Digel Cloud 2S

Digel Cloud 2S

Título

El telescopio espacial James Webb de la NASA observó las afueras de nuestra galaxia de la Vía Láctea. Conocida como la galaxia externa extrema, esta región se encuentra a más de 58,000 años luz del Centro Galáctico.

Para obtener más información sobre cómo un entorno local afecta el proceso de formación de estrellas dentro de él, un equipo de científicos dirigió el Nircam del telescopio (cámara de infrarrojo cercano) y MIRI (instrumento de infrarrojo medio) hacia un total de cuatro áreas de formación de estrellas dentro de las nubes Digel 1 y 2: 1a, 1b, 2n y 2s.

En el caso de Cloud 2s, que se muestra aquí, Webb reveló un clúster principal luminoso que contiene estrellas recién formadas. Varias de estas estrellas jóvenes están emitiendo chorros de material extendidos de sus postes. En la parte superior derecha del clúster principal se encuentra un subgrochador de estrellas, una característica que los científicos previamente sospechaban que existían, pero que ahora se ha confirmado con Webb. Además, el telescopio reveló un mar profundo de galaxias de fondo y estructuras nebulosas rojas que están siendo talladas por vientos y radiación de estrellas cercanas.

créditos

Imagen

NASA, ESA, CSA, STSCI, Michael Ressler (Nasa-JPL)

Palabras clave

About The Object
Object Name Digel Cloud 2
Object Description Star cluster on the outskirts of the Milky Way galaxy
R.A. Position 02:48:28.45
Dec. Position +58:23:29.72
Constellation Perseus
Distance About 40,000 light-years
Dimensions Image is 1.8 arcmin across (about 21 light-years)
About The Data
Data Description This image was created with Webb data from proposal: (M. Ressler); Image Processing: Joseph DePasquale (STScI)
Instrument NIRCam, MIRI
Exposure Dates 17 Jan 2023
Filters NIRCam: F115W, F150W, F200W, F356W, F444W MIRI: F770W, F1280W
About The Image
Color Info These images are a composite of separate exposures acquired by the James Webb Space Telescope using the NIRCam and MIRI instruments. Several filters were used to sample wide wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Purple: F115W, Blue: F150W, Green: F200W, Yellow: F356W, Orange: F444W, Red: F770W, Red: F1280W
Compass and Scale Image At center right is a compact star cluster composed of luminous red, blue, and white points of light. Faint jets with clumpy, diffuse material extend in various directions from the bright cluster. Above and to the right is a smaller cluster of stars. Translucent red wisps of material stretch across the scene, though there are patches and a noticeable gap in the top left corner that reveal the black background of space. Background galaxies are scattered across this swath of space, appearing as small blue-white and orange-white dots or fuzzy, thin disks. There are two noticeably larger points, foreground stars, with diffraction spikes: an orange-white point on the left, and a blue-white point in the top right.
About The Object
Object Name A name or catalog number that astronomers use to identify an astronomical object.
Object Description The type of astronomical object.
R.A. Position Right ascension – analogous to longitude – is one component of an object's position.
Dec. Position Declination – analogous to latitude – is one component of an object's position.
Constellation One of 88 recognized regions of the celestial sphere in which the object appears.
Distance The physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.
Dimensions The physical size of the object or the apparent angle it subtends on the sky.
About The Data
Data Description
  • Proposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
  • Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.
Instrument The science instrument used to produce the data.
Exposure Dates The date(s) that the telescope made its observations and the total exposure time.
Filters The camera filters that were used in the science observations.
About The Image
Color Info A brief description of the methods used to convert telescope data into the color image being presented.
Compass and Scale Image An astronomical image with a scale that shows how large an object is on the sky, a compass that shows how the object is oriented on the sky, and the filters with which the image was made.

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