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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.

Źródło:

ESO

O zdjęciu

Identyfikator:eso9845b
Typ:Obserwacje
Data publikacji:23 września 1998
Powiązane komunikaty:eso9845
Rozmiar:2323 x 2320 px

O obiekcie

Nazwa:PB 05763
Typ:Early Universe : Galaxy : Grouping : Cluster
Early Universe : Galaxy : Activity : AGN : Quasar
Odległość:z=0.85 (redshift)
Constellation:Pisces
Kategoria:Galaxy Clusters

Formaty zdjęć

Wielki JPEG
943,9 KB

Tapety

1024x768
214,5 KB
1280x1024
322,5 KB
1600x1200
424,4 KB
1920x1200
472,2 KB
2048x1536
619,8 KB

Współrzędne

Pozycja (RA):0 8 48.04
Pozycja (Dec):0° 39' 32.31"
Pole widzenia:6.73 x 6.73 arcminutes
Orientacja:North is 45.1° lewo of vertical

Kolory i filtry

PasmoDługość faliTeleskop
Podczerwony
I
800 nmVery Large Telescope
FORS1

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