Einstein Ring Gravitational Lens: SDSS J073728.45+321618.5

The thin blue bull's-eye patterns in these eight Hubble Space Telescope images appear like neon signs floating over reddish-white blobs. The blobs are giant elliptical galaxies roughly 2 to 4 billion light-years away. The bull's-eye patterns are created as the light from galaxies twice as far away is distorted into circular shapes by the gravity of the giant elliptical galaxies. This phenomenon is called gravitational lensing, first predicted by Albert Einstein almost a century ago. Gravitational lensing occurs when the gravitational field from a massive object warps space and deflects light from a distant object behind it.

Credit:

NASA, ESA, A. Bolton (Harvard-Smithsonian CfA) and the SLACS Team

About the Image

NASA press release
NASA caption
Id:opo0532b
Type:Observation
Release date:17 November 2005, 19:00
Size:723 x 723 px

About the Object

Name:SDSS J073728.45+321618.5
Type:• Early Universe : Galaxy : Type : Gravitationally Lensed
• X - Galaxies Images/Videos
• X - Cosmology Images/Videos
Distance:z=0.322 (redshift)

Colours & filters

BandWavelengthTelescope
Optical
B
435 nm Hubble Space Telescope
ACS
Infrared
I
814 nm Hubble Space Telescope
ACS

Image Formats

Large JPEG
179.2 KB
Screensize JPEG
203.6 KB

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