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Possible Earthlike planet around closest star to the sun.
9 years ago
General
https://en.wikipedia.org/wiki/Proxima_Centauri_b
They have found a rocky planet, with in distance of a decade long probe journey, in its star's habitable zone.
I forgot to make a journal months ago, but this is amazing.
Star:
This star, Proxima Centauri, is only 4.2 light years away. It is in a triple star system.
It is not much bigger than Jupiter, small for even a red dwarf. Where most would blast it's closest planets with gamma rays, it only gives off x-rays. It is one eight the mass of the sun, but 40 times more dense and compact. This leaves it massive compared to Jupiter, but not even twice its size.
Where other planets that close are tidally locked (meaning a year is the same as a day) and usually have a molten side, the day-side on this world is possibly just warm enough for liquid water instead.
The two main stars are one-fifth of a light year from Proxima Centauri, but I think that is close enough for faint light on Proxima's night-side. Proxima A and Proxima B are two starts bigger and smaller than the sun respectively, orbiting each other far enough for each to have its own planetary system. That is not including planets that could orbit both of them.
The planet:
The planet is eight times closer to its star than Mercury is to ours. Though its star is so small, it only appears three times bigger than the sun would in our sky. It is from one plus a tenth to three times in possibly both the size and mass of earth for both of those estimates.
It has a year of 11 earth days, and most likely, its day is the same. This means only one side is facing towards it's sun at all times. This means that the day side is hot, the night side is frozen, and the band of twilight (called the terminator on any world) would be rather in between these two extremes.
The radation blast from it's sun means that either life there is adapted to it, is under ground, or lives on or under the perpetual band of twilight.
And as a random astronomy fact from our own solar system: you can see a cresent Venus when the planet is at its closest to Earth. I might of done so once before.
They have found a rocky planet, with in distance of a decade long probe journey, in its star's habitable zone.
I forgot to make a journal months ago, but this is amazing.
Star:
This star, Proxima Centauri, is only 4.2 light years away. It is in a triple star system.
It is not much bigger than Jupiter, small for even a red dwarf. Where most would blast it's closest planets with gamma rays, it only gives off x-rays. It is one eight the mass of the sun, but 40 times more dense and compact. This leaves it massive compared to Jupiter, but not even twice its size.
Where other planets that close are tidally locked (meaning a year is the same as a day) and usually have a molten side, the day-side on this world is possibly just warm enough for liquid water instead.
The two main stars are one-fifth of a light year from Proxima Centauri, but I think that is close enough for faint light on Proxima's night-side. Proxima A and Proxima B are two starts bigger and smaller than the sun respectively, orbiting each other far enough for each to have its own planetary system. That is not including planets that could orbit both of them.
The planet:
The planet is eight times closer to its star than Mercury is to ours. Though its star is so small, it only appears three times bigger than the sun would in our sky. It is from one plus a tenth to three times in possibly both the size and mass of earth for both of those estimates.
It has a year of 11 earth days, and most likely, its day is the same. This means only one side is facing towards it's sun at all times. This means that the day side is hot, the night side is frozen, and the band of twilight (called the terminator on any world) would be rather in between these two extremes.
The radation blast from it's sun means that either life there is adapted to it, is under ground, or lives on or under the perpetual band of twilight.
And as a random astronomy fact from our own solar system: you can see a cresent Venus when the planet is at its closest to Earth. I might of done so once before.
Aramos
~aramos
i dont understand all but that sounds cool :o
Zavvnao
~zavvnao
OP
Sorry for the info dump. It just means there is an alien plahet w3 could see up close in a human lifetime.
Aramos
~aramos
cool ^-^
Serith Abrasoka
~codark2
I heard about this a while back myself
Zavvnao
~zavvnao
OP
Nice to hear from you. I hope I did not get too out of context or technical with this.
