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Cosmic horseshoe, Morten la Cour

Cosmic horseshoe

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Description

the cosmic horseshoe is a background starbursting galaxy, which is gravitationally lensed around the superluminous red galaxy LRG 3-757.

The ring is 10.2" across, a somewhat more in the image because of atomspheric blur.

The image is LRBG with approximately 10 hours L and 2-3 hours of each of the RGB channels.

The native resolution is 0.84pix/arcsec. The image is drizzle integrated and resampled 200% to a final "resolution" of 0.21pix/arcsec. Cropped to resemble the HST image

https://en.wikipedia.org/wiki/Cosmic_Horseshoe#/media/File:Lensshoe_hubble.jpg

Processed in Pixinsight.

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Cosmic horseshoe, Morten la Cour