Concept

TRAPPIST-1

! style="background-color: #FFFFC0; text-align: center;" colspan="2"
-
- style="vertical-align:top"
#if:Main sequence
! style="text-align:left" Evolutionary stage
Main sequence
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
TRAPPIST-1 is a cool red dwarf star noted for its seven known exoplanets. It lies in the constellation Aquarius about 40.66 light-years away from Earth, with a surface temperature of about . Its radius is slightly larger than Jupiter and it has a mass of about 9% of the Sun. It is estimated to be 7.6 billion years old, making it older than the Solar System. The discovery of the star was first published in 2000.
Observations in 2016 from the Transiting Planets and Planetesimals Small Telescope (TRAPPIST) at La Silla Observatory in Chile and numerous other telescopes led to the discovery of two terrestrial planets in orbit around TRAPPIST-1. In 2017, further analysis of the original observations identified five more planets. It takes the planets between about 1.5 and 19 days to orbit around the star on circular orbits.

Official source

https://en.wikipedia.org/wiki/TRAPPIST-1

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Related publications (12)

Intracluster light and dark matter halo shapes reflect common assembly, not mutual coupling: shape correspondence in CDM but not SIDM

The intracluster light (ICL) has been proposed as a luminous tracer of the dark matter (DM) halo shape in galaxy clusters, with recent observational studies and ΛCDM simulations suggesting close alignment between the two components. We test whether this correspondence holds in a self-interacting dark matter (SIDM) cosmology using matched CDM and SIDM (σDM/m = 0.1 and 0.5 cm2 g−1) hydrodynamical cluster simulations from TheThreeHundred project. We measure 3D axis ratios and major-axis orientations as a funct

Oxford University Press2026

Euclid Quick Data Release (Q1): XXII. An investigation of optically faint, red objects in the Euclid Deep Fields

Our understanding of cosmic star formation at z > 3 used to largely rely on rest-frame UV observations. However, these observations overlook dusty and massive sources, resulting in an incomplete census of early star-forming galaxies. Recent infrared data from Spitzer and the James Webb Space Telescope (JWST) have revealed a hidden population at z ∼ 3 − 6 with extreme red colours. Taking advantage of the overlap between imaging of the Euclid Deep Fields (EDFs), covering about 60 deg2, and ancillary Spitzer o

2026

Undetected Past Contacts with Technological Species: Implications for Technosignature Science

Claudio Grimaldi

In the search for extraterrestrial intelligence (SETI), the highly incomplete sampling of the technosignature search space is often considered as a plausible explanation for the persistent lack of detections over six decades of searches. If correct, this would imply that technosignatures may already have reached Earth without being detected or correctly identified. Here, we explore this possibility using a Bayesian inference framework to estimate present-day detectability given n >= 1 undetected contacts ov

IOP Publishing Ltd2026

Related people (1)

Oliver Müller

Education B.Sc. & M.Sc. in Physics | 2008 – 2014 University of Basel Ph.D. in Astronomy | 2014 – 2018 University of Basel Professionals experiences SNSF Postdoctoral Fellow 2018–2021 University of StrasbourgSenior Data Analyst 2021–2022 Google, SwitzerlandSNSF Ambizione Fellow 2022–2022 EPFL Teaching & PhD Past EPFL PhD Students as codirector Nick Heesters Awards Amerbach Prize University of Basel 2019 Edith Alice MÃ¼ller Award Swiss Society for Astrophysics a

Related concepts (7)

Proxima Centauri b

Proxima Centauri b (or Proxima b), sometimes referred to as Alpha Centauri Cb, is an exoplanet orbiting within the habitable zone of the red dwarf star Proxima Centauri, which is the closest star to the Sun and part of the larger triple star system Alpha Centauri. It is about from Earth in the constellation Centaurus, making it, along with the currently-disputed Proxima c, and Proxima d the closest known exoplanets to the Solar System. Proxima Centauri b orbits its parent star at a distance of roughly with an orbital period of approximately 11.

Extraterrestrial sky

In astronomy, an extraterrestrial sky is a view of outer space from the surface of an astronomical body other than Earth. The only extraterrestrial sky that has been directly observed and photographed by astronauts is that of the Moon. The skies of Venus, Mars and Titan have been observed by space probes designed to land on the surface and transmit images back to Earth. Characteristics of extraterrestrial sky appear to vary substantially due to a number of factors.

Habitability of red dwarf systems

The theorized habitability of red dwarf systems is determined by a large number of factors. Modern evidence indicates that planets in red dwarf systems are unlikely to be habitable, due to their low stellar flux, high probability of tidal locking and thus likely lack of magnetospheres and atmospheres, small circumstellar habitable zones and the high stellar variation experienced by planets of red dwarf stars, impeding their planetary habitability.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

! style="background-color: #FFFFC0; text-align: center;" colspan="2"
-
- style="vertical-align:top"
#if:Main sequence
! style="text-align:left" Evolutionary stage
Main sequence
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
- style="vertical-align:top"
TRAPPIST-1 is a cool red dwarf star noted for its seven known exoplanets. It lies in the constellation Aquarius about 40.66 light-years away from Earth, with a surface temperature of about . Its radius is slightly larger than Jupiter and it has a mass of about 9% of the Sun. It is estimated to be 7.6 billion years old, making it older than the Solar System. The discovery of the star was first published in 2000.
Observations in 2016 from the Transiting Planets and Planetesimals Small Telescope (TRAPPIST) at La Silla Observatory in Chile and numerous other telescopes led to the discovery of two terrestrial planets in orbit around TRAPPIST-1. In 2017, further analysis of the original observations identified five more planets. It takes the planets between about 1.5 and 19 days to orbit around the star on circular orbits.