terça-feira, 6 de setembro de 2016

O belo voo da Águia, Aquila

Olá!

Nesses momentos em que a Lua vai crescendo e iluminando
o comecinho da noite,
Caro Leitor,
por que não voltarmos nossos olhares para os céus  estrelados mais ao  norte
onde podemos observar uma constelação
que muito seduz nossos olhares, 
desde sempre:
o voo da Águia, Aquila,
sempre nos revelando suas três estrelas mais proeminentes
que parecem viajarem juntas, sempre unidas, sempre em linha....
São elas a conhecida Altair, estrela-alpha Aquilae,
acompanhada de Tarazed e Alshain.

Estas três estrelas podem nos fazer lembrar de outras três estrelas
que também formam um simpaticíssimo asterismo:
As Três Marias - Alnilan, Alnitak e Mintaka -, 
na constelação do Gigante Órion...
talvez a constelação mais cantada e encantada
 e mais conhecida por todos, não é mesmo?

Sendo assim, volta e meia eu penso que podemos pensar
nas três estrelas proeminentes da constelação da Águia
como "As Três Marias do Norte", por que não?
São elas Altair, Alshain e Tarazed.

 Altair, estrela-alpha Aquilae,
é também conhecida como fazendo parte
do famoso Triângulo do Verão (para o hemisfério norte)
ou Triângulo do Norte (para nós, do hemisfério sul),
juntamente com as estrelas-alpha Lyrae e Cygnii,
Vega e Deneb, respectivamente.
(As constelações Lyra e Cygnus
serão por nós comentadas
mais à frente, aguarde,
assim como a Lenda antiga
que envolve as estrelas que compõem
esse belíssimo Triângulo!).


Stellarium

Stellarium



http://www.raremaps.com/gallery/detail/33151op/Aquila_Stars_Heightened_in_Gold/Bayer.html


Map Maker: Johann Bayer




Nossa Postagem de hoje
vem apresentar a você, Caro Leitor,
alguma informação sobre as três estrelinhas mais proeminentes de Aquila, a Águia,
e um tanto de suas lendas e histórias...,
e também informações sobre
alguns objetos bem interessantes
que podem ser acessados a partir do direcionamento da constelação da Águia.

Quer dizer, a Águia não somente nos apresenta suas belas três estrelas
- podendo serem chamadas por nós como As Três Marias do Norte (por que não?) -,
como também o voo da Águia pode nos levar para ainda além, muito além
de nossa visão a olho nu
e nos oferecendo um mundo de maravilhas
a ser desbravado, conhecido, apreciado.

Vamos então voar junto à Águia?

Com um abraço estrelado,
Janine Milward




http://www.walldesk.net/wallpaper/wallpapers-birds-aguias.asp?f=1059







Mario Jaci Monteiro - As Constelações, Cartas Celestes


Mario Jaci Monteiro - As Constelações, Cartas Celestes








http://www.raremaps.com/gallery/detail/30252/Aquila_and_Antinous_Stars_heightened_in_gold/Hevelius.html


ap Maker: Johannes Hevelius
Fine example of Johannes Hevelius's chart of Aquila, Antinous and surrounding constellations, from his highly importantFirmamentum Sobiescianum sive Uranographia.




AQUILA, A ÁGUIA


Posicionamento:
Ascensão Reta 18h38m/20h36m  Declinação -11o 9’ a  -18o 6’



Mito:
A Águia representa Júpiter carregando Ganimedes para o céu 
- fazendo parte, portanto, do mito de Aquário. 


Algumas Informações Interessantes acerca esta Constelação:
A Águia tem sido sempre associada com pássaros
e o seu desenho triangular representa um pássaro com suas asas bem abertas. Originalmente, esta constelação era chamada de Vultur Volans. 


Fronteiras:
Aquila situa-se entre as constelações Scutum, Sagittarius, Capricornius, Aquarius, Equuleus, Pegasus, Delphinus, Sagitta, Hercules, Ophiucus, Serpens

AS "TRÊS MARIAS DO NORTE", EM AQUILA:
ALTAIR, ALSHAIN E TARAZED



Altair situa-se ao centro, tendo Alshain de um lado e Tarazed de outro lado
 - todas três perfazendo as estrelas mais proeminentes da Águia 
e atuando em vôo conjunto, facilmente identificável nos céus, 
mesmo que contra o pano de fundo da Via Láctea.



