| Ultimi commenti - Deep Sky Objects |
BH-Black-Hole_Torus.jpgBlack-Hole Torus241 visite"...All'interno delle Galassie Attive - e, più precisamente, al loro centro - noi riteniamo (ma sarebbe meglio dire "speculiamo") che possa trovarsi un Buco Nero di massa enorme.
Le Galassie Attive più comuni appartengono alla Classe Seyfert (ST) e si dividono in S-T1 ed S-T2: le prime (nello spettro visibile) sono luminosissime mentre le seconde, invece, appaiono piuttosto flebili.
Perché?
Forse perchè, nelle ST-2, il Buco Nero centrale è circondato da un anello di materia oscura..."
07/03/20 at 07:13Anakin: IL BUCO NERO PIU' AFFAMATO DELL'UNIVERSO
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IC-2118.jpgRigel and the Witch-Head Nebula126 visite"...Multa experiendo fiunt, (res) quae segnibus ardua videntur..."
(Tacito)
"...Tentando, molte cose che appaiono impossibili, possono essere compiute..."
Caption NASA:"(...) This suggestively shaped reflection nebula is associated with the bright star Rigel in the constellation Orion. More formally known as IC 2118, the Witch Head Nebula glows primarily by light reflected from Rigel, the brightest star in the upper right of the full image. Fine dust in the nebula reflects the light. The blue color is caused not only by Rigel's blue color but because the dust grains reflect blue light more efficiently than red. The same physical process causes Earth's daytime sky to appear blue, although the scatterers in Earth's atmosphere are molecules of Nitrogen and Oxygen. The nebula lies about 1000 LY away".07/02/20 at 15:55Anakin: Confrontando vecchie mappe stellari con quelle pi?...
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IC-2118.jpgRigel and the Witch-Head Nebula126 visite"...Multa experiendo fiunt, (res) quae segnibus ardua videntur..."
(Tacito)
"...Tentando, molte cose che appaiono impossibili, possono essere compiute..."
Caption NASA:"(...) This suggestively shaped reflection nebula is associated with the bright star Rigel in the constellation Orion. More formally known as IC 2118, the Witch Head Nebula glows primarily by light reflected from Rigel, the brightest star in the upper right of the full image. Fine dust in the nebula reflects the light. The blue color is caused not only by Rigel's blue color but because the dust grains reflect blue light more efficiently than red. The same physical process causes Earth's daytime sky to appear blue, although the scatterers in Earth's atmosphere are molecules of Nitrogen and Oxygen. The nebula lies about 1000 LY away".07/02/20 at 15:41MareKromium: ...Affascinante! Ma le stelle, in accordo alla nos...
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IC-2118.jpgRigel and the Witch-Head Nebula126 visite"...Multa experiendo fiunt, (res) quae segnibus ardua videntur..."
(Tacito)
"...Tentando, molte cose che appaiono impossibili, possono essere compiute..."
Caption NASA:"(...) This suggestively shaped reflection nebula is associated with the bright star Rigel in the constellation Orion. More formally known as IC 2118, the Witch Head Nebula glows primarily by light reflected from Rigel, the brightest star in the upper right of the full image. Fine dust in the nebula reflects the light. The blue color is caused not only by Rigel's blue color but because the dust grains reflect blue light more efficiently than red. The same physical process causes Earth's daytime sky to appear blue, although the scatterers in Earth's atmosphere are molecules of Nitrogen and Oxygen. The nebula lies about 1000 LY away".07/01/20 at 08:20Anakin: LA MISTERIOSA SCOMPARSA DI UNA STELLA MASSICCIA
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Black_Hole-BB13U1YE.jpgBlack Hole in the "Heart" of M 87216 visiteThe first image of a black hole, previously thought nigh impossible to capture, was named the top scientific breakthrough of 2019 by the journal "Science".
Black holes have gravitational pulls so powerful that, past thresholds known as their event horizons, nothing can escape, not even light. Supermassive black holes millions to billions of times the mass of our sun are thought to lurk in the hearts of virtually every large galaxy, influencing the fate of every star caught in their gravitational thrall.
Using Albert Einstein's theory of general relativity, German physicist Karl Schwarzschild was the first to lay the foundation of the science describing black holes. In the decades since then, scientists have detected numerous signs of black holes, such as the effects their gravity have on their surroundings and the ripples in the fabric of space and time known as gravitational waves emitted when they collide.MareKromium06/26/20 at 16:22MareKromium: Non oso immaginare lo Spettacolo!!!... ;-)
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Black_Hole-BB13U1YE.jpgBlack Hole in the "Heart" of M 87216 visiteThe first image of a black hole, previously thought nigh impossible to capture, was named the top scientific breakthrough of 2019 by the journal "Science".
