Observation by Alan Thomas: March DSS OoI: The Cosmic Halo (invisibl...

Uploaded by

Alan Thomas

Observer

Alan Thomas

Observed

2023 Mar 11 - 06:09

Uploaded

2023 Mar 31 - 09:36

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Constellation

Leo

Field centre

RA: 11^h48^m
Dec: +19°30'
Position angle: -0°29'

Field size

0°19' × 0°19'

Equipment

42cm CDK17 corrected Dall-Kirkham f/6.8
FLI ProLine KAF-09000 camera
10Micron GM4000 mount

Exposure

3min

Location

Observatorio del Teide, Tenerife

Target name

The Cosmic Halo (invisible) in Leo

Title

March DSS OoI: The Cosmic Halo (invisible) in Leo

About this image

The Cosmic Halo in Leo is the Deep Sky Section's March 'Object of Interest'. With an exposure limited to 3min, the galaxy LRG 3-757 is barely visible and the surrounding halo not at all in this COAST image. Perhaps not surprising given the brief exposure and the extreme distance of the object - 10.3 billion ly.

Files associated with this observation

Galaxy ring COAST mark.jpg (80.9 kB)

Like this image

David Strange, Richard Sargent, Callum Potter, David Basey, Dr Paul Leyland

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