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Description

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i recommend downloading to see all detail. also, large file size, sorry if it takes long.

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finally finished something! been working on this one for about a month, finally got around to finishing it! i'm so sorry for the very long absence in artwork from me, been busy with work, working out and just life in general. still have a lot of works pending completion, you guys should see them soon.
so here i did an artistic rendition of the newly discovered planet, Gliese 832c. i'm sure many of you have heard about it as it gained a lot of media coverage. but here you should some more data and info into the planet, with a realistic rendition of what it may look like.

you can find out more here:
phl.upr.edu/press-releases/gli…

so please let your eyes enjoy and leave any comments, favs or critiques, which are always welcome and appreciated!
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Gliese 832c

constellation: ................... Grus
distance from earth: .......... 16.16 ly
star's name: ..................... Gliese 832
star's type: ....................... M1.5V
star's mass: ...................... 0.45 solar masses
star's radius: ..................... 0.48 solar radii
star's luminosity: .............. 0.035 solar luminosities
star's temperature: ........... 3,620 Kelvin
system's name: ................. Gliese 832
# stars in system: .............. 1
# planets in system: .......... 2
system's age: ..................... unknown

planet's status: ................. confirmed
planet's name: .................. Gliese 832c
habitability class: .............. M - Warm Superterran
thermal class: .................... Meso Planet
earth similarity index: ....... 0.81

planet's radius: ................ 1.69 earth radii, assuming a rocky composition.
planet's mass: .................. 5.40 earth masses, may be higher.
planet's density: ............... 1.119 earth densities = 6.171 g/cc
surface gravity: ................ 1.891 earth gravity, assuming a rocky composition.
rotation period: ................ most likely tidally locked.
atm. comp.: ...................... unknown, may have a high concentration of hydrogen and helium.
atm. pressure: .................. unknown, may be very high due to planet's large mass.
average eq. temp: ............. 253 Kelvin = - 20 Celsius
average surface temp: ....... unknown, may be 295 Kelvin = 22 Celsius, assuming a similar green house effect to earth.
# satellites: ....................... unknown, is unlikely to have any.

orbital eccentricity: ............ 0.18
orbital distance: ................. 0.166 au
year: .................................. 35.7 earth days
place in system: ................. near the inner edge of the conservative habitable zone.

Description

Gliese 832c is the closest planet in orbit around its parent star Gliese 832. The planet is unique as it orbits within its star's habitable zone, which is the distance away from a star where liquid water may exist on a planet on moon's surface giving the right conditions. The system is located roughly 16 light years away in the constellation of Grus. This places the system at our metaphorical door step and as one of the closest known systems to have a potentially habitable planet. The planet was discovered via the radial velocity method which detects planets by measuring the slight wobble their orbits induce on the star and from this, astronomers are capable of measuring the planet's mass and orbital properties.

The planet is relatively small and so the radial velocity method was only capable of putting a lower bound on the planet's mass of 5.40 earth masses. Planets of this size are described as super-Earths and Gliese 832c could be one of them assuming it has a rocky compostion. If indeed the planet has a rocky composition, it may have a radius of 1.69 earth radii, with 1.89 times the gravity of earth. This high gravity is likely to have held a dense atmosphere onto the planet with the possibly of a large volume of hydrogen and helium gas. This dense atmosphere may raise the planet's surface temperature to very high levels making it uninhabitable and more reminiscent of the planet Venus in our solar system, rendering the planet a super-Venus.

The planet's orbit places it at the inner edge of the star's conservative habitable zone and so it receives similar levels of irradiance from it's star as earth does from the sun. However, due to the small size of the star, the planet must orbit much closer to it to receive the same level of irradiance as earth. This puts the planet at risk of becoming tidally locked to the star where one side of the planet is locked in an eternal day and the other in an eternal night. It is highly likely that Gliese 832c is indeed tidally locked to the star, but due to the likely hood of it having a very dense atmosphere, heat would be evenly distributed from the dayside to the night side keeping the planetary surface temperature roughly even and preventing the atmosphere from freezing out on the night side. If the planet also has deep oceans, the water would help act as a transport mechanism for the heat and distribute it to the night side, keeping it from freezing over.
The planet also has an eccentric orbit, this would create eccentricity induced seasons similar to that of planet Mars in our solar system. These seasons would help to vary the surface temperature allowing for various environs for life to emerge and evolve. But because the eccentricity is high, the planet would experience wild temperature swings that can be stressful to life on the planet. Again, oceans can help with this problem as they would evenly distribute the heat around the planet and maintain a relatively stable temperature.

The planet has a high mass, and so logic dictates that it should have a system of moons. This however is unlikely as the planet is just too close to the star to support any moons with stable long-term orbits. Coupled with the possibility of the planet being tidally locked, any moons would spiral into the planet due to orbital decay by tidal decceleration.

While the planet may be larger than earth and possibly quite different, the system in which it resides appears to be a smaller version of our very own. Their is a large jovian sized planet located further away from the star than the inner planet. This configuration led astronomers to the assumption that it has a similar structure to our own, with small rocky planets on close short orbits and large gaseous planets on wide long orbits.
The presence of this large jovian sized planet is also a good sign as it may have played the same role as Jupiter did in Earth's early history by bombarding the planet with water rich asteroids and comets to produce oceans.
__________________________________________________________________________________________

This Artwork is © 2014 Alpha-Element. ALL RIGHTS RESERVED. DO NOT USE THIS ARTWORK!

