| Piú votate - Deep Sky Objects |
Orion Region.jpgOrion Region and the Orionids Meteor-Shower70 visite"...Il miglior risultato che si pu ottenere usando la ragionevolezza durante il confronto con un pazzo, quello di passare per stupidi..."
(P.C. Floegers - "Conversations")
(12 voti)
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Abell 21.jpgAbell 21 - Emission Nebula126 visite"...Oh, send out Your Light and Your Truth;
Let them lead me..."
Psalm 43:3
(12 voti)
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NGC-6357.jpgNGC 6357 - Emission Nebula and Open Star Cluster74 visite"...I closed my eyes,
Drew back the curtains,
To see for certain,
What I thought I knew,
Far far away, someone was weeping,
But the World was sleeping,
Any Dream will do..."
Dal Musical "Joseph and the Amazing Technicolor Dreamcoat"
(12 voti)
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IC-1805~0.jpgIC 1805 (alias "The Heart Nebula")81 visite"...You have pain now; but I will see you again, and your hearts will rejoice, and no one will take your joy from you..."
- John 16:22
(12 voti)
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NGC-7000-02.jpgNGC 7000 - North America Nebula71 visite"...Veritas absolutio semper est simplex..."
(Ammiano Marcellino)
"...La Perfetta Verità è sempre semplice..."
(12 voti)
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CHXR-73-ann.jpgCHXR-73 - Companions... (2)100 visite"...Sua quemque fraus, suus timor maxime vexat..."
(Terenzio)
"...C' chi schiavo della sua paura, chi lo della sua disonest..."
(12 voti)
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NGC-6397-Graph.jpgNGC 6397 - The "White Dwarfs Hook"80 visiteThis graph schematically plots two populations of stars Hubble has seen in neighboring star cluster NGC 6397. The graph, a simplified version of the original data, plots stellar brightness (vertical axis) against stellar color-temperature. The normal main sequence stars in the cluster are plotted on the right curve.
The cooler a star is, the redder it appears and it diminishes in brightness.
Hubble has identified the very coolest and faintest normal stars in the cluster.
The curve on the left plots the white dwarf population of burned-out sunlike stars. It follows a normal "cooling slope" until the white dwarf begins to look bluer and hook toward the left BUT the dwarfs aren't getting hotter!
Chemical changes in their atmospheres make them look cooler.
This predicted "white dwarfs hook" has never been seen before.
(12 voti)
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NGC-7000-00.jpgNGC 7000 - North America Nebula72 visite"...Excidunt etiam retinentibus lacrimae, et animum profusae levant..."
(Seneca)
"...Le lacrime vengono anche a chi si sforza di trattenerle e, una volta lasciate andare, alleviano la sofferenza (lett. "sollevano l'animo")..."
(12 voti)
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NGC-3199.jpgNGC 3199 - Inside the "Carina Constellation"76 visite"...Tu, quamcumque Deus tibi fortunaverit horam,
Grata sume manu neu dubia differ in annum..."
(Orazio)
"Tu, qualunque sia l'ora (propizia) che Giove ti avrà riservato, afferrala e sii riconoscente; e (ricorda) di non posporre (mai) le cose belle che, nel corso degli anni, ti verranno offerte..."
(12 voti)
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NGC-5746.jpgNGC 5746 - Spiral Galaxy72 visite"...Si huyes del sonido
Eres sonido de todos modos,
Espectro de armonía,
Humo de grito y canción"
(traduzione)
"...Se fuggi il suono
Sei suono lo stesso,
Spettro di armonia,
Fumo di grido e canto..."
F.G. LORCA
(12 voti)
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SNR-Vela_-_Pulsar.jpgThe Vela Pulsar71 visite"...Proxumus sum egomet mihi..."
(Terenzio)
"...Il mio primo "prossimo", sono io..."
(12 voti)
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NGC-4038_and_NGC-4039-3.jpgNGC 4038 and 4039: The "Antennae" Colliding Galaxies73 visite"...Ambition is the last resort of failure..."
(Oscar Wilde)
Caption NASA originale:"Some 60 million LY away in the southerly constellation Corvus, two large galaxies have collided. But stars in the two galaxies - NGC 4038 and NGC 4039 - don't collide in the course of the ponderous, billion year or so long event. Instead, their large clouds of molecular gas and dust do, triggering furious episodes of star formation.
Spanning about 500.000 LY, this stunning view reveals new star clusters and matter flung far from the scene of the accident by gravitational tidal forces. Of course, the visual appearance of the far-flung arcing structures gives the galaxy pair their popular name - "The Antennae". Recorded in this deep image of the region at the tip of the upper arc is a tidal dwarf galaxy NGC 4038S, formed in the cosmic debris".
(12 voti)
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