Excerto a partir da Carta Celeste de Aquila realizada por Mario Jaci Monteiro




Altair.  Alpha Aquilae. 
Ascensão Reta 19h 49,8 - Declinação +08o 49’
Magnitude visual 0,89 - Distância 16 anos-luz

Uma estrela amarelada e pálida no pescoço da Águia. 
De Al Tair, a Águia,
 e algumas vezes chamada de Pássaro de Jó. 
 O Pássaro que Voa.
Esta estrela possui uma rotação extraordinariamente rápida, r
odando em torno ao seu eixo 
uma vez cada 6.5 horas, 
o que evidentemente explica sua forma 
de um grande elipsóide achatado.

Alshain - Beta Aquilae
Magnitude visual 3.9
A Águia.

Tarazed - Gamma Aquilae
Distância de 340 anos-luz.
Voadora, nome de origem persa de significado idêntico ao de Altair.


6a. Edição do Atlas Celeste
de autoria de Ronaldo Rogério de Freitas Mourão,
Editora Vozes, Petrópolis, ano de 1986







Estrelas Tradicionais

  • Altair (Althair, Athair, Attair, and Atair)- O coração da Águia, estrela benéfica, A7, 16al
  • Alshain (Al Unuk al Ghurab, o pescoço do corvo) - G8, 44.7al
  • Tarezed (Tarazad, o bico do corvo) - K3, 461al
  • Deneb Okab (Deneb el Okab Borealis, a cauda da Águia) - estrela tripla, K3 gigante, 154al
  • Deneb (Deneb el Okab Australis) - estrela tripla, A-dwarf, 82al
  • Bezek (o trovão) - cepheid-variavel, 1200al


Lendas

A palavra "águia" vem do Latim "Aquila". Na Grã-Bretanha, antes de 1678, a palavra águia se referia especificamente à águia-real (Aquila chrysaetos). Áquila também foi um estandarte militar romano. Aquiline significa ter as características de uma águia, ou curvado como bico de uma águia: como em 'um nariz aquilino'.
Aquila representa uma águia, o passáro-trovão dos gregos. Há várias explicações para a presença desta águia no céu. Na mitologia grega e romana, a águia era o pássaro de Zeus, carregando (e recuperando) os raios que o deus irado lançava em seus inimigos. Todavia, a águia foi envolvida em amor; assim como na guerra.
De acordo com uma história antiga, Aquila é a águia que pegou o menino de Troia, Ganimedes, filho do rei Tros, para se tornar o copeiro dos deuses no Olimpo. Autoridades, como o poeta romano Ovídio disseram que Zeus se transformou numa águia, enquanto outros dizem que a águia era simplesmente enviada por Zeus. Ganimedes é representado pela constelação de Aquário. Germânico, diz que a águia está guardando as setas de Eros que fez Zeus preso por amor.
As constelações da águia e o cisne são ligadas em uma história por Higino. Zeus apaixonou-se pela deusa Nemesis. Para fugir à tenaz perseguição de Zeus – este depois sendo perseguido por Afrodite, na forma de uma águia – percorreu o mundo inteiro, tomando todas as formas possíveis, até que, cansada, se transformou em uma gansa. O deus se metamorfoseou em cisne e a possuiu. Para comemorar este truque bem-sucedido, Zeus colocou as imagens do cisne e da águia no céu.
O nome da estrela mais brilhante da constelação, Altair, vem do árabe al-nasr al-ta’ir, que significa "vôo da águia". Ptolomeu chamou essa estrela de Aetus, a águia, o mesmo nome da constelação. Há uma grande quantidade de material sobre Altair em obras ficcionais, tais como: star trek, Stargate SG-1, The Hitchhiker's Guide to the Galaxy, etc. O estudioso alemão Paul Kunitzsch observa que os babilônios e sumérios referiam à Altair como a estrela da águia, testemunhando uma origem mais antiga do nome. As estrelas vizinhas de Altair, Beta e Gamma Aquilae, ficam no pescoço da águia e em seu "ombro" esquerdo, respectivamente, de acordo com a descrição de Ptolomeu. Estas duas estrelas têm os seus nomes próprios, Alshain e Tarazed, provenientes de uma tradução das palavras persas do árabe antigo que significam, respectivamente; Alshain - o falcão peregrino - e Tarazed - falcão real.
Altair forma um canto do chamado Triângulo de Verão com as estrelas Vega e Deneb, encontradas nas constelações de Cygnus e Lyra, concomitantemente. Um charmoso mito oriental visualiza as estrelas de Áquila e as de Lyra como dois amantes separados pelo rio da Via Láctea, capazes de reunir-se em apenas um dia de cada ano, quando Pega-rabudas recolhem-se para formar uma ponte que atravessa o rio celestial.
A parte sul de Aquila foi subdividida por Ptolomeu em uma constelação agora obsoleta, chamada Antinous, visualizada em alguns mapas como sendo mantida nas garras da águia.

