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SpaceEngineer
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Exoplanets news thread

14 Mar 2017 09:20

TRAPPIST-1 discussion and addon for 0.98 is here.
 
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Exoplanets news thread

19 Jun 2017 11:43

"man cannot discover new oceans unless he has the courage to lose sight of the shore"
-Andre Gide
 
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Exoplanets news thread

15 Dec 2017 09:31

An eighth planet has been discovered at the star Kepler-90. This makes the Kepler-90 star similar to our sun with the number of planets in the Kepler-90 system equal to the number of planets in our solar system. 
https://arxiv.org/abs/1712.05044

Of course, if you consider dwarf planets like Pluto to be actual planets, then our solar system has the most planets.
 
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Mr. Missed Her
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Exoplanets news thread

17 Dec 2017 09:26

Of course, if you consider dwarf planets like Pluto to be actual planets, then our solar system has the most planets.
(Known.)
Space is very spacious.
 
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Watsisname
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Exoplanets news thread

20 Dec 2017 03:24

Yeah, since we cannot yet detect exoplanets smaller than the Moon, it makes little sense to compare the number of known planets + dwarf planets in the solar system to any other system.  If we could, our system's status of "having the most" would probably be lost very quickly.
 
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Exoplanets news thread

20 Dec 2017 08:55

We also can't detect planets which are very far from the star, like Uranus and Neptune. So systems like Kepler-90 may actually have more planets.
Compact systems with many planets packed inside Mercury orbit probably have no external planets (or have just few of them). We can roughly estimate "is the system map complete" by summing up the masses of all known planets and dividing them on mass of the host star. If it is greater than 0.002, this may indicate that star has no unknown gas giants at the least (but still may have smaller planets of course). This is the upper limit on the mass of the protoplanetary disk.
 
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Exoplanets news thread

26 Jan 2018 17:17

Hope all of these have been added as add ons :) we also discovered the closest earthlike planet at 11 LY away
 
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Exoplanets news thread

28 Jan 2018 07:08

Each new version of SE have up-to-date exoplanets catalog.
 
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Exoplanets news thread

04 Feb 2018 16:32

It seems we have found (more) extra-galactic worlds now. https://www.universetoday.com/138478/fi ... er-galaxy/

Time to fix that distance bug for hyper-faraway custom systems? :D :lol:

(Just joking, no worries. ;) )
Last edited by PlutonianEmpire on 05 Feb 2018 12:50, edited 1 time in total.
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Exoplanets news thread

05 Feb 2018 02:22

It seems we have found extra-galactic worlds now.
https://en.wikipedia.org/wiki/PA-99-N2
 
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Exoplanets news thread

05 Feb 2018 12:49

Eek, thanks for the reminder!
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Exoplanets news thread

05 Feb 2018 14:01

TRAPPIST-1 update:
https://www.nasa.gov/feature/jpl/new-clues-to-trappist-1-planet-compositions-atmospheres

All planets are most likely SE terra class, with a densities range from 3.4 (like Moon) to 5.6 (like Earth). Smallest planets certainly have large amounts of volatiles, probably water or ice.

Image

Image

Edit: the plot from the article is more informative. It shows that only planet e resembles Earth and Venus by composition, others seems to have significant amounts of water, or abnormally small metallic core.
fig10.png
 
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Exoplanets news thread

06 Feb 2018 00:58

[quote="SpaceEngineer"][quote="PlutonianEmpire"][post]18441[/post] It seems we have found extra-galactic worlds now.[/quote]
[url=https://en.wikipedia.org/wiki/PA-99-N2]https://en.wikipedia.org/wiki/PA-99-N2[/url][/quote]
Multiply that by a couple thousand.
https://www.seeker.com/astronomy/thousa ... first-time
 
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DoctorOfSpace
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Exoplanets news thread

06 Feb 2018 01:22

So I take it this means the planets in SE will need to be updated. 
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What do you think about the super flare of the star Proxima Centauri?

02 Mar 2018 20:31

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Merged from the "What do you think about the super flare of the star Proxima Centauri?" topic
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Hi guys, I hope you are doing well

So.. the other day I read that Proxima Centauri released a huge flare last year, decreasing the chances of existing life in Proxima b
 
What do you think about it? I also read that the flare lasted 2 minutes.. what if the flare happened in the part of the star that was not facing Proxima b? Proxima Centauri rotates every 82 days.. I think that maybe the flare might have been released on the oposite side towards empty space (or other exoplanets)
 
I recently made a new video on the top 5 potentially habitable exoplanets closest to Earth in 2018 (here it is: http://www.youtube.com/watch?v=Pd6smyz2tUk&list=PL3RiFKfZj3pv1ZqpFxuZinoGtUGEOank) in which I included Proxima b because it is still considered the one with the highest earth similarity index. Do you think that Proxima b should not be considered a potentially habitable exoplanet anymore? Should the target of the Starshot project be changed?

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