Questions tagged [trappist-1]

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54
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3answers
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Where did TRAPPIST-1a go?

According to the NASA announcement and the Wikipedia article on TRAPPIST-1, the planets around the TRAPPIST-1 star are named TRAPPIST-1 b through h. What happened to "TRAPPIST-1 a"?
8
votes
2answers
514 views

Are the Trappist-1 planets close enough to be tidally heated?

According to the NASA press release, the Trappist planets are close enough (only a few million kilometers) that "the tidal forces between the planets are not negligible". The speaker says that this ...
5
votes
3answers
679 views

How many things are wrong in this “artist view” of the TRAPPIST-1 system?

There is a this poster on the NASA site ( that irks me. Of course its an artist's fantasy, but since it is on a NASA site, I see people considering it as scientifically accurate. So, beyond the two ...
0
votes
1answer
123 views

Are the planets in the TRAPPIST-1 system so close that inhabitants on one planet could see surface details on the other planets?

In a discussion below the Space Exploration question Are there any to-scale diagrams of the TRAPPIST-1 system I was invited to ask a question like this, so I have. Question: Are the planets in the ...
18
votes
4answers
2k views

Are there any to-scale diagrams of the TRAPPIST-1 system?

Recommended to cross-post from SpaceEx: https://space.stackexchange.com/questions/38397/are-there-any-to-scale-diagrams-of-the-trappist-1-system I was recently told that the planets in TRAPPIST-1 are ...
19
votes
2answers
2k views

Is there a gas giant orbiting TRAPPIST-1?

I would like to know if besides these planets, astronomers have discovered a gas planet like Jupiter in this system and if on these planets could exist life without a comet protector like Jupiter does ...