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Posts tagged ‘very large telescope’

This image shows Neptune observed with the MUSE instrument at ESO’s Very Large Telescope (VLT). At each pixel within Neptune, MUSE splits the incoming light into its constituent colours or wavelengths. This is similar to obtaining images at thousands of different wavelengths all at once, which provides a wealth of valuable information to astronomers. The image to the right combines all colours captured by MUSE into a “natural” view of Neptune, where a dark spot can be seen to the upper-right. Then we see images at specific wavelengths: 551 nanometres (blue), 831 nm (green), and 848 nm (red); note that the colours are only indicative, for display purposes. The dark spot is most prominent at shorter (bluer) wavelengths. Right next to this dark spot MUSE also captured a small bright one, seen here only in the middle image at 831 nm and located deep in the atmosphere. This type of deep bright cloud had never been identified before on the planet. The images also show several other shallower bright spots towards the bottom-left edge of Neptune, seen at long wavelengths. Imaging Neptune’s dark spot from the ground was only possible thanks to the VLT’s Adaptive Optics Facility, which corrects the blur caused by atmospheric turbulence and allows MUSE to obtain crystal clear images. To better highlight the subtle dark and bright features on the planet, the astronomers carefully processed the MUSE data, obtaining what you see here.

Gracias al Very Large Telescope (VLT) de ESO, la comunidad astronómica ha podido observar, en la atmósfera de Neptuno, una gran mancha oscura y, a su lado, un inesperado punto brillante más pequeño. Es la primera vez que, con un telescopio terrestre, se observa una…

Por primera vez se detecta desde la Tierra una misteriosa mancha oscura en Neptuno

febrero 7, 2024

This illustration shows a night-side view of the exoplanet WASP-76b. The ultra-hot giant exoplanet has a day side where temperatures climb above 2400 degrees Celsius, high enough to vaporise metals. Strong winds carry iron vapour to the cooler night side where it condenses into iron droplets. To the left of the image, we see the evening border of the exoplanet, where it transitions from day to night.

Utilizando el Very Large Telescope (VLT) de ESO, un equipo de investigadores ha observado un planeta extremo donde sospechan que llueve hierro. El exoplaneta gigante ultracaliente tiene un lado diurno donde se superan los 2400 grados Celsius, una temperatura lo suficientemente alta como para vaporizar…

El exoplaneta en el que llueve hierro

agosto 13, 2020

Hygiea-nuevo-planeta-enano-Sistema-Solar

Un equipo internacional de astrónomos acaba de descubrir que el asteroide Hygiea debería clasificarse como planeta enano. Después de Ceres, Vesta y Pallas, en efecto, el objeto es el cuarto más grande del cinturón de asteroides, un enorme anillo de rocas de todos los tamaños…

Hygiea, el nuevo planeta enano del Sistema Solar

octubre 29, 2019

Esta extraordinaria burbuja, que brilla como el fantasma de una estrella en la inquietante oscuridad del espacio, puede parecer sobrenatural y misteriosa, pero es un objeto astronómico familiar: una nebulosa planetaria, los restos de una estrella moribunda. Esta es la mejor imagen obtenida hasta ahora…

El fantasma de una estrella moribunda

agosto 5, 2015