Associações chinesas

Na China, Altair e suas duas estrelas de acompanhamento eram conhecidas como Hegu, um tambor grande. A linha para o sul formada por Theta, 62, 58 e Eta Aquilae foi Tianfu, a baqueta. Altair e os seus assistentes também eram conhecidos como os três generais, o comandante no centro flanqueado por dois subordinados. Em um conto folclórico popular chinês, Altair representa um vaqueiro separado de sua amante (a estrela Vega) pela Via Láctea. Delta Aquilae e as estrelas em torno dela formam Youqi, uma bandeira tremulando sobre o lado direito do tambor, enquanto as estrelas de Sagitta ao norte eram um estandarte do lado esquerdo do tambor.
Delta Aquilae foi agrupada com as estrelas de Scutum para fazer Tianbian, uma equipe de funcionários de o comércio a supervisionar a organização dos mercados.
O arco formado por 69, 70 e 71 Aquilae mais 1 Aquarii era conhecido como Lizhu, representando quatro pérolas.





http://media.skysurvey.org/interactive360/index.html


Aquila, the Eagle

the French Aigle, the German Adler, and the Italian Aquila, next to and westward from the Dolphin, is shown flying toward the east and across p56the Milky Way; its southern stars constituting the now discarded Antinoüs. Early representations added an arrow held in the Eagle's talons; and Hevelius included a bow and arrow in his description; but on the Heis map the Youth is held by Aquila, for the Germans still continue this association in their combined title der Adler mit dem Antinoüs.
Our constellation is supposed to be represented by the bird figured on a Euphratean uranographic stone of about 1200 B.C., and known on the tablets as Idχu Zamama, the Eagle, the Living Eye.
It always was known as Aquila by the Latins, and by their poets as Jovis Ales and Jovis Nutrix, the Bird, and the Nurse, of Jove; Jovis Armigerand Armiger Ales, the Armor-bearing Bird of Jove in this god's conflict with the giants; while Ganymedes Raptrix and Servans Antinoüm are from the old stories that the Eagle carried Ganymede to the heavens and stood in attendance on Jove. Ovid made it Merops, King of Cos, turned into the Eagle of the sky; but others thought it some Aethiopian king like Cepheus, and with the same heavenly reward.
As the eagles often were confounded with the vultures in Greek and Roman ornithology, at least in nomenclature, Aquila also was Vultur volans, the stars β and γ, on either side of α, marking the outstretched wings; this title appearing even as late as Flamsteed's day, and its translation, the Flying Grype, becoming the Old English name, especially with the astrologers, who ascribed to it mighty virtue.
Ἀετός, the Eagle, in a much varied orthography, was used for our constellation by all the Greeks; while poetically it was Διός Ὄρνις, the Bird of Zeus; and Pindar had Ὀινῶν Βασιλεῦς, the King of Birds, which, ornithologically, has come to our day. Later on it was ΒάσανοςΒασανισμός andΒασανιστήριον, all kindred titles signifying Torture, referred by Hyde to the story of the eagle which preyed on the liver of Prometheus. Similarly we find Aquila Promethei and Tortor Promethei; but Ideler said that this idea came from a confounding by Scaliger of the Arabic ʽIkāb, Torture, and ʽOḳāb, Eagle.
Dupuis fancifully thought that its name was given when it was near the summer solstice, and that the bird of highest flight was chosen to express the greatest elevation of the sun; and he asserted that the famous three Stymphalian Birds of mythology were represented by Aquila, Cygnus, and Vultur cadens, our Lyra, still located together in the sky; the argument being that these are all paranatellons of Sagittarius, which is the fifth in the line of zodiacal constellations beginning with Leo, the Nemean lion, the object of Hercules' first labor, while the slaying of the birds was the fifth. Appropriately enough, like so much other stellar material, these creatures p57came from Arabia, migrating thence either to the Insula Martis, or to Lake Stymphalis, where Hercules encountered them.
Thompson thinks that the fable, in Greek ornithology, of the eagle attacking the swan, but defeated by it, is symbolical of "Aquila, which rises in the East, immediately after Cygnus, but, setting in the West, goes down a little while before that more northern constellation."
A similar thought was in the ancient mind as to the eagle in opposition to the dolphin and the serpent; their stellar counterparts, Aquila, Delphinus, and Serpens, also being thus relatively situated.
In connection with the story of Ganymede, the eagle appeared on coins of Chalcis, Dardanos, and Ilia; and generally on those of Mallos in Cilicia and of Camarina; while it is shown perched on the Dolphin on coins of Sinope and other towns, chiefly along the Black Sea and Hellespont. One, bearing the prominent stars, was struck in Rome, 94 B.C., by Manius Aquilius Nepos,1 the design being evidently inspired by his name; and a coin of Agrigentum bears Aquila, with Cancer on the reverse, — the one setting as the other rises.
