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| Ultimi commenti - Venus |
0-Venus.jpgVenus from Mariner 10176 visiteVenus Data and Statistics
Mass (kg) = 4.869e+24
Mass (Earth = 1) = 81476
Equatorial radius = 6.051,8 Km
Equatorial radius (Earth = 1) = 0,94886
Mean density (gm/cm^3) = 5,25
Mean distance from the Sun = 108.200.000 Km
Mean distance from the Sun (Earth = 1) = 0,7233
Rotational period (days) = 243,0187
Orbital period (days) = 224,701
Mean orbital velocity = 35,02 Km per second
Tilt of axis = 177,36°
Orbital inclination = 3,394°
Equatorial surface gravity (m/sec^2) = 8,87
Equatorial escape velocity = 10,36 Km per second
Magnitude (Vo) = - 4,4
Mean surface temperature = + 482°C
Atmospheric pressure (bars) = 92
Atmospheric composition: Carbon dioxide 96%, Nitrogen 3% and trace amounts of: Sulfur dioxide, water vapor, carbon monoxide, argon, helium, neon, hydrogen chloride and hydrogen fluoride.04/29/13 at 07:33Anakin: Mare, vuoi dire che questi colori, rispetto all...
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Venus-Mariner_10.jpgVenus, from Mariner 10 (Natural Colors; credits: NASA/JPL)103 visitenessun commentoMareKromium04/28/13 at 10:10MareKromium: Guardate che qualit? di immagine e di colori (erav...
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Craters-Unnamed_Complex_Crater-PIA00462-PCF-LXTT-IPF.jpgUnnamed Complex Crater (Possible Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)82 visiteThe NASA - Magellan Spacecraft imaged this multiple-Floored, highly Irregular Impact Crater at Latitude 16,4° North and Longitude 352,1° East, during its 481st and 482nd orbits around the Planet Venus (on Earth, it was September, 27, 1990). This Impact Crater, about 9,2 Km (such as approx. 5,7 miles) in maximum diameter, was formed on what appears to be a slightly fractured, radar-dark (---> smooth) Venusian Plain. The abundant, low viscosity Flows associated with this Impact Event have, however, filled local Fault-controlled Troughs (---> Graben). These shallow Grabens are well portrayed on this Magellan image but they would have been unrecognizable if they had not (coincidentally) been infillled by the radar-bright Crater Flows.
This fortuitous enhancement by the Crater Flows - of Fault Structures - that were below the resolution capacity of the Magellan Synthetic Aperture Radar provided the Magellan Science Team with valuable Geologic information. For instance, the Flow Deposits from this Impact Crater are now thought to consist - primarily - of "Shock Melted Rock" (---> such as a remarkable quantity of almost liquid rocky material that got pushed away and outwards by the powerful shock-wave/s that followed the original Impact Event/s) and Fragmented Debris resulting from the nearly simultaneous impacts of 2 (two) projectile fragments into the hot (---> approx. 426° Celsius - or about 800 degrees Farheneit) Surface Rocks of Venus. On the other hand, the presence of various Floors in this highly Irregular Impact Crater is interpreted to be the result of Crushing, Fragmentation, and eventual Aerodynamic Dispersion of a single entry projectile (---> meteor) during its passage through the dense Venusian Atmosphere.
This frame (which is an Original NASA - Magellan Spacecraft Radio-Image published on the NASA - Planetary Photojournal with the n. PIA 00462), since it is just a Radio-Image of the Venusian Surface and NOT a real view of it, has been colorized, according to an educated guess carried out by Dr Paolo C. Fienga (LXTT-IPF), in what they could reasonably be its possible Absolute Natural Colors (such as the colors that a human eye would perceive if someone were onboard the NASA - Magellan Spacecraft and, once the thick layer of Venusian Clouds and Fogs is completely overcome, looked down, towards the Surface of Venus itself), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.MareKromium03/24/13 at 15:46paolocf1963: E' vero: se un oggetto si trova al suolo e, so...
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Craters-Unnamed_Complex_Crater-PIA00462-PCF-LXTT-IPF.jpgUnnamed Complex Crater (Possible Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)82 visiteThe NASA - Magellan Spacecraft imaged this multiple-Floored, highly Irregular Impact Crater at Latitude 16,4° North and Longitude 352,1° East, during its 481st and 482nd orbits around the Planet Venus (on Earth, it was September, 27, 1990). This Impact Crater, about 9,2 Km (such as approx. 5,7 miles) in maximum diameter, was formed on what appears to be a slightly fractured, radar-dark (---> smooth) Venusian Plain. The abundant, low viscosity Flows associated with this Impact Event have, however, filled local Fault-controlled Troughs (---> Graben). These shallow Grabens are well portrayed on this Magellan image but they would have been unrecognizable if they had not (coincidentally) been infillled by the radar-bright Crater Flows.
