Posted on 08/06/2021 1:16:55 PM PDT by BenLurkin
[O]n August 5, 2021, astronomers said they’ve found a distant planetary system that has intriguing similarities to our sun’s inner solar system. One of the planets is about half the mass of Venus... Another could have oceans. And there might be yet another rocky world in this system’s habitable zone.
The host star, L 98-59, is only 35 light-years away. It has at least four confirmed rocky planets and possibly a fifth. That’s similar to our solar system’s rocky worlds (Mercury, Venus, Earth, Mars). But, in the L 98-59 system, the distance scales are different. And, by the way, all the known planets of L 98-59 are categorized as super-Earths. That means they’re rocky worlds larger in size than Earth, but smaller than Neptune.
The innermost planet, L 98-59b, is only about half the mass of Venus. It’s the lightest exoplanet found so far using the radial velocity method. That technique measures the tiny “wobble” of a star caused by the gravitational tug of unseen orbiting planets.... Its mass is only 1.01 times that of Earth, so very, very similar. It orbits its star in only 2.3 days, though!
The second planet is labeled L 98-59c. Its mass is 2.42 times that of Earth, and it orbits in 2.7 days.
The third planet is ...labeled L 98-59d. The researchers have calculated that up to 30% of this world’s mass is likely water. If so, it’s an ocean world. It’s not known yet how similar L 98-59d might be to Earth in terms of its oceans.... This planet has a mass 2.31 times Earth’s. It orbits its star in 7.5 days.
The newest-known planet in this system is the fourth planet, L 98-59e. It has a mass 3.06 times that of Earth and orbits its star in 12.796 days.
(Excerpt) Read more at earthsky.org ...
I think its time to coin a new phrase.
We have ‘fear porn’ with covid.
This stuff is ‘astronomical porn’
Really big imaginations at work again.
>> And, by the way, all the known planets of L 98-59 are categorized as super-Earths.<<
Krypton has been found
Does it have leftistts? ‘Cause if it has leftists, I ain’t goin’.
The innermost planet, L 98-59b, is only about half the mass of Venus. It’s the lightest exoplanet found so far using the radial velocity method. That technique measures the tiny “wobble” of a star caused by the gravitational tug of unseen orbiting planets.... Its mass is only 1.01 times that of Earth [...]
Venus has a mass less than that of Earth, so a planet less than half the mass of Venus would also be less massive than Earth, so something is wrong here.
Perhaps the comparison in mass should not be with Venus, but rather with another planet (the seventh)?
Regards,
So as far as we know, the star may have already exploded and destroyed the planet.
So our farthest probe is travelling at about 50000 mph and is less than one light day away after 40 years.
So, do the math on a 35 light year journey.
Gonna need to figure out warp drive.
“…all the known planets of L 98-59 are…larger in size than Earth..”
“….L 98-59b, is only…half the mass of Venus.”
I’m no Astro-physicist, but something doesn’t add up here:
Venus is smaller than Earth.
It’s only two hundred five trillion, seven hundred fifty one billion, eight hundred seventy five million, miles, give or take a few. Why it’s right in our backyard universally speaking. Maybe I’ll look up the star in “The star registry”.
Its a red dwarf I believe, they can go for hundreds of billions of years before they die and I don’t think they nova either, they’re to small.
Better start packing now.
We can expect red dwarf Robert Reich to hang around and torture people for billions more years?
They all sound tidal locked to their sun, and either blasted on one side by heat and radiation, and near absolute zero on the “dark” side.
Red Dwarf Robert Reich. That is hilarious, hat tip to alstewartfan
It is an M type star. A tiny ruddy red runt. For any planet that is actually close enough to get enough heat for life it is also so close it would occasionally get whipped with solar flares.
Yep, tidal locked and the solar flares that red dwarfs unleash make them very bad candidates in the search for ET life. The fact is, so far, Earth’s solar system is looking like a very rare and special place when compared with all the other solar systems we’ve found thus far.
If we were to take the worst future projection of the AGW scare, and miracoulosely find a palnet with that climate, why would we want to send the time and effort to get there? Staying home and dealing with what we have makes more sense.
None of these planets are anywhere close to what the post climate change earth presents. It is unlikely we will ever find one and Mars is definitely not it.
Yep, red dwarf. Meaning, it’s a flare star, roasting the planets with radiation and electromagnetic surges. Also, the planets orbit so closely, they’re tidally locked to the star. One side is like a hot oven, the other side a frozen wasteland.
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