To the Arabians the classical figure became Al ʽOḳāb, probably their Black Eagle, Chilmead citing this as Alhhakhab; while their Al Naṣr al Ṭāïr, the Flying Eagle, was confined to αβ, and γ; although this was contrary to their custom of using only one star for a sky figure. Grotius called the whole Altair and Alcair; Bayer said Alcar and Atair. Al Achsasi, however, mentioned it as Al Ghurāb, the Crow, or Raven, probably a late Arabian name, and the only instance that I have seen of its application to the stars of our Aquila.
Persian titles were AlubGherges, and Shahin tara zed, the Star-striking Falcon of Al Naṣr al Dīn, but now divided for β and γ. In the Ilkhanian Tables, as perhaps elsewhere, it was Γύψ πετόμενος, the Flying Vulture; the Turks call it Taushaugjil, their Hunting Eagle; — all these for the three bright stars.
The Hebrews knew it as Neshr, an Eagle, Falcon, or Vulture; and the Chaldee Paraphrase asserted that it was figured on the banners of Dan; but as these tribal symbols properly were for the zodiac, Scorpio usually was ascribed to Dan. This confusion may have originated from the fact, asserted by Sir William Drummond, that in Abraham's day Scorpio was figured as an Eagle. Caesius said that Aquila represented the Eagle of military Rome, or the Eagle of Saint John; but Julius Schiller had already made it Saint Catherine the Martyr; and Erhard Weigel, a p58professor at Jena in the 17th century, started a new set of constellations, based on the heraldry then so much in vogue, among which was the Brandenburg Eagle, made up from Aquila, Antinoüs, and the Dolphin. Hevelius said that the stellar Eagle was a fitting representation of that bird on the Polish and Teutonic coats of arms.
The Chinese have here the Draught Oxen, mentioned in the book of odes entitled She King, compiled 500 years before Christ by K'ung fu tsu, Kung the Philosopher (Confucius), — the passage being rendered by the Reverend Doctor James Legge:
Brilliant show the Draught Oxen,
But they do not serve to draw our carts;
and the three bright stars are their Cowherd, for whom the Magpies' Bridge gives access to the Spinning Damsel, our Lyra, across the River of the Sky, the Milky Way. This story appears in various forms; stars in the Swan sometimes being substituted for those in the Eagle, Lyra becoming the Weaving Sisters.
The Korean version, with more detail, turns the Cowherd into a Prince, and the Spinster into his Bride, both banished to different parts of the sky by the irate father-in‑law, but with the privilege of an annual meeting if they can cross the River. This they accomplish through the friendly aid of the good-natured magpies, who congregate from all parts of the kingdom during the 7th moon, and on its 7th night form the fluttering bridge across which the couple meet, lovers still, although married. When the day is over they return for another year to their respective places of exile, and the bridge breaks up; the birds scattering to their various homes with bare heads, the feathers having been worn off by the trampling feet of the Prince and his retinue. But as all this happens during the birds' molting-time, the bare heads are not to be wondered at; nor, as it is the rainy season, the attendant showers which, if occurring in the morning, the story-tellers attribute to the tears of the couple in the joy of meeting; or if in the evening, to those of sorrow at parting. Should a magpie anywhere be found loitering around home at this time, it is pursued by the children with well-merited ill-treatment for its selfish indifference to its duty. Nor must I forget to mention that the trouble in the royal household originated from the Prince's unfortunate investment of the paternal sapekes in a very promising scheme to tap the Milky Way and divert the fluid to nourish distant stars.
Another version is given by the Reverend Doctor William Elliot Griffis in his Japanese Fairy World, where the Spinning Damsel is the industrious princess Shokujo, separated by the Heavenly River from her herd-boy lover, p59Kinjin. But here the narrator makes Capricorn and the star Wega represent the lovers.
The native Australians knew the whole of Aquila as Totyarguil, one of their mythical personages, who, while bathing, was killed by a kelpie; their stellar Eagle being Sirius.
It was in the stars of our constellation, to the northwest of Altair, that Professor Edward E. Barnard discovered a comet from its trail on a photograph taken at the Lick Observatory on the 12th of October, 1892 — the first ever found by the camera.
Argelander catalogued 82 naked-eye stars in Aquila, including those of Antinoüs; Heis gives 123.

