| Ultimi arrivi - SOLAR SYSTEM |
162173-Ryugu-006.jpg162173 Ryugu93 visite...ma non Vi sembra di aver gi visto qualcosa del genere?!?... Osservate BENE!!!...MareKromium%21 %665 %2020
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162173-Ryugu-020.png162173 Ryugu - Orbital Pattern120 visiteNella Nomenclatura Ufficiale, 162173 Ryugu un Asteroide appartenente alla cosiddetta "Classe Apollo" (ossia una serie di Asteroidi prossimi alla Terra - Near-Earth - caratterizzati da un'orbita avente un Semiasse Maggiore superiore ad una U.A. - Unit Astronomica, e cio la distanza media fra la Terra ed il Sole, vale a dire circa 150 MKM) ed un Perielio inferiore ad 1,017 U.A.
Scoperto nell'AD 1999, Ryugo presenta un'orbita caratterizzata da un Semiasse Maggiore pari a 1,189 U.A. e da un'eccentricit di 0,190, inclinata di 5,88405 rispetto all'Eclittica.
Le sue caratteristiche orbitali lo qualificano come "oggetto potenzialmente pericoloso" per la Terra ed esso stato selezionato come obiettivo della missione Hayabusa 2 della JAXA, la quale prevede di recuperare alcuni campioni dall'Asteroide e riportarli sulla Terra. MareKromium%21 %664 %2020
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Neptune-PIA21629.jpgNeptune from the Saturnian Sky (Natural Colors; credits: NASA/JPL-Caltech/Space Science Institute)117 visiteCaption NASA:"On August 25, 1989, NASA's Voyager 2 made its historic Fly-By of Neptune and its largest moon, Triton. The Cassini Spacecraft took this image to celebrate the anniversary of that event.
Neptune appears in this Natural Color composite as a pale blue disk (similar to Cassini's image of Uranus from 2014), just below and to the right of image center. Most of the faint specks in the image are background stars, although some are likely Cosmic Rays (charged particles that strike the camera detector).
By imaging Neptune, Cassini's Solar System family portrait-taking is complete. The Mission's Planetary Photojournal includes all of the major Planets except Mercury, which is too close to the Sun to be imaged, as well as dwarf planet Pluto.
This view was acquired by the Cassini narrow-angle camera on Aug. 10, 2017, at a distance of approximately 2,72 Billion Miles (such as approx. 4,38 BKM) from Neptune. Red, blue and green filter images were combined to create this Natural Color image".MareKromium%20 %714 %2020
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ZZZ-Mercury-PIA19448.jpgFarewell Messenger!....127 visiteCaption NASA:"Originally planned to orbit Mercury for one year, the mission exceeded all expectations, lasting for over four years and acquiring extensive datasets with its seven scientific instruments and radio science investigation. This afternoon, the Spacecraft succumbed to the pull of Solar Gravity and impacted Mercury's Surface.
The image shown here is the last one acquired and transmitted back to Earth by the mission. The image is located within the Floor of the roughly 93-Km-diameter Impact Crater named "Jokai". The Spacecraft struck the Planet just north of Shakespeare Basin".
Date acquired: April 30, 2015
Image Mission Elapsed Time (MET): 72716050
Image ID: 8422953
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 72,0 North
Center Longitude: 223,8 East
Resolution: 2,1 meters/pixel
Scale: This image is about 1 Km across
Solar Incidence Angle: 57,9 (meaning that the Sun was 32,1 high on the Local Horizon)
Emission Angle: 56,5
Phase Angle: 40,7MareKromium%20 %579 %2020
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ZZZ-Mercury-PIA19445.jpgReady to say "Farewell"....92 visiteCaption NASA:"This image, acquired on April, 29th, 2015, is one of MESSENGER's last. On April 30th, the Spacecraft will complete its highly successful orbital mission and impact the Surface of Mercury.
Impact was expected at 19:26:02 UTC (3:26:02 pm EDT) but will occur out of sight and communication with the Earth. The MESSENGER Team will try to establish communications with the Spacecraft when its orbit would allow it to be visible from Earth. The inability to establish communications between MESSENGER and the scheduled Earth-based tracking antenna will provide the first confirmation that the Spacecraft has impacted the Surface. After about 30 minutes following the predicted Mercury Impact Time, the Team plans to announce whether MESSENGER's orbital mission has come to an end".
