红矮星的#光度分布存在一个差距，这表明它们可以分为两种不同类型，并为这些微弱、冷、小型恒星提供了新的见解。《美国国家科学院院刊》内部运作：https://ift.tt/PXTUtg7 #光度差距 #TRAPPIST1 #半人马座半人马星 #天文学

文章链接：https://ift.tt/UPpQJAY

红矮星的亮度分布中出现的间隙指出了两种不同类型，为这些微弱冷小星提供了新的理解。《美国国家科学院院刊》内部工作论文详见：[链接] 照明间隙 #TRAPPIST1 #ProximaCentauri #天文学 🔗原始的网址链接是：https://ift.tt/knYb0Dh

Exoplaneten van TRAPPIST-1 mogelijk toch bewoonbaarder dan gedacht

Een nieuw computermodel dat de evolutie van planetaire atmosferen simuleert ontdekte dat er nog steeds water kan voorkomen op de planeten in dit stelsel.

https://www.kuuke.nl/exoplaneten-van-trappist-1-mogelijk-toch-bewoonbaarder-dan-gedacht/

#atmosfeer #exoplaneet #klimaat #RodeDwerg #TRAPPIST1

#Exoplanets in #Trappist1 system may be more habitable than previously thought, new study suggests...
https://www.space.com/trappist-1-exoplanets-more-likely-to-have-water
"Exoplanets in the #trappist 1 system more likely to be #habitable than #scientists once thought, study suggests..."

Das Problem bei solchen Nachrichten ist ja immer, dass man zwar etwas entdeckt hat, was der #Erde ziemlich ähnlich ist und in der #GoldiLocksZone liegt, am Ende aber die vollkommen falsche Atmosphärenzusammensetzung hat und die Rotation an den Zentralstern gebunden ist.

Genau dasselbe Schema und dementsprechend Nachrichten gab es schon bei #Trappist1 und vielen anderen #Exoplaneten.

https://www.youtube.com/watch?v=yAGW4XvRs0U

Bewoonbare planeten mogelijk zeldzamer dan gedacht

Een andere TRAPPIST-wereld lijkt atmosfeerloos te zijn, wat aangeeft dat werelden zoals de onze uniek kunnen zijn.

https://www.kuuke.nl/bewoonbare-planeten-mogelijk-zeldzamer-dan-gedacht/

#atmosfeer #TRAPPIST1 #WebbTelescope

Exoplanet TRAPPIST-1c ist keine Venus. Zweiter Planet um nahen Roten Zwerg hat kaum Wasser und maximal eine dünne Atmosphäre. #TRAPPIST1c #Exoplanet #JWST #Trappist1 #Astronomie
https://www.scinexx.de/news/kosmos/exoplanet-trappist-1c-ist-keine-venus/

#trappist1 #exobiologie
3 planètes habitables

"TRAPPIST-1 is an ultra-cool red dwarf star in the constellation Aquarius."
😎 No kidding. 😎

I just had worked out the calculations and how to illustrate the results, and so I quickly made this approximation of what you would see in the sky during day on the planet TRAPPIST-1 e.

The seven planets are all quite large and really close to the star which means they are as visible as the Moon to us. And you could see the change in size for the planets every day.

#astronomy #trappist1 #exoplanets

The Trappist-1 system, with its ultra-cool red dwarf star and 7 exoplanets is relatively small in extent, as illustrated by this graphic of the orbits of the exoplanets compared to that of planet Mercury.
https://hubblesite.org/contents/media/images/2016/27/3775-Image.html?news=true
#JWST #Trappist1 #exoplanet
8/n

Here is a graph from the preprint paper that illustrates how the measured temp. of 503K implies a lack of atmosphere for exoplanet Trappist-1b.
The top green curve shows the 508K dayside temp predicted for zero heat redistribution.
The blue curve shows the measured 503K dayside temp.
The orange curve shows the predicted temp. for redistribution of heat by an atmosphere.
The last 2 curves show
spectra from CO2 and O2+CO2 atmospheres.
https://arxiv.org/abs/2303.14849
#JWST #Trappist1 #exoplanet
7/n

Exoplanet TRAPPIST-1b hat keine Atmosphäre. Innerster "Erdzwilling" um den nahen Roten Zwerg ähnelt eher unserem Merkur. #TRAPPIST1 #Exoplanet #JWST #Astronomie #Planet https://www.scinexx.de/news/kosmos/exoplanet-trappist-1b-hat-keine-atmosphaere/

Few more artist's impressions of the exoplanets of the TRAPPIST-1 system.
https://www.eso.org/public/news/eso1615/
#JWST #Trappist1 #exoplanet
6/n

An artist's concept of a view from the surface of exoplanet TRAPPIST-1f.
Credit: NASA/JPL-Catlech
https://exoplanets.nasa.gov/news/1453/hubble-delivers-first-hints-of-possible-water-content-of-trappist-1-planets/
#JWST #Trappist1 #exoplanet
5/n

Some more parameters of the Trappist-1 exoplanet lineup and comparison with the inner solar system planets, as determined by NASA's Spitzer Space Telescope and other ground based telescopes.
https://www.spitzer.caltech.edu/image/ssc2017-01f-trappist-1-statistics-table
#JWST #Trappist1 #exoplanet
4/n

Exoplanet TRAPPIST-1b Has No Atmosphere
https://skyandtelescope.org/astronomy-news/exoplanet-trappist-1b-has-no-atmosphere/

The TRAPPIST exoplanets offer the James Webb Space Telescope some of the best opportunities to observe rocky worlds. But Webb images show the innermost planet b has no atmosphere. The post Exoplanet TRAPPIST-1b Has No Atmosphere appeared first on Sky & Telescope .
#Astronomy_&_Observing_News #Exoplanets #Exoplanet_Atmospheres #exoplanets #TRAPPIST1

Speaking of TRAPPIST-1e (Jordan's Gold Star winner for Ep 2: Aquarius) -- do yourself a favor and take a visit to the NASA exoplanet website -- it is truly delightful!

#Astronomy #Astrodon #NASA #Exoplanet #TRAPPIST1 #Space

I'm currently enjoying the Strange New Worlds:🔗 : https://exoplanets.nasa.gov/alien-worlds/strange-new-worlds/

@fgonz and we all know that the race now is to discover these worlds and to characterize them. Speaking of which...hey #JWST, what about #TRAPPIST1? Are we there yet? ;)

New SETI Shorts just dropped! Featuring grad student Olivia Lim from #iREX at the #JWSTEarlyScience Results conference and talking about early observations of #TRAPPIST1. #science #exoplanet #scicomm

https://youtu.be/WnGKBOgyXuk

#JWST snaps first chemical profile of an #exoplanet
#NASA said #JamesWebb #telescope picked up more CO2, as well as carbon monoxide, sodium, potassium and water. Next, it may look at rockier worlds, like #TRAPPIST1– several of which sit in #habitablezone
https://bit.ly/3V5UVXs