrote:
> On 2021-06-10, casagiannoni@optimum.net <casagiannoni@optimum.net> wrote:
>> Bigger, more massive, blue white hot and only 8.6 LY distant.
>>
>> What if it goes supernova ?
>
> Sirius A isn't massive enough to go supernova on its own, much less to
> produce any kind of gamma-ray burst, and A and B are too far apart.
>

Vega isn't quite large enough for a type 2 supernova
but it's more than twice as large as the sun
and only 25 light years away, but expected to live
maybe another half billion years.

But it sure is pretty, here's a pic I took of Vega
last month.

Vega (12 second exposure)
https://www.flickr.com/photos/192712870@N07/51215293283/in/dateposted-public/

--
https://twitter.com/Non_Linear1