Date acquired: April 29, 2015
Image Mission Elapsed Time (MET): 72595737
Image ID: 8414772
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 69.46 North
Center Longitude: 229,49 East
Resolution: 1,7 meters/pixel
Scale: The largest crater in this image has a diameter of about 330 meters.MareKromium%20 %575 %2020
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ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-Pluto-PIA21863.jpgFlying over Pluto...68 visiteNote: the topographic reliefs visible here have been exaggerated by a factor of 2 to 3 to emphasize topography; the Surface colors have also been enhanced to bring out detail. Digital mapping and rendering were performed by Paul Schenk and John Blackwell of the Lunar and Planetary Institute in Houston".
MareKromium%20 %561 %2020
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ZZZ-Mercury-PIA19424.jpg84 visiteCaption NASA:"The MESSENGER Spacecraft sent this frame back to Earth after the it emerged from Superior Solar Conjunction, when the communication is largely blocked by the Sun. This is one of our last views of Mercury from MESSENGER. Featured here is the Ejecta Blanket of a (relatively) fresh Unnamed Impact Crater located just outside the scene. Ejecta scoured the Surface leaving behind beautiful patterns of Secondary Impact Craters".
Date acquired: April 16, 2015
Image Mission Elapsed Time (MET): 71544702
Image ID: 8343072
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 55,67 North
Center Longitude: 97,37 East
Resolution: 19,9 meters/pixel
Scale: This scene is approximately 20 Km acrossMareKromium%20 %554 %2020
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ZZ-Mercury-Terminator-PIA10937-1.jpgNorthern Latitudes and a possible Orbital Anomaly (EDM - Enhanced Natural Colors; credits for the add. process. and color.: Dr Paolo C. Fienga)) 120 visiteRaggio Cosmico, senza dubbi.MareKromium%06 %452 %2020
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Tethys-PIA09915-1.jpgShall Odysseus ever find Ithaca? (Stretched Absolute Natural Colors; credits for the add. process.: Dr Paolo C. Fienga-LXTT-IPF)134 visiteCaption NASA:"From a highly inclined orbit, the Cassini Spacecraft looks toward far Northern Latitudes on Tethys.
Here, the spacecraft was above a position about 45 North of the moon's Equator.
This vantage point afforded a view of the moon's three most recognizable features: the Ithaca Chasma Canyon System (at lower right), Odysseus Crater (at upper left) and the Equatorial Band of Darker Terrain (at lower left).
Lit terrain seen here is on the Leading Hemisphere of Tethys (1062 Km, or approx. 660 miles across). North is up.
The image was taken in Visible Light with the NASA - Cassini Spacecraft narrow-angle camera on April 29, 2008.
The view was obtained at a distance of approx. 991.000 Km (such as about 616.000 miles) from Tethys and at Phase Angle of 73.
Image scale is roughly 6 Km (about 4 miles) per pixel".MareKromium%03 %712 %2020
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ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-Nix-O.jpgCrescent Nix155 visitenessun commentoMareKromium%25 %741 %2019
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ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-Pluto03-Tartarus_Dorsa.pngTartarus Dorsa159 visiteDa notare la stranissima (apparentemente) Texture e la direzionalit di questa imponente Catena Montuosa Plutoniana. Davvero suggestiva...MareKromium%25 %734 %2019
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Comet_Borisov_-_GIF_3.gifFrom far away: the Comet Borisov through the Solar System (GIF-Movie)279 visiteGuardate bene! EccoVi la differenza (REALE ed IN FATTO) tra un Fly-By and uno Swing-By...E senza dimenticare "Oumuamua"!
As the first known object of its type, Oumuamua presented a unique case for the International Astronomical Union (IAU, for short), which assigns designations for astronomical objects. Originally classified as comet C/2017 U1, it was later reclassified as Asteroid A/2017 U1, due to the absence of a coma (--> "Chioma", in Italian).
Once it was unambiguously identified as coming from outside the Solar System, a new designation was created.
The name comes from the Hawaiian word "oumuamua", meaning 'scout' (from ou, meaning 'reach out for', and mua, reduplicated for emphasis, meaning 'first, in advance of', and reflects the way this object is like a scout or messenger sent from the distant past to reach out to Humanity.
It roughly translates to 'first distant messenger' (or "The First Messenger from the distance").
Before the official name was decided upon, the name "Rama" was suggested by the name given to an Alien Spacecraft discovered under similar circumstances in the 1973 science fiction novel "Rendezvous with Rama", by Sir Arthur C. Clarke.MareKromium%10 %651 %2019
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