α, 1.3, pale yellow.

Altair is from a part of the Arabic name for the constellation; but occasionally is written AlthairAthairAttair, and Atair; this last readers ofBen Hur will remember as the name of one of the shaykh Ilderim's horses in the chariot race at Antioch. And the word has been altered to Alcair,Alchayr, and Alcar.
In the Syntaxis it was Ἀετός, one of Ptolemy's few stellar titles, probably first applied to α, and after the formation of the figure transferred to the latter, as in other instances in the early days of astronomy. Even six or seven centuries before Ptolemy it was referred to as Αἰετόςº where the chorus in the Ῥῆσος, until recently attributed to Euphrates, says:
What is the star now passing?
the answer being:
The Pleiades show themselves in the east,
The Eagle soars in the summit of heaven.
It is supposed that long antecedent to this it was the Euphratean Idχu, the Eagle, or Erigu, the Powerful Bird, inscriptions to this effect being quoted by Brown, who thinks that it also was the Persian Muru, the Bird; the Sogdian Shad Mashir, and the Khorasmian Sadmasjij, the Noble Falcon.
In Mr. J. F. Hewitt's Essays on the Ruling Races of Prehistoric Times it is asserted that later Zend mythology knew Altair as Vanant, the Western Quarter of the heavens, which earlier had been marked by our Corvus.
With β and γ it constituted the twenty-first nakshatra Çravana, the Ear, and probably was at first so drawn, although also known as Çrona, Lame, or as Açvattha, the Sacred Fig Tree, Vishnu being regent of the asterism; these stars representing the Three Footsteps with which that god strode through the heavens, a Trident being the symbol.
p60In China αβ, and γ were Ho Koo, a River Drum.
In astrology Altair was a mischief-maker, and portended danger from reptiles.
Ptolemy, who designated the degrees of star brilliancy by Greek letters, applied β to this as being of the 2d magnitude, whence some think that it has increased in light since his day. It is now the standard 1st magnitude according to the Pogson, or "absolute," photometric scale generally adopted by workers in stellar photometry, and is largely used in determining lunar distances at sea; while Flamsteed made it the fundamental reference star in his observations on the sun and in the construction of his catalogue.
Its parallax,2 0ʺ.214, considered by Elkin as nearly or quite exact, indicates a distance of about 15⅕ light years.
Its spectrum is of Pickering's class Xb of Secchi's first type, but peculiar, with very hazy solar lines between the broad hydrogen lines.
Altair has the large proper motion of 0ʺ.65 annually; and Gould thought it slightly variable.
It marks the junction of the right wing with the body, and rises at sunset about the 15th of June, culminating on the 1st of September.
Near it appeared, in A.D. 389, an object, whether a temporary star or a comet is not now known, said by Cuspinianus to have equaled Venus in brilliancy, which vanished after three weeks' visibility; and there is record of another, of sixty years previous, in the constellation.
5° to the eastward of Altair, according to Denning, lies the radiant point of the Aquilids, the meteor stream visible from the 7th of June to the 12th of August.

β, 3.9, pale orange.

Alshain is from Shahin, a portion of the Persian name for the constellation; but Al Achsasi termed it Al Unuḳ al Ghurāb, the Raven's Neck.
It is the southern of the two stars flanking Altair; yet, although it bears the second letter, is not as bright as γ or δ.