Description

_______________________________________________________________________________________

i recommend downloading to see all detail. also, large file size, sorry if it takes long.

__________________________________________________________________________________________

finally finished something! been working on this one for about a month, finally got around to finishing it! i'm so sorry for the very long absence in artwork from me, been busy with work, working out and just life in general. still have a lot of works pending completion, you guys should see them soon.
so here i did an artistic rendition of the newly discovered planet, Gliese 832c. i'm sure many of you have heard about it as it gained a lot of media coverage. but here you should some more data and info into the planet, with a realistic rendition of what it may look like.

you can find out more here:
phl.upr.edu/press-releases/gli…

so please let your eyes enjoy and leave any comments, favs or critiques, which are always welcome and appreciated!
________________________________________________________________________________________

Gliese 832c

constellation: ................... Grus
distance from earth: .......... 16.16 ly
star's name: ..................... Gliese 832
star's type: ....................... M1.5V
star's mass: ...................... 0.45 solar masses
star's radius: ..................... 0.48 solar radii
star's luminosity: .............. 0.035 solar luminosities
star's temperature: ........... 3,620 Kelvin
system's name: ................. Gliese 832
# stars in system: .............. 1
# planets in system: .......... 2
system's age: ..................... unknown

planet's status: ................. confirmed
planet's name: .................. Gliese 832c
habitability class: .............. M - Warm Superterran
thermal class: .................... Meso Planet
earth similarity index: ....... 0.81

planet's radius: ................ 1.69 earth radii, assuming a rocky composition.
planet's mass: .................. 5.40 earth masses, may be higher.
planet's density: ............... 1.119 earth densities = 6.171 g/cc
surface gravity: ................ 1.891 earth gravity, assuming a rocky composition.
rotation period: ................ most likely tidally locked.
atm. comp.: ...................... unknown, may have a high concentration of hydrogen and helium.
atm. pressure: .................. unknown, may be very high due to planet's large mass.
average eq. temp: ............. 253 Kelvin = - 20 Celsius
average surface temp: ....... unknown, may be 295 Kelvin = 22 Celsius, assuming a similar green house effect to earth.
# satellites: ....................... unknown, is unlikely to have any.

orbital eccentricity: ............ 0.18
orbital distance: ................. 0.166 au
year: .................................. 35.7 earth days
place in system: ................. near the inner edge of the conservative habitable zone.

Description

Gliese 832c is the closest planet in orbit around its parent star Gliese 832. The planet is unique as it orbits within its star's habitable zone, which is the distance away from a star where liquid water may exist on a planet on moon's surface giving the right conditions. The system is located roughly 16 light years away in the constellation of Grus. This places the system at our metaphorical door step and as one of the closest known systems to have a potentially habitable planet. The planet was discovered via the radial velocity method which detects planets by measuring the slight wobble their orbits induce on the star and from this, astronomers are capable of measuring the planet's mass and orbital properties.

The planet is relatively small and so the radial velocity method was only capable of putting a lower bound on the planet's mass of 5.40 earth masses. Planets of this size are described as super-Earths and Gliese 832c could be one of them assuming it has a rocky compostion. If indeed the planet has a rocky composition, it may have a radius of 1.69 earth radii, with 1.89 times the gravity of earth. This high gravity is likely to have held a dense atmosphere onto the planet with the possibly of a large volume of hydrogen and helium gas. This dense atmosphere may raise the planet's surface temperature to very high levels making it uninhabitable and more reminiscent of the planet Venus in our solar system, rendering the planet a super-Venus.

The planet's orbit places it at the inner edge of the star's conservative habitable zone and so it receives similar levels of irradiance from it's star as earth does from the sun. However, due to the small size of the star, the planet must orbit much closer to it to receive the same level of irradiance as earth. This puts the planet at risk of becoming tidally locked to the star where one side of the planet is locked in an eternal day and the other in an eternal night. It is highly likely that Gliese 832c is indeed tidally locked to the star, but due to the likely hood of it having a very dense atmosphere, heat would be evenly distributed from the dayside to the night side keeping the planetary surface temperature roughly even and preventing the atmosphere from freezing out on the night side. If the planet also has deep oceans, the water would help act as a transport mechanism for the heat and distribute it to the night side, keeping it from freezing over.
The planet also has an eccentric orbit, this would create eccentricity induced seasons similar to that of planet Mars in our solar system. These seasons would help to vary the surface temperature allowing for various environs for life to emerge and evolve. But because the eccentricity is high, the planet would experience wild temperature swings that can be stressful to life on the planet. Again, oceans can help with this problem as they would evenly distribute the heat around the planet and maintain a relatively stable temperature.

The planet has a high mass, and so logic dictates that it should have a system of moons. This however is unlikely as the planet is just too close to the star to support any moons with stable long-term orbits. Coupled with the possibility of the planet being tidally locked, any moons would spiral into the planet due to orbital decay by tidal decceleration.

While the planet may be larger than earth and possibly quite different, the system in which it resides appears to be a smaller version of our very own. Their is a large jovian sized planet located further away from the star than the inner planet. This configuration led astronomers to the assumption that it has a similar structure to our own, with small rocky planets on close short orbits and large gaseous planets on wide long orbits.
The presence of this large jovian sized planet is also a good sign as it may have played the same role as Jupiter did in Earth's early history by bombarding the planet with water rich asteroids and comets to produce oceans.
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This Artwork is © 2014 Alpha-Element. ALL RIGHTS RESERVED. DO NOT USE THIS ARTWORK!