Annotated image of the field around CLASS B1608+656

Most of the galaxies visible in this Hubble image are members of a huge cluster called CLASS B1608+656, which lies about five billion light-years away. But the field also contains other objects that are both significantly closer and far more distant — including two gravitational lenses dubbed Fred and Ginger.

These contain enough mass to visibly distort the light from objects behind them. Fred, also known more prosaically as [FMK2006] ACS J160919+6532, lies near the lens galaxies in CLASS B1608+656, while Ginger ([FMK2006] ACS J160910+6532) is markedly closer to us. Despite their different distances from us, both can be seen near to CLASS B1608+656 in the central region of this Hubble image, and are labelled.

Credit:

NASA, ESA

About the Image

Id:heic1408b
Type:Observation
Release date:17 April 2014, 16:00
Related releases:heic1408
Size:3910 x 3912 px

About the Object

Name:CLASS B1608+656, Fred Ginger, QSO-160913+653228
Type:• Early Universe : Galaxy
• Early Universe : Galaxy : Activity : AGN : Quasar
• Early Universe : Galaxy : Grouping : Cluster
• X - Galaxies Images/Videos
Distance:z=0.63 (redshift)

Colours & filters

BandWavelengthTelescope
Optical
V
606 nm Hubble Space Telescope
ACS
Infrared
I
814 nm Hubble Space Telescope
ACS

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