This fortuitous enhancement by the Crater Flows - of Fault Structures - that were below the resolution capacity of the Magellan Synthetic Aperture Radar provided the Magellan Science Team with valuable Geologic information. For instance, the Flow Deposits from this Impact Crater are now thought to consist - primarily - of "Shock Melted Rock" (---> such as a remarkable quantity of almost liquid rocky material that got pushed away and outwards by the powerful shock-wave/s that followed the original Impact Event/s) and Fragmented Debris resulting from the nearly simultaneous impacts of 2 (two) projectile fragments into the hot (---> approx. 426° Celsius - or about 800 degrees Farheneit) Surface Rocks of Venus. On the other hand, the presence of various Floors in this highly Irregular Impact Crater is interpreted to be the result of Crushing, Fragmentation, and eventual Aerodynamic Dispersion of a single entry projectile (---> meteor) during its passage through the dense Venusian Atmosphere.
This frame (which is an Original NASA - Magellan Spacecraft Radio-Image published on the NASA - Planetary Photojournal with the n. PIA 00462), since it is just a Radio-Image of the Venusian Surface and NOT a real view of it, has been colorized, according to an educated guess carried out by Dr Paolo C. Fienga (LXTT-IPF), in what they could reasonably be its possible Absolute Natural Colors (such as the colors that a human eye would perceive if someone were onboard the NASA - Magellan Spacecraft and, once the thick layer of Venusian Clouds and Fogs is completely overcome, looked down, towards the Surface of Venus itself), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.MareKromium03/24/13 at 14:17Ufologo: Ha subito un esplosione nucleare in quota mentre e...
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Craters-Unnamed_Complex_Crater-PIA00462-PCF-LXTT-IPF.jpgUnnamed Complex Crater (Possible Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)82 visiteThe NASA - Magellan Spacecraft imaged this multiple-Floored, highly Irregular Impact Crater at Latitude 16,4° North and Longitude 352,1° East, during its 481st and 482nd orbits around the Planet Venus (on Earth, it was September, 27, 1990). This Impact Crater, about 9,2 Km (such as approx. 5,7 miles) in maximum diameter, was formed on what appears to be a slightly fractured, radar-dark (---> smooth) Venusian Plain. The abundant, low viscosity Flows associated with this Impact Event have, however, filled local Fault-controlled Troughs (---> Graben). These shallow Grabens are well portrayed on this Magellan image but they would have been unrecognizable if they had not (coincidentally) been infillled by the radar-bright Crater Flows.
This fortuitous enhancement by the Crater Flows - of Fault Structures - that were below the resolution capacity of the Magellan Synthetic Aperture Radar provided the Magellan Science Team with valuable Geologic information. For instance, the Flow Deposits from this Impact Crater are now thought to consist - primarily - of "Shock Melted Rock" (---> such as a remarkable quantity of almost liquid rocky material that got pushed away and outwards by the powerful shock-wave/s that followed the original Impact Event/s) and Fragmented Debris resulting from the nearly simultaneous impacts of 2 (two) projectile fragments into the hot (---> approx. 426° Celsius - or about 800 degrees Farheneit) Surface Rocks of Venus. On the other hand, the presence of various Floors in this highly Irregular Impact Crater is interpreted to be the result of Crushing, Fragmentation, and eventual Aerodynamic Dispersion of a single entry projectile (---> meteor) during its passage through the dense Venusian Atmosphere.
This frame (which is an Original NASA - Magellan Spacecraft Radio-Image published on the NASA - Planetary Photojournal with the n. PIA 00462), since it is just a Radio-Image of the Venusian Surface and NOT a real view of it, has been colorized, according to an educated guess carried out by Dr Paolo C. Fienga (LXTT-IPF), in what they could reasonably be its possible Absolute Natural Colors (such as the colors that a human eye would perceive if someone were onboard the NASA - Magellan Spacecraft and, once the thick layer of Venusian Clouds and Fogs is completely overcome, looked down, towards the Surface of Venus itself), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.MareKromium03/24/13 at 10:24paolocf1963: Ci assomiglia davvero, bravi! paolo
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Craters-Unnamed_Complex_Crater-PIA00462-PCF-LXTT-IPF.jpgUnnamed Complex Crater (Possible Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)82 visiteThe NASA - Magellan Spacecraft imaged this multiple-Floored, highly Irregular Impact Crater at Latitude 16,4° North and Longitude 352,1° East, during its 481st and 482nd orbits around the Planet Venus (on Earth, it was September, 27, 1990). This Impact Crater, about 9,2 Km (such as approx. 5,7 miles) in maximum diameter, was formed on what appears to be a slightly fractured, radar-dark (---> smooth) Venusian Plain. The abundant, low viscosity Flows associated with this Impact Event have, however, filled local Fault-controlled Troughs (---> Graben). These shallow Grabens are well portrayed on this Magellan image but they would have been unrecognizable if they had not (coincidentally) been infillled by the radar-bright Crater Flows.
