FORS1 first light - distant cluster of galaxies

Eso_eso9845b_1024

eso_eso9845b September 23rd, 1998

Credit: ESO

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.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso9845b/

Curator: European Southern Observatory, Garching bei München, None, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

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Image Details Image Details

Image Type
Observation
Object Name
PB 05763
Subject - Distant Universe
Galaxy > Grouping > Cluster
Galaxy > Activity > AGN > Quasar
Eso_eso9845b_128
 

Position Details Position Details

Position (ICRS)
RA = 0h 8m 48.0s
DEC = 0° 39’ 32.3”
Orientation
North is 45.1° CCW
Field of View
6.7 x 6.7 arcminutes
Constellation
Pisces

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Grayscale VLT (FORS1) Infrared (I) 800.0 nm
This image is the negative of eso9845c (http://www.eso.org/public/images/eso9845c/).
Spectrum_base
Grayscale
Eso_eso9845b_1280
×
ID
eso9845b
Subject Category
D.5.5.3   D.5.3.2.1  
Subject Name
PB 05763
Credits
ESO
Release Date
1998-09-23T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso9845b/
Type
Observation
Image Quality
Distance Notes
Distance to quasar PB 05763 in redshift from NED.
Facility
Very Large Telescope
Instrument
FORS1
Color Assignment
Grayscale
Band
Infrared
Bandpass
I
Central Wavelength
800
Start Time
Integration Time
Dataset ID
Notes
T
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
2.200156, -0.658975
Reference Dimension
2323.0, 2320.0
Reference Pixel
2208.0927462, 1490.91151607
Scale
-4.831626e-05, 4.831626e-05
Rotation
45.11800208931
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.org/
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
None
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
European Southern Observatory
Publisher ID
eso
Resource ID
eso9845b
Resource URL
https://www.eso.org/public/archives/images/original/eso9845b.tif
Related Resources
Metadata Date
2009-01-08T13:15:44+01:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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