Black holes have gravitational pulls so powerful that, past thresholds known as their event horizons, nothing can escape, not even light. Supermassive black holes millions to billions of times the mass of our sun are thought to lurk in the hearts of virtually every large galaxy, influencing the fate of every star caught in their gravitational thrall.
Using Albert Einstein's theory of general relativity, German physicist Karl Schwarzschild was the first to lay the foundation of the science describing black holes. In the decades since then, scientists have detected numerous signs of black holes, such as the effects their gravity have on their surroundings and the ripples in the fabric of space and time known as gravitational waves emitted when they collide.MareKromium06/24/20 at 20:28Anakin: Ci credo. Basterebbe una distanza di 10/15 anni lu...
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Black_Hole-BB13U1YE.jpgBlack Hole in the "Heart" of M 87216 visiteThe first image of a black hole, previously thought nigh impossible to capture, was named the top scientific breakthrough of 2019 by the journal "Science".
Black holes have gravitational pulls so powerful that, past thresholds known as their event horizons, nothing can escape, not even light. Supermassive black holes millions to billions of times the mass of our sun are thought to lurk in the hearts of virtually every large galaxy, influencing the fate of every star caught in their gravitational thrall.
Using Albert Einstein's theory of general relativity, German physicist Karl Schwarzschild was the first to lay the foundation of the science describing black holes. In the decades since then, scientists have detected numerous signs of black holes, such as the effects their gravity have on their surroundings and the ripples in the fabric of space and time known as gravitational waves emitted when they collide.MareKromium06/24/20 at 17:35MareKromium: ...Gi, sarebbe fantastico... E non scherzo!
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Black_Hole-BB13U1YE.jpgBlack Hole in the "Heart" of M 87216 visiteThe first image of a black hole, previously thought nigh impossible to capture, was named the top scientific breakthrough of 2019 by the journal "Science".
Black holes have gravitational pulls so powerful that, past thresholds known as their event horizons, nothing can escape, not even light. Supermassive black holes millions to billions of times the mass of our sun are thought to lurk in the hearts of virtually every large galaxy, influencing the fate of every star caught in their gravitational thrall.
Using Albert Einstein's theory of general relativity, German physicist Karl Schwarzschild was the first to lay the foundation of the science describing black holes. In the decades since then, scientists have detected numerous signs of black holes, such as the effects their gravity have on their surroundings and the ripples in the fabric of space and time known as gravitational waves emitted when they collide.MareKromium06/24/20 at 09:20Anakin: Peccato non averne uno a "pochi passi"
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NGC-1313.jpgNGC 1313 - Colliding Galaxies81 visite"...Putrescat ut resurgat..."
(Lucrezio - attribuitagli)
"...Deve marcire (prima) affinch possa risorgere (poi)..."
Nota: massima indicata riferendosi a Popoli di grande Civilt e raffinatezza i quali, dopo un periodo di splendore, sono poi decaduti, per poi risorgere ancora (come le Umane Leggi insegnano).MareKromium05/20/20 at 16:44MareKromium: Secondo me, l'ondata di ritorno non ci sar?. L...
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NGC-1313.jpgNGC 1313 - Colliding Galaxies81 visite"...Putrescat ut resurgat..."
(Lucrezio - attribuitagli)
"...Deve marcire (prima) affinch possa risorgere (poi)..."
Nota: massima indicata riferendosi a Popoli di grande Civilt e raffinatezza i quali, dopo un periodo di splendore, sono poi decaduti, per poi risorgere ancora (come le Umane Leggi insegnano).MareKromium05/16/20 at 11:31Anakin: Bisognerebbe capire quale sia o sar? questo peggio...
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NGC-1313.jpgNGC 1313 - Colliding Galaxies81 visite"...Putrescat ut resurgat..."
(Lucrezio - attribuitagli)
"...Deve marcire (prima) affinch possa risorgere (poi)..."
Nota: massima indicata riferendosi a Popoli di grande Civilt e raffinatezza i quali, dopo un periodo di splendore, sono poi decaduti, per poi risorgere ancora (come le Umane Leggi insegnano).MareKromium05/16/20 at 08:15walthari: temo che il peggio debba ancora arrivare
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ABELL39.jpgSpherical Planetary Nebula Abell 39467 visite"...L'esistenza di molti trascorre in attesa che sia proprio il Tempo a dare qualcosa e così, mentre si resta immobili ad aspettare, non ci si accorge che intanto l'intero Universo ha cambiato posizione e d'immutata è rimasta solo la nostra immagine, sul cui riflesso abbiamo fissato quell'esistenza..."
Giuseppe Spina
05/14/20 at 05:41MareKromium: Attivata!!! E bentornata!!!
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