This fortuitous enhancement by the Crater Flows - of Fault Structures - that were below the resolution capacity of the Magellan Synthetic Aperture Radar provided the Magellan Science Team with valuable Geologic information. For instance, the Flow Deposits from this Impact Crater are now thought to consist - primarily - of "Shock Melted Rock" (---> such as a remarkable quantity of almost liquid rocky material that got pushed away and outwards by the powerful shock-wave/s that followed the original Impact Event/s) and Fragmented Debris resulting from the nearly simultaneous impacts of 2 (two) projectile fragments into the hot (---> approx. 426° Celsius - or about 800 degrees Farheneit) Surface Rocks of Venus. On the other hand, the presence of various Floors in this highly Irregular Impact Crater is interpreted to be the result of Crushing, Fragmentation, and eventual Aerodynamic Dispersion of a single entry projectile (---> meteor) during its passage through the dense Venusian Atmosphere.
This frame (which is an Original NASA - Magellan Spacecraft Radio-Image published on the NASA - Planetary Photojournal with the n. PIA 00462), since it is just a Radio-Image of the Venusian Surface and NOT a real view of it, has been colorized, according to an educated guess carried out by Dr Paolo C. Fienga (LXTT-IPF), in what they could reasonably be its possible Absolute Natural Colors (such as the colors that a human eye would perceive if someone were onboard the NASA - Magellan Spacecraft and, once the thick layer of Venusian Clouds and Fogs is completely overcome, looked down, towards the Surface of Venus itself), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.MareKromium03/24/13 at 07:49Ufologo: Vero! Ne è rimasta la ... traccia! ^_^
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Craters-Unnamed_Complex_Crater-PIA00462-PCF-LXTT-IPF.jpgUnnamed Complex Crater (Possible Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)82 visiteThe NASA - Magellan Spacecraft imaged this multiple-Floored, highly Irregular Impact Crater at Latitude 16,4° North and Longitude 352,1° East, during its 481st and 482nd orbits around the Planet Venus (on Earth, it was September, 27, 1990). This Impact Crater, about 9,2 Km (such as approx. 5,7 miles) in maximum diameter, was formed on what appears to be a slightly fractured, radar-dark (---> smooth) Venusian Plain. The abundant, low viscosity Flows associated with this Impact Event have, however, filled local Fault-controlled Troughs (---> Graben). These shallow Grabens are well portrayed on this Magellan image but they would have been unrecognizable if they had not (coincidentally) been infillled by the radar-bright Crater Flows.
This fortuitous enhancement by the Crater Flows - of Fault Structures - that were below the resolution capacity of the Magellan Synthetic Aperture Radar provided the Magellan Science Team with valuable Geologic information. For instance, the Flow Deposits from this Impact Crater are now thought to consist - primarily - of "Shock Melted Rock" (---> such as a remarkable quantity of almost liquid rocky material that got pushed away and outwards by the powerful shock-wave/s that followed the original Impact Event/s) and Fragmented Debris resulting from the nearly simultaneous impacts of 2 (two) projectile fragments into the hot (---> approx. 426° Celsius - or about 800 degrees Farheneit) Surface Rocks of Venus. On the other hand, the presence of various Floors in this highly Irregular Impact Crater is interpreted to be the result of Crushing, Fragmentation, and eventual Aerodynamic Dispersion of a single entry projectile (---> meteor) during its passage through the dense Venusian Atmosphere.
