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Explosions in the Sky: Supernovae Imminent?
SpaceRef ^
| 09/30/2004
| NASA
Posted on 10/01/2004 12:59:05 PM PDT by cogitator
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To: MarkL
That means that the Missouri Dept of Transportation will have to finish I-70 in the dark...Sooner than that... first it swells to red supergiant size and incinerates everything out to the orbit of Mars.
To: cogitator
To: RadioAstronomer
They cannot. In fact, X-rays are EM just at a higher frequency than visible EM (light). So why are they waiting for a light show to start (if it does). I was going to ask the same question. If X and Gamma rays have already hit the instruments, wouldn't the explosion already be showing in the visible wavelengths?
83
posted on
10/01/2004 2:18:52 PM PDT
by
hattend
(I'm on the Mark Steyn Ping List! I'm somebody!)
To: cogitator
Clearly extra-galactic. You never know. Those sneaky aliens probably have some kind of exotic after-burner on their ships to redshift their exhaust. That way, no one will suspect how close they are.
84
posted on
10/01/2004 2:19:52 PM PDT
by
PatrickHenry
(I'm PatrickHenry and I approve this message.)
To: cogitator
That means that the Missouri Dept of Transportation will have to finish I-70 in the dark...Sooner than that... first it swells to red supergiant size and incinerates everything out to the orbit of Mars.
Oh sure... Now the unions will want to take off early for that one!
Mark
85
posted on
10/01/2004 2:20:15 PM PDT
by
MarkL
(Dude!!! You're farting fire!!!!)
To: RockinRight
It's my understanding that the full moon is essentially 7% of the brightness of the sun in a clear sky as viewed from the earth. The issue here is relative brightness to the average human spectator, not the intrinsic brightness of the stellar body.
But in any case, your Madsci.org suggests that a supernova'ed Betegeuse would be about the same brightness as the moon, not ten times greater. That seems more likely than 10x the brightness of the moon. That's all I was saying...
86
posted on
10/01/2004 2:21:36 PM PDT
by
the herald
(i still like pudding)
To: SunkenCiv
87
posted on
10/01/2004 2:24:59 PM PDT
by
FairOpinion
(FIGHT TERRORISM! VOTE BUSH/CHENEY 2004.)
To: redgolum
Will they be visible? Based on data from other gamma bursts at the NASA website, it would seem that these are not extra-gallactic events. If not, then any succeeding supernovae should be extremely visible...perhaps to the unaided eye.
88
posted on
10/01/2004 2:25:30 PM PDT
by
Bloody Sam Roberts
(Which Star Trek Capt. would you want for President? Picard or Kirk? In wartime, the choice is easy.)
To: RockinRight
It [Betelgeuse] would be visible at night for several years.
Wow. All these years I thought it was already visible at night. At least if it's not cloudy.
89
posted on
10/01/2004 2:29:56 PM PDT
by
Gorjus
To: FairOpinion; blam; Ernest_at_the_Beach; SunkenCiv; 24Karet; 2Jedismom; 4ConservativeJustices; ...
Thanks, F.O. A catastrophism post to the GGG list is in the offing... Please FREEPMAIL me if you want on, off, or alter the "Gods, Graves, Glyphs" PING list --
Archaeology/Anthropology/Ancient Cultures/Artifacts/Antiquities, etc.
The GGG Digest -- Gods, Graves, Glyphs (alpha order)
90
posted on
10/01/2004 2:38:14 PM PDT
by
SunkenCiv
("All I have seen teaches me trust the Creator for all I have not seen." -- Emerson)
To: My2Cents
Three different star ships are using nuclear propulsion to decelerate from near light speed. Not only that, they are all headed in our direction.
;^)
91
posted on
10/01/2004 2:43:54 PM PDT
by
BenLurkin
(We have low inflation and and low unemployment.)
To: All
Arrrg! Meetings. Will be back on later. Sigh!
To: the herald
The moon is much less than 7% as bright as the sun. I think it's 0.7%.
But, you're right. The MadSci article proves me wrong. It'd be pretty darn bright any way you look at it!
93
posted on
10/01/2004 2:57:53 PM PDT
by
RockinRight
(W stands for whoop-a**!!!)
To: My2Cents
After a Trio of Explosions Scientists say Supernova is Imminent....
....And we have only one StarShip in the quadrant!
94
posted on
10/01/2004 3:00:36 PM PDT
by
JOE6PAK
(The Pajamaheddin. The gadflies of the truth, the guerrillas of the ugly fact.)
To: PatrickHenry
Ricker told SPACE.com the stars will likely go supernova 10 to 20 days after the initial bursts that were spotted. I hope he's right. That would be so cool to see - a supernova! It'd be a once in a lifetime event - if I live to be a thousand.
95
posted on
10/01/2004 3:01:19 PM PDT
by
JenB
To: JOE6PAK
That one can handle it.
96
posted on
10/01/2004 3:01:35 PM PDT
by
BenLurkin
(We have low inflation and and low unemployment.)
To: JenB
Three supernovas apparently.
97
posted on
10/01/2004 3:02:37 PM PDT
by
BenLurkin
(We have low inflation and and low unemployment.)
To: Bloody Sam Roberts
Having a strange bright splash of light in the sky each night just might freak out any people who are easily susceptible to superstitious musings.
98
posted on
10/01/2004 3:04:59 PM PDT
by
BenLurkin
(We have low inflation and and low unemployment.)
To: BenLurkin
Yeah, that part is curious. It seems so unlikely that three would become visible at the same time. Like hitting the lottery three times in a row, at least.
99
posted on
10/01/2004 3:05:12 PM PDT
by
JenB
To: My2Cents
Shouldn't that be:
Don't Panic
In big, friendly letters, and all that.
100
posted on
10/01/2004 3:06:40 PM PDT
by
Junior
(FABRICATI DIEM, PVNC)
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