NASA spots the light of a ‘super-Earth’ While NASA’s Kepler mission has turned up plenty of evidence for planets in distant solar systems, the light from stars makes it very difficult to ‘see’ them. Now, in what the space agency is trumpeting as an important first, the Spitzer Space Telescope has detected the light emanating from a super-Earth planet called 55 Cancri …
See the term "super Earth" in my head, makes me think of a world far greater than Earth, a large awesome place where the Oceans are Badgers England Gold, the trees are made of chocolate logs, the animals wonder around ready cooked and invite you to feast on their tender flesh.
This just sounds like another crappy ball of super heated junk...
Surface gravity would be twice earth normal (difficult to move but not impossible) and as the planet is steam and water, some type of giant sauna loving life form would be highly likely to have evolved there......
I suggest an immediate trade mission with a boatload of towels.
Volume moves as cube of radius, so double volume means radius at a factor of cube root of 2, approx 1.25 times Earth's, and surface gravity is proportional to mass (8 X) over teh square of radius (approx 1.5). So yes, right second time, 5g is about right.
And 'super-earth' (used here) or 'Earth-like' (seen elsewhere to describe for example Gliese system planets) to describe a planet?? In my book, 'super-earth' means like earth, but larger, and 'Earth-like' means 'Earth-like'.
For 'Earth-Like' I would expect at least a solid surface, a temperature range close to that seen on earth (maybe -50 to 50 C), surface gravity from 0.5-2G . So this doesn't even fit the most basic criteria. After all, I wouldn't call Venus 'Earth-like'
The technique worked here, because a body heated to 2000K emits copious amounts of IR (and even visible radiation. Move an object of the same size to an orbit with a more hospitable (at least for us) 273-300K, or roughly 7 times cooler, the same surface emits 7^4 =2,401 times less radiation (or 8.5 magnitudes lower). That would make a super Earth at room temperature much harder to spot against the glare of the star.
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