This frame (which is an Original NASA - Magellan Spacecraft Radio-Image published on the NASA - Planetary Photojournal with the n. PIA 00462), since it is just a Radio-Image of the Venusian Surface and NOT a real view of it, has been colorized, according to an educated guess carried out by Dr Paolo C. Fienga (LXTT-IPF), in what they could reasonably be its possible Absolute Natural Colors (such as the colors that a human eye would perceive if someone were onboard the NASA - Magellan Spacecraft and, once the thick layer of Venusian Clouds and Fogs is completely overcome, looked down, towards the Surface of Venus itself), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.MareKromium03/24/13 at 05:36AndreaGG: Ma è precipitata l'Enterprise? Eheheh
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Volcanoes-Sapas_Mons-02.jpgMagellan Probe: radio image of Sapas Mons Volcano (detail)140 visiteUna così rapida decisione di considerare persa la Sonda può lasciare sorpresi (basti pensare agli innumerevoli tentativi compiuti dai Tecnici NASA di ripristinare i contatti radio, per esempio, con il Mars Polar Lander oppure con la Sonda ESA "Beagle", prima di dichiarare la perdita delle Navicelle) e che cosa sia effettivamente accaduto a Magellano non lo sa nessuno, ma non è da escludere, tuttavia, che la rapidità adottata nel prendere questa decisione sia stata determinata, fra l'altro, in ragione dell'avvenuto conseguimento della (quasi) totalità degli scopi della Missione.10/05/12 at 15:32paolocf1963: Magari sapessi qualcosa di più! Magari...
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Volcanoes-Sapas_Mons-02.jpgMagellan Probe: radio image of Sapas Mons Volcano (detail)140 visiteUna così rapida decisione di considerare persa la Sonda può lasciare sorpresi (basti pensare agli innumerevoli tentativi compiuti dai Tecnici NASA di ripristinare i contatti radio, per esempio, con il Mars Polar Lander oppure con la Sonda ESA "Beagle", prima di dichiarare la perdita delle Navicelle) e che cosa sia effettivamente accaduto a Magellano non lo sa nessuno, ma non è da escludere, tuttavia, che la rapidità adottata nel prendere questa decisione sia stata determinata, fra l'altro, in ragione dell'avvenuto conseguimento della (quasi) totalità degli scopi della Missione.10/05/12 at 10:08Anakin: Avevo letto, non ricordo dove di questa storia di ...
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Volcanoes-Sapas_Mons-02.jpgMagellan Probe: radio image of Sapas Mons Volcano (detail)140 visiteUna così rapida decisione di considerare persa la Sonda può lasciare sorpresi (basti pensare agli innumerevoli tentativi compiuti dai Tecnici NASA di ripristinare i contatti radio, per esempio, con il Mars Polar Lander oppure con la Sonda ESA "Beagle", prima di dichiarare la perdita delle Navicelle) e che cosa sia effettivamente accaduto a Magellano non lo sa nessuno, ma non è da escludere, tuttavia, che la rapidità adottata nel prendere questa decisione sia stata determinata, fra l'altro, in ragione dell'avvenuto conseguimento della (quasi) totalità degli scopi della Missione.10/05/12 at 09:12paolocf1963: Si, avevi ragione. "Ufficialmente" lo ha...
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Volcanoes-Sapas_Mons-02.jpgMagellan Probe: radio image of Sapas Mons Volcano (detail)140 visiteUna così rapida decisione di considerare persa la Sonda può lasciare sorpresi (basti pensare agli innumerevoli tentativi compiuti dai Tecnici NASA di ripristinare i contatti radio, per esempio, con il Mars Polar Lander oppure con la Sonda ESA "Beagle", prima di dichiarare la perdita delle Navicelle) e che cosa sia effettivamente accaduto a Magellano non lo sa nessuno, ma non è da escludere, tuttavia, che la rapidità adottata nel prendere questa decisione sia stata determinata, fra l'altro, in ragione dell'avvenuto conseguimento della (quasi) totalità degli scopi della Missione.10/05/12 at 08:58Anakin: Ecco detto. Lo hanno fatto squagliare...
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Volcanoes-Sapas_Mons-02.jpgMagellan Probe: radio image of Sapas Mons Volcano (detail)140 visiteUna così rapida decisione di considerare persa la Sonda può lasciare sorpresi (basti pensare agli innumerevoli tentativi compiuti dai Tecnici NASA di ripristinare i contatti radio, per esempio, con il Mars Polar Lander oppure con la Sonda ESA "Beagle", prima di dichiarare la perdita delle Navicelle) e che cosa sia effettivamente accaduto a Magellano non lo sa nessuno, ma non è da escludere, tuttavia, che la rapidità adottata nel prendere questa decisione sia stata determinata, fra l'altro, in ragione dell'avvenuto conseguimento della (quasi) totalità degli scopi della Missione.10/05/12 at 08:42paolocf1963: On September 9, 1994, a press release outlined the...
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