Earth- exoplanet spotted just 72 light-years away

[Admin]

The newfound exoplanet K2-415b is not within the habitable zone of its red dwarf host star, but it could have a neighbor that is.

Earth- exoplanet spotted just 72 light-years away : Read more

 

[rod]

reference cited, An Earth-sized Planet around an M5 Dwarf Star at 22 pc, https://arxiv.org/abs/2302.00699, 01-Feb-2023.

My observation. Mean density 1.5769E+01 g cm^-3, escape velocity = 19.22156532 km/s, surface gravity compared to Earth = 2.9114E+00 so 100 lbs. on Earth would weigh some 291 lbs. on K2-415 B. While earth-size diameter, not likely earth-like and temperature 400 K.

 

[mikeash]

reference cited, An Earth-sized Planet around an M5 Dwarf Star at 22 pc, https://arxiv.org/abs/2302.00699, 01-Feb-2023.

My observation. Mean density 1.5769E+01 g cm^-3, escape velocity = 19.22156532 km/s, surface gravity compared to Earth = 2.9114E+00 so 100 lbs. on Earth would weigh some 291 lbs. on K2-415 B. While earth-size diameter, not likely earth-like and temperature 400 K.

reference cited, An Earth-sized Planet around an M5 Dwarf Star at 22 pc, https://arxiv.org/abs/2302.00699, 01-Feb-2023.

My observation. Mean density 1.5769E+01 g cm^-3, escape velocity = 19.22156532 km/s, surface gravity compared to Earth = 2.9114E+00 so 100 lbs. on Earth would weigh some 291 lbs. on K2-415 B. While earth-size diameter, not likely earth-like and temperature 400 K.

Yep, another dud !

 

[rod]

Yep, another dud !

Yes, there are a number of reports about possible earth-like planets, this article focused more on an exoplanet like earth-size. Here is an example of earth-like exoplanet reporting.

Astronomers discover potential habitable exoplanet only 31 light-years from Earth

Wolf 1069 b offers a unique opportunity to study a potentially habitable and tidally locked exoplanet. Astronomers discover potential habitable exoplanet only 31 light-years from Earth : Read more

forums.space.com

A list of 6 or 10 goes up, some more are reported, and then these exoplanets commonly disappear from earth-like reporting hype.

 

[jamestmallow]

reference cited, An Earth-sized Planet around an M5 Dwarf Star at 22 pc, https://arxiv.org/abs/2302.00699, 01-Feb-2023.

My observation. Mean density 1.5769E+01 g cm^-3, escape velocity = 19.22156532 km/s, surface gravity compared to Earth = 2.9114E+00 so 100 lbs. on Earth would weigh some 291 lbs. on K2-415 B. While earth-size diameter, not likely earth-like and temperature 400 K.

It's misleading of them to call it Earth-size when it has 3 x the mass.

 

[jamestmallow]

Yep, another dud !

My thoughts as soon as I saw it's an M dwarf star.