Archivo de imágenes de Hubble
La zona habitable de TRAPPIST-1
The TRAPPIST-1 system contains a total of seven planets, all around the size of Earth. Three of them — TRAPPIST-1e, f and g — dwell in their star's so-called "habitable zone." The habitable zone, or Goldilocks zone, is a band around every star (shown here in green) where astronom...
- Fecha
- Jan 1, 2017
- Misión
- Hubble Space Telescope
- ID de archivo
- hubblesite-images-2017-07-3986-image
The TRAPPIST-1 system contains a total of seven planets, all around the size of Earth. Three of them — TRAPPIST-1e, f and g — dwell in their star's so-called "habitable zone." The habitable zone, or Goldilocks zone, is a band around every star (shown here in green) where astronomers have calculated that temperatures are just right — not too hot, not too cold — for liquid water to pool on the surface of an Earth-like world.
While TRAPPIST-1b, c and d are too close to be in the system's likely habitable zone, and TRAPPIST-1h is too far away, the planets' discoverers say more optimistic scenarios could allow any or all of the planets to harbor liquid water. In particular, the strikingly small orbits of these worlds make it likely that most, if not all of them, perpetually show the same face to their star, the way our moon always shows the same face to the Earth. This would result in an extreme range of temperatures from the day to night sides, allowing for situations not factored into the traditional habitable zone definition. The illustrations shown for the various planets depict a range of possible scenarios of what they could look like.
The system has been revealed through observations from NASA's Spitzer Space Telescope and the ground-based TRAPPIST (TRAnsiting Planets and PlanetesImals Small Telescope) telescope, as well as other ground-based observatories. The system was named for the TRAPPIST telescope.
Credits
Illustration: NASA/JPL-CaltechDetalles de la imagen
| About The Object | |
|---|---|
| Object Name | TRAPPIST-1, 2MASS J23062928-0502285 |
| Object Description | Dwarf Star, Planetary System, Extrasolar Planets |
| R.A. Position | 23h 06m 29.283s |
| Dec. Position | -05° 02' 28.59" |
| Constellation | Aquarius |
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Fuente
La imagen y el material de referencia se acreditan al archivo oficial de la misión enlazado a continuación.
Ver en NASA.gov