FORS1 first light - distant cluster of galaxies

Produced from a 5-min near-infrared exposure, this image was obtained during the night of First Light of the FORS1 instrument (September 15, 1998). It shows a sky field near the quasar PB5763 in which is also seen a peculiar, quite distant cluster of galaxies. Many other fainter galaxies are seen in other areas, for instance in the right part of the field.

Images eso9845b (negative) and eso9845c (positive) are based on a monochrome image taken in 0.8 arcsec seeing through a near-infrared (I; 800 nm) filtre. The exposure time was 5 minutes and the image was flat-fielded. The fields shown measure 6.8 x 6.8 arcmin and 2.5 x 2.3 arcmin, respectively. North is to the upper left; East is to the lower left.

Credit:

ESO

Over de afbeelding

Id:eso9845b
Type:Observatie
Publicatiedatum:23 september 1998
Gerelateerde berichten:eso9845
Grootte:2323 x 2320 px

Over het object

Naam:PB 05763
Type:Early Universe : Galaxy : Grouping : Cluster
Early Universe : Galaxy : Activity : AGN : Quasar
Afstand:z=0.85 (roodverschuiving)
Constellation:Pisces
Categorie:Galaxy Clusters

Image Formats

Grote JPEG
943,9 KB

Wallpapers

1024x768
214,4 KB
1280x1024
322,4 KB
1600x1200
424,4 KB
1920x1200
472,2 KB
2048x1536
619,8 KB

Coordinates

Position (RA):0 8 48.04
Position (Dec):0° 39' 32.31"
Field of view:6.73 x 6.73 arcminutes
Orientation:North is 45.1° left of vertical

Kleuren & filters

BandGolflengteTelescoop
Infrarood
I
800 nmVery Large Telescope
FORS1

Noten: This image is the negative of eso9845c (http://www.eso.org/public/images/eso9845c/).