Archivo de imágenes de Hubble

Hubble refina la distancia al cúmulo estelar de las Pléyades

The brilliant stars seen in this image are members of the popular open star cluster known as the Pleiades, or Seven Sisters. The Hubble Space Telescope's Fine Guidance Sensors refined the distance to the Pleiades at about 440 light-years. The Fine Guidance Sensors are at the peri...

Fecha
Jan 1, 2004
Misión
Hubble Space Telescope
ID de archivo
hubblesite-images-2004-20-1562-image
Por

The brilliant stars seen in this image are members of the popular open star cluster known as the Pleiades, or Seven Sisters. The Hubble Space Telescope's Fine Guidance Sensors refined the distance to the Pleiades at about 440 light-years. The Fine Guidance Sensors are at the periphery of Hubble's field-of-view. They trace a circumference that is approximately the angular size of the Moon on the sky. They are overlaid on this image to give a scale to Hubble's very narrow view on the heavens.

Hubble Fine Guidance Sensors measured slight changes in the apparent positions of three stars within the cluster when viewed from different sides of Earth's orbit. Astronomers took their measurements six months apart over a 2 1/2-year period. About 1,000 stars comprise the cluster, located in the constellation Taurus.

The color-composite image of the Pleiades star cluster was taken by the Palomar 48-inch Schmidt telescope. The image is from the second Palomar Observatory Sky Survey, and is part of the Digitized Sky Survey. The Pleiades photo was made from three separate images taken in red, green, and blue filters. The separate images were taken between Nov. 5, 1986 and Sept. 11, 1996.

Credits

NASA, ESA and AURA/Caltech

Detalles de la imagen

About The Object
Object NamePleiades, NGC 1432/35, M45
Object DescriptionOpen Cluster
R.A. Position03h 46m 59.99s
Dec. Position24° 7' 0.0"
ConstellationTaurus
DistanceApproximately 400 light-years (120 parsecs)
About The Data
Data DescriptionThis data are taken from HST proposals and : The science team consists of: D. Soderblom and E. Nelan (STScI), F. Benedict and B. Arthur (U. Texas), and B. Jones (Lick Obs.)
InstrumentHST>FGS
FiltersSecond Palomar Observatory Sky Survey (POSS2)/UKSTU (B), (R), and (I)
About The Image
Color InfoBlue: POSS2/UKSTU (B) Green: POSS2/UKSTU (R) Red: POSS2/UKSTU (I)

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