γ, 3, pale orange.

Tarazed, or Tarazad, from the same Persian title, lies north of Altair.
These three stars constitute the Family of Aquila, the line joining them being 5° in length.
p61Just north of γ is π, the only pretty and fairly easy double in the constellation. The components, of 6 and 6.8 magnitudes, 1ʺ.5 apart, are at a position angle of 120°.7.
δη, and θ, of 3d to 4th magnitudes, in Antinoüs, were Al Mizān, the Scale-beam, of early Arabia, from their similar direction and nearly equal distances apart.


NGC 6751 é uma nebulosa planetária na direção da constelação de Aquila
O objeto foi descoberto pelo astrônomo Albert Marth em 1863, usando um telescópio refletor com abertura de 48 polegadas. Devido a sua moderada magnitude aparente (+11,9), é visível apenas com telescópios amadores ou com equipamentos superiores.







NGC 6751 PLANETARY NEBULA








NGC 6760 é um aglomerado globular na direção da constelação de Aquila. O objeto foi descoberto pelo astrônomo John Hind em 1845, usando umtelescópio refrator com abertura de 7 polegadas. Devido a sua moderada magnitude aparente (+9), é visível apenas com telescópios amadores ou com equipamentos superiores.
http://pt.wikipedia.org/wiki/NGC_6760


 NGC 6760 - Globular Cluster in Aquila
Attachment
http://www.cloudynights.com/ubbarchive/showflat.php/Cat/0/Number/1211575/Main/1211534






NGC 6755 é um aglomerado aberto na direção da constelação de Aquila


O objeto foi descoberto pelo astrônomo William Herschel em 1785, usando um telescópio refletor com abertura de 18,6 polegadas. Devido a sua moderada magnitude aparente (+7,5), é visível apenas com telescópiosamadores ou com equipamentos superiores.

[DSS image of NGC 6755]



NGC 6755. Right Ascension = 19:07.8, Declination = +04:14 (2000.0), Field: 18 arc minutes.







NGC 6756 é um aglomerado aberto na direção da constelação de Aquila. O objeto foi descoberto pelo astrônomo William Herschel em 1791, usando um telescópio refletor com abertura de 18,6 polegadas. Devido a sua moderada magnitude aparente (+10,6), é visível apenas com telescópiosamadores ou com equipamentos superiores.












New Star Cluster Discovered in the Infrared

Using an automated computer method to sift through data collected by NASA's Spitzer Space Telescope, astronomers on the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) team found a new star cluster (inset) in our Milky Way galaxy, in the northern constellation Aquila (main image).

The new cluster is seen in the center of the red nebula, or star-forming cloud, as the grouping of small blue, yellow, and green stars. The wisps of red are organic molecules within the dust which have been illuminated by nearby star formation. Green indicates the presence of hot hydrogen gas. Blue predominantly reveals older stars. The bright white arc located to the lower left side of the central star cluster shows the area where a massive star is forming.

For years, dense obscuring clouds of dust have blocked the central cluster from optical vi
ew. The high density of the stars triggered the GLIMPSE team's automatic cluster-finding computer program to the presence of this cluster. There are still some dust clouds even in the heart of this cluster, as seen in the inset, indicating, that stars are probably still being formed today. With time, these clouds will disappear as more stars form.

The infrared image was captured with the Spitzer's infrared array camera (IRAC). The picture is a 4-channel color composite, showing emission from wavelengths of 3.6 microns (blue), 4.5 microns (green), 5.8 microns (orange) and 8.0 microns (red).


NGC 6781 é uma nebulosa planetária localizada na constelação de Aquilla.
http://www.noao.edu/outreach/aop/observers/n6781.html
This is an almost a perfect bubble of gas cast off by a single star that has died. The bubble continues to expand; it is approximately two light years across now. Its imperfection (from our perspective) is due to photodisassociation (yes... this is a real word) by interstellar UV radiation. Energetic photons from nearby bright stars decompose the gas bubble. Note the dim central blue star (a blue/white white dwarf). 



