Comments on: Eta Vs. Peony: Which Star Will Go Supernova First? http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/ Space and astronomy news Sun, 8 Nov 2009 08:15:54 -0600 http://wordpress.org/?v=2.8.5 hourly 1 By: alicecullen http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-54856 alicecullen Fri, 20 Feb 2009 21:14:35 +0000 http://www.universetoday.com/?p=15552#comment-54856 twilight rules twilight rules

]]> By: Leonard Los http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-54779 Leonard Los Fri, 20 Feb 2009 07:50:18 +0000 http://www.universetoday.com/?p=15552#comment-54779 One Peony, One Schpee One Peony, One Schpee

]]> By: pocholo http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-54771 pocholo Fri, 20 Feb 2009 06:02:57 +0000 http://www.universetoday.com/?p=15552#comment-54771 how would you even now when how would you even now when

]]> By: JLSmith http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26728 JLSmith Tue, 22 Jul 2008 21:55:02 +0000 http://www.universetoday.com/?p=15552#comment-26728 What about the Pistol Star and LBV 1806-20? Where do they fit in? What about the Pistol Star and LBV 1806-20? Where do they fit in?

]]> By: Jon Hanford http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26276 Jon Hanford Thu, 17 Jul 2008 13:47:28 +0000 http://www.universetoday.com/?p=15552#comment-26276 The star mentioned in this article is designated WR102ka and is indeed located in Sagittarius. See arXiv:0807.2476 article for info & images of this stellar heavyweight, especially Fig. 17 for Spitzer image of the Peony Nebula. The star mentioned in this article is designated WR102ka and is indeed located in Sagittarius. See arXiv:0807.2476 article for info & images of this stellar heavyweight, especially Fig. 17 for Spitzer image of the Peony Nebula.

]]> By: Carnifex http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26178 Carnifex Wed, 16 Jul 2008 18:47:42 +0000 http://www.universetoday.com/?p=15552#comment-26178 Sagittarius, I assume, since the article says the star is towards the center of Milky Way. Sagittarius, I assume, since the article says the star is towards the center of Milky Way.

]]> By: marcellus http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26159 marcellus Wed, 16 Jul 2008 15:53:20 +0000 http://www.universetoday.com/?p=15552#comment-26159 What constellation is Peony in? What constellation is Peony in?

]]> By: Mitch22 http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26151 Mitch22 Wed, 16 Jul 2008 13:46:49 +0000 http://www.universetoday.com/?p=15552#comment-26151 "Eta Carinae has the luminosity of 4.7 million times the brightness of our sun" ...which is an enormous, inconceivably huge amount energy. But is itself a precursor, the merest hint of the still greater release when the star goes nova. How can anyone not find this utterly awe inspiring?? It certainly puts into perspective our own rather benign corner of the galaxy - and illustrates the incredible power of nature. "Eta Carinae has the luminosity of 4.7 million times the brightness of our sun"

…which is an enormous, inconceivably huge amount energy. But is itself a precursor, the merest hint of the still greater release when the star goes nova.

How can anyone not find this utterly awe inspiring??

It certainly puts into perspective our own rather benign corner of the galaxy – and illustrates the incredible power of nature.

]]> By: Jon Hanford http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26147 Jon Hanford Wed, 16 Jul 2008 13:01:00 +0000 http://www.universetoday.com/?p=15552#comment-26147 Sorry, meant to reference Nexus' comment. Sorry, meant to reference Nexus' comment.

]]> By: Jon Hanford http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26146 Jon Hanford Wed, 16 Jul 2008 12:59:30 +0000 http://www.universetoday.com/?p=15552#comment-26146 The first verified extrasolar planet was found orbiting the pulsar PSR 1257+12 in 1992. Three planets are now known to orbit the pulsar. I agree with Andy, that these planets must be utterly different than those in our solar system, regardless of their origin. The first verified extrasolar planet was found orbiting the pulsar PSR 1257+12 in 1992. Three planets are now known to orbit the pulsar. I agree with Andy, that these planets must be utterly different than those in our solar system, regardless of their origin.

