Observation by Alan Thomas: NGC247 with Burbidge's Galaxy Chain in C...

Uploaded by

Alan Thomas

Observer

Alan Thomas

Observed

2024 Aug 11 - 02:18

Uploaded

2024 Aug 27 - 19:31

Objects

NGC247

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Constellation

Cetus

Field centre

RA: 00^h47^m
Dec: -20°39'
Position angle: +178°58'

Field size

0°29' × 0°30'

Equipment

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

Exposure

2min.

Location

Observatorio del Teide, Tenerife

Target name

NGC247 with Burbidge's Galaxy Chain in Cetus

Title

NGC247 with Burbidge's Galaxy Chain in Cetus

About this image

NGC247 is a spiral galaxy and is a core member of the Sculptor galaxy group. It is almost half the diameter of the Milky Way but also relatively close to us. It was discovered in October 1784 by William Herschel.

The disk of the galaxy displays a large void, of mysterious origin, that is well seen in this COAST image. Another unusual feature is its tiny, star-like nucleus, which adds to the oddness of the visual impression of this highly tilted galaxy.

Apparent magnitude 9.9. Diameter c.70,000ly. Distance c.11.1 million ly.

At lower centre of the frame, four small spiral galaxies can be seen in a vertical line. Known as Burbidge's Chain, they were (presumably) discovered by the remarkable Eleanor and Geoffrey Burbidge. They lie at a distance of about 300 million ly, and range in magnitude from 14-17.

Files associated with this observation

NGC247 COAST v3image-jpeg-i 2024.jpeg (297.4 kB)

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Dominic Ford, Callum Potter, Peter Mulligan

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