http://apod.nasa.gov/apod/ap030614.html - 
The Planetary Nebula Show 
Credit: Courtesy Adam Block (KPNO Visitor Program), NOAONSF
Explanation: What do the Owl, the Cat's Eye, the Ghost of Jupiter, and Saturn have in common? They're all planetary nebulae of course, glowing gaseous shrouds shed by dying sun-like stars as they run out of nuclear fuel. Beautiful to look at, the symmetric, planet-like shapes of these cosmic clouds, typically 1,000 times the size of our solar system, evoke their popular names. Flipping through digital pictures made by participants in the Kitt Peak National Observatory Visitor Center'sAdvanced Observing Program, astronomer Adam Block created this delightful animation. Ten different planetary nebula images are presented, each registered on the central star. In order, their catalog designations are NGC 1535NGC 3242 (Ghost of Jupiter), NGC 6543 (Cat's Eye), NGC 7009 (Saturn Nebula), NGC 2438,NGC 6772Abell 39NGC 7139NGC 6781, and M97 (Owl Nebula). This glorious final phase in the life of a star lasts only about 10,000 years. 






NGC 6709 é um aglomerado aberto na direção da constelação de Aquila. O objeto foi descoberto pelo astrônomo John Herschel em 1827, usando um telescópio refletor com abertura de 18,6 polegadas. Devido a sua moderada magnitude aparente (+6,7), é visível apenas com telescópiosamadores ou com equipamentos superiores.



http://pt.wikipedia.org/wiki/NGC_6709 - Author=Roberto Mura







NGC 6814 é uma galáxia espiral barrada (SBbc) localizada na direcção da constelação de Aquila. Possui uma declinação de -10° 19' 28" e uma ascensão recta de 19 horas, 42 minutos e 40,5 segundos.
A galáxia NGC 6814 foi descoberta em 2 de Agosto de 1788 por William Herschel.





Smith’s Cloud, a cloud of hydrogen gas in Aquila
Smith's Cloud, a cloud of hydrogen gas in Aquila
/Image Credit: Bill Saxton, NRAO/AUI/NSF
Smith’s Cloud is a huge cloud of hydrogen gas that measures some 9,800 light-years by 3,300 light-years, located between 36,000 and 45,000 light-years away from Earth in the northern constellation of Aquila (the Eagle). It has a mass of at least one million solar masses.



LDN 673, a dark cloud complex in Aquila
Lynds' Dark Nebula 673
Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://skycenter.arizona.edu/gallery/nebulae/LDN673)
LDN 673 (Lynds’ Dark Nebula 673) is a highly fractured and very dense dark cloud complex of about 7 light-years across, located in the center of the Aquila Rift, some 300 – 600 light-years from Earth in the northern constellation of Aquila (the Eagle).





The Manatee Nebula, a supernova remnant in Aquila
W50, SNR G039.7-02.0
http://annesastronomynews.com/annes-image-of-the-day-the-manatee-nebula/#.UpIBF8CZ_Zk.facebook


Image Credits: NRAO/AUI/NSF, K. Golap, M. Goss; NASA’s Wide Field Survey Explorer (WISE)
The Manatee Nebula (also known as W50 or SNR G039.7-02.0) is a supernova remnant of nearly 700 light-years across, located about 18,000 light-years away from Earth in the northern constellation of Aquila (the Eagle).





W40, a stellar nursery in Aquila
Sh2-64, RCW 174
Image Credits: ESA and the SPIRE & PACS consortia, Ph. André (CEA Saclay) for the Gould’s Belt Key Programme Consortia
W40 (also known as Sh2-64 and RCW 174) is a stellar nursery of some 25 light-years across, located between 1,000 and 2,000 light years-away from Earth in the northern constellation of Aquila (the Eagle) close to the border with Serpens Cauda (Serpent’s Tail).



Aquila
http://www.aradergalleries.com/detail.php?id=3615






http://www.walldesk.net/wallpaper/wallpapers-birds-aguias.asp?f=1059






Os desenhos formados pelas estrelas são como janelas que se abrem para a infinitude do universo e que possibilitam nossa mente a ir percebendo que existe mais, bem mais, entre o céu e a terra...; bem como percebendo que o caos, vagarosamente, vai se tornando Cosmos e sendo por nossa mente conscientizado.  

Quer dizer, nossa mente é tão infinita quanto infinito é o Cosmos.

COM UM ABRAÇO ESTRELADO,
Janine Milward

Visite meu Trabalho
em
DA TERRA AO CÉU E AO INFINITO
http://daterraaoceueaoinfinito.blogspot.com.br/