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Observation by David Strange: March Object of Interest – The Cos...

Uploaded by

David Strange

Observer

David Strange

Observed

2023 Mar 19 - 23:51

Uploaded

2023 Mar 29 - 12:01

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Constellation

Leo

Field centre

RA: 11h48m
Dec: +19°28'
Position angle: -1°25'

Field size

0°18' × 0°17'

Equipment
  • RC10
  • ASI533MC
  • L-Pro filter
Exposure

20 x 120s

Location

Salcombe Regis, East Devon

Target name

The Cosmic Horseshoe

Title

March Object of Interest – The Cosmic Horseshoe

About this image

This is my attempt at this month's object of interest. The Cosmic Horsehoe is extremely faint at mag 20 and although I caught the foreground galaxy LRG 3-757 I failed to record the horseshoe (the lensed galaxy). This is a negative image with a colour inset showing the rare luminous red galaxy which shows exteme infrared emission. The galaxy core is noticeably red in the image although was not visible in individual subs.

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Comments
Dr Paul Leyland
Dr Paul Leyland, 2023 Mar 29 - 16:32 UTC

Nice try!

I am sure you can manage the horseshoe but you will need much more than 40 minutes exposure. Two or three hours should be enough.

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