[SKRIVA] Jorden får två solar när Betelgeuse blir supernova
- From: Ahrvid Engholm <ahrvid@xxxxxxxxxxx>
- To: <skriva@xxxxxxxxxxxxx>
- Date: Sat, 22 Jan 2011 15:15:36 +0100
Inom någon miljon år kan den röda jättestjärnan Betelgeuse bli supernova. Och
under en kort tid blir det som om jorden fått två solar:
http://io9.com/5738542/earth-may-soon-have-a-second-sun
"The red supergiant star Betelgeuse is getting ready to go supernova, and when
it does Earth will have a front-row seat. The explosion will be so bright that
Earth will briefly seem to have two suns in the sky.
The star is located in the Orion constellation, about 640 light-years away from
Earth. It's one of the brightest and biggest stars in our galactic neighborhood
- if you dropped it in our Solar System, it would extend all the way out to
Jupiter, leaving Earth completely engulfed. In stellar terms, it's predicted to
explode in the very near future. Of course, the conversion from stellar to
human terms is pretty extreme, as Betelgeuse is predicted to explode anytime in
the next million years.
But still, whether the explosion occurs in 2011 or 1002011 (give or take 640
years for the light to reach Earth), it's going to make for one of the most
unforgettable light shows in our planet's history. For a few weeks, the
supernova will be so bright that there will appear to be two stars in the sky,
and night be will indistinguishable from day for much of that time. So don't
count on getting a lot of sleep when Betelgeuse explodes, because the only
sensible thing for the world to do will be to throw a weeks-long global
supernova party."
--Ahrvid
--
ahrvid@xxxxxxxxxxx / Gå med i SKRIVA - för författande, sf, fantasy, kultur
(skriva-request@xxxxxxxxxxxxx, subj: subscribe) YXSKAFTBUD, GE VÅR WCZONMÖ
IQ-HJÄLP! (DN NoN 00.02.07)
Om Ahrvids novellsamling Mord på månen: http://www.zenzat.se/zzfaktasi.html C
Fuglesang: "stor förnöjelse...jättebra historier i mycket sannolik
framtidsmiljö"! -----
SKRIVA - sf, fantasy och skräck * Äldsta svenska skrivarlistan
grundad 1997 * Info http://www.skriva.bravewriting.com eller skriva-
request@xxxxxxxxxxxxx för listkommandon (ex subject: subscribe).
Other related posts:
- » [SKRIVA] Jorden får två solar när Betelgeuse blir supernova - Ahrvid Engholm