| Piú viste - Messier Objects |
M-017-HST.jpgM 17 - deep inside the "Omega Nebula" - HST139 visite"...Omne ignotum pro magnifico est..."
(Tacito)
"...Ogni cosa che ci è ignota viene (sovente) ritenuta splendida..."
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M-016-3.jpgM 16 - The "Eagle Nebula" (detail mgnf) - possible Star Nursery - HST137 visite"...Discite, o miseri, et causas cognoscite rerum,
Quid sumus et quidnam victuri gignimur..."
(Persio)
"...Imparate, o uomini, la causa delle cose, quello che siamo, perchè nasciamo e perchè viviamo..."
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M-101-4.jpgM 101 - Spiral Galaxy136 visite"...Dominum mundi flectere vota valent..."
(Marziale)
"...Le preghiere degli uomini possono piegare gli Dei..."
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M-008-93.jpgM 8 - The "Lagoon Nebula"135 visite"...Certe cose che una generezione considera lusso, per la generazione successiva sono necessità..."
Anthony Crosland
MareKromium
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Messier_074-PIA13376.jpgM 74 - Spiral Galaxy, the Asteroid 3540 Protesilaos and an unsual resemblance...135 visiteCaption NASA:"It's a bird! It's a plane! Nope, it's an Asteroid tracking its way across the sky with a beautiful Spiral Galaxy in the background. In the center of this new mosaic image captured by NASA's Wide-field Infrared Survey Explorer (WISE) is the galaxy Messier 74, with its spiral arms seen face-on. The bright reddish object moving across the lower right part of the image is the much closer asteroid 3540 Protesilaos, seen at different points in its orbit around the Sun. WISE observed and detected this previously known Asteroid a total of ten times, although only a few of those frames were used in this mosaic.
Also known as NGC 628, the Messier 74 Galaxy is between 24,5 and 36 Million Light-Years away, and has a diameter of about 100.000 LY.
It is suspected to have a Black Hole at its center, with a mass equal to 10.000 Suns. It is one of only a handful of known Black Holes with masses intermediate between the relatively smaller ones that form from collapsing stars and the supermassive Black Holes millions of times more massive than the Sun, which are more typically found at the centers of Galaxies.
Although it is called a Messier Object, Messier 74 was actually discovered by Pierre Mechain in 1780, who then told his friend Charles Messier about it. As one of the dimmest of all Messier objects, this Galaxy is a challenge for amateur astronomers to see in Visible Light, but the WISE cameras captured it clearly in InfraRed Light.
The colors used in this image represent different wavelengths of IR Radiation. Blue and cyan represent light at 3,4 and 4,6 microns, respectively. These colors show both nearby stars inside the Milky Way Galaxy and the combined light of billions of stars that make up Messier 74. Green and red represent light from 12 and 22 microns, respectively. These colors show light from cooler objects and material. Dust in star-forming regions in Messier 74 traces its spiral structure. The coolest object in the picture is the asteroid 3540 Protesilaos.
This Asteroid was first seen in 1973 by the German astronomer Freimut Börngen, who discovered more than 500 Asteroids while he was researching galaxies. At the time that WISE observed 3540 Protesilaos, it was at a distance of about 772 MKM from Earth (approx. 480 million miles, or also approx. 43 Light-Minutes). It is classified as a Jupiter Trojan Minor Planet, which are small rocky bodies that share the same orbit around the Sun as the planet Jupiter. Based on the infrared observations, the WISE team estimates the Asteroid to be about 90 Km (approx. 56 miles) across and to reflect only a few percent of the light that lands on it, which makes it about as dark as coal.
By convention, Trojan Asteroids are named after the heroes from the Trojan War. In this case, asteroid 3540 is named after the hero Protesilaos. According to Greek Mythology, Protesilaos was the first Greek to set foot on Trojan land during the war.
Unfortunately for him, there was a prophecy that the first soldier in the war to step onto land from a battle ship would die. The prophecy quickly came true and Protesilaos was killed.
JPL manages the Wide-field Infrared Survey Explorer for NASA's Science Mission Directorate, Washington. The principal investigator, Edward Wright, is at UCLA. The mission was competitively selected under NASA's Explorers Program managed by the Goddard Space Flight Center, Greenbelt, Md. The science instrument was built by the Space Dynamics Laboratory, Logan, Utah, and the spacecraft was built by Ball Aerospace & Technologies Corp., Boulder, Colo. Science operations and data processing take place at the Infrared Processing and Analysis Center at the California Institute of Technology in Pasadena. Caltech manages JPL for NASA. More information is online at http://www.nasa.gov/wise and http://wise.astro.ucla.edu".MareKromium
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M-016-98.jpgM 16 - Gaseous Pillars inside the "Eagle Nebula" - HST132 visite"...Felix qui potuit rerum cognoscere causas..."
(Virgilio)
"...Felice è colui che può (è capace di/riesce a) capire il perchè delle cose..."
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M-045-2.JPGM 45 - "The 7 Sisters" - Open Star Cluster in Pleiades (2)132 visite"...Cosa c'è? Ti vedo irrequieto...Hai visto qualcosa?"
"...Non saprei, ma mi è sembrato che qualcuno ci stesse spiando. Ho visto qualcosa muoversi, dietro le Pleiadi..."
P. C. Floegers - "Conversations"
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M-057-2.jpgM 57 - The "Ring Nebula" in Lyrae132 visite"...Se durante questa Vita non dovessi incontrarti, fa che almeno senta la Tua mancanza..."
(dal film "La sottile linea rossa")
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M-020-7.jpgM 20 - different views of the "Trifid Nebula" - SST132 visite"...Ubi non est Pudor,
Nec cura Iuris, Pietas, Fides,
Instabile regnum est..."
(Seneca)
"...Il Regno in cui manchi il Pudore, la Certezza del Diritto, la Pietà (e) la Fede è (in verità) un Regno effimero..."
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M-051-9.jpgThe "X" core of M 51 or the "CATS" Musical logo?131 visite"...Le atrocità, in guerra, vengono commesse da tutti, su ogni campo di battaglia e - il più delle volte - dietro le linee di fuoco.
Le atrocità, in guerra, vengono commesse da tutti e non è possibile dar loro un "peso".
Non è possibile "fare una graduatoria" delle atrocità, dividendo quelle che appaiono "più" orribili da quelle che appaiono "meno" orribili: chi mai, infatti, potrebbe assumersi - ed esserne degno e capace - l'incarico di pesare il sangue, il dolore, la sofferenza interiore, la perdita di dignità e la morte?
Tuttavia, come ben sapete, la Storia non si scrive da sè: la Storia la scrivono i Vincitori, sempre.
E da sempre.
Dunque le atrocità commesse dai Vincitori, qualora non vengano - diciamo così... - "elegantemente oscurate", possono diventare 'Atti di Eroismo' o, nella più realistica delle ipotesi, 'pagine oscure, tristi, ma necessarie'.
D'altra parte, invece, le atrocità commesse dai Perdenti, restano atrocità...".
P.C. Floegers - "Conversations"
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M-102-1.jpgM 102 - "Enygma" (the most mysterious Messier object)129 visite"...Nihil rerum humanarum sine Deorum numine geritur..."
(Cornelio)
"...Nessuna umana impresa può compiersi senza l'aiuto degli Dei..."
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M-045-4.jpgM 45 and April's Moon128 visite"Ignoranti quem portum petat, nullus suus ventus est"
(Seneca)
"Le navi degli indecisi non hanno mai il vento a favore"
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