]]> By: Nexus http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26143 Nexus Wed, 16 Jul 2008 12:02:25 +0000 http://www.universetoday.com/?p=15552#comment-26143 Andy, we already know of a handful of planets orbiting pulsars. These must be either the remnants of planets that existed before the star went supernova, or they formed from some of the material thrown off in the explosion. Either way, they must be utterly unlike the planets of our solar system and fascinating things to study if we ever get the chance. Andy,
we already know of a handful of planets orbiting pulsars. These must be either the remnants of planets that existed before the star went supernova, or they formed from some of the material thrown off in the explosion. Either way, they must be utterly unlike the planets of our solar system and fascinating things to study if we ever get the chance.

]]> By: Andy http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26141 Andy Wed, 16 Jul 2008 11:43:45 +0000 http://www.universetoday.com/?p=15552#comment-26141 This sentence, in particular, caught my eye: "When this star blows up, it will evaporate any planets orbiting stars in the vicinity." Has anyone thought to look at stars within existing supernova remnants to see if planets can be located? If none can be found close in, then at what distance do they start to reappear? We already know extrasolar planets exist. Now let's see what can happen to them under extreme circumstances! This sentence, in particular, caught my eye: "When this star blows up, it will evaporate any planets orbiting stars in the vicinity." Has anyone thought to look at stars within existing supernova remnants to see if planets can be located? If none can be found close in, then at what distance do they start to reappear? We already know extrasolar planets exist. Now let's see what can happen to them under extreme circumstances!

]]> By: El Sofista - Eta vs. Peonía: ¿qué estrella se convertirá primero en supernova? http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26105 El Sofista - Eta vs. Peonía: ¿qué estrella se convertirá primero en supernova? Wed, 16 Jul 2008 00:22:53 +0000 http://www.universetoday.com/?p=15552#comment-26105 La campeona reinante de las estrellas más brillantes de la Vía Láctea es Eta Carinae, un estrella muy inestable propensa a estallidos violentos. Los astrónomos afirman que la vida de Eta Carinae probablemente terminará en unos 100 mil años en una explosión del tipo supernova. Eso es bastante rápido en términos cósmicos. Pero el Telescopio Espacial Spitzer ha descubierto una competidora [...] Fuente: Nancy Atkinson para Universe Today, y NASA / Spitzer. La campeona reinante de las estrellas más brillantes de la Vía Láctea es Eta Carinae, un estrella muy inestable propensa a estallidos violentos. Los astrónomos afirman que la vida de Eta Carinae probablemente terminará en unos 100 mil años en una explosión del tipo supernova. Eso es bastante rápido en términos cósmicos. Pero el Telescopio Espacial Spitzer ha descubierto una competidora [...] Fuente: Nancy Atkinson para Universe Today, y NASA / Spitzer.

]]> By: Astrofiend http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26104 Astrofiend Wed, 16 Jul 2008 00:19:32 +0000 http://www.universetoday.com/?p=15552#comment-26104 Dave Says: July 15th, 2008 at 3:19 pm " Isn't our Sun about 900,000 miles diameter? If Peony is roughly 100 times our sun's diameter it would extend far beyond Mercury, past Venus, and nearly to Earth." >>> I think 'diameter' should be replaced with radius. The numbers roughly work out then... Dave Says:
July 15th, 2008 at 3:19 pm

" Isn't our Sun about 900,000 miles diameter? If Peony is roughly 100 times our sun's diameter it would extend far beyond Mercury, past Venus, and nearly to Earth."

>>> I think 'diameter' should be replaced with radius. The numbers roughly work out then…

]]> By: Dave http://www.universetoday.com/2008/07/15/eta-vs-peony-which-star-will-go-supernova-first/comment-page-1/#comment-26096 Dave Tue, 15 Jul 2008 22:19:37 +0000 http://www.universetoday.com/?p=15552#comment-26096 Isn't our Sun about 900,000 miles diameter? If Peony is roughly 100 times our sun's diameter it would extend far beyond Mercury, past Venus, and nearly to Earth. Isn't our Sun about 900,000 miles diameter? If Peony is roughly 100 times our sun's diameter it would extend far beyond Mercury, past Venus, and nearly to Earth.

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