Observation by Alan Thomas: Arp269 Cocoon Galaxy, Canes Venatici

Uploaded by

Alan Thomas

Observer

Alan Thomas

Observed

2023 Jun 30 - 22:13

Uploaded

2023 Jul 17 - 11:15

Objects

Arp 269

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Constellation

Canes Venatici

Field centre

RA: 12^h30^m
Dec: +41°38'
Position angle: +0°58'

Field size

0°31' × 0°31'

Equipment

PlaneWave CDK24 f6.5 Astrograph
FLI ProLine KAF-16803 CCD camera
10Micron GM4000 mount

Exposure

90sec.

Location

Observatorio del Teide, Tenerife

Target name

Arp269 Cocoon Galaxy

Title

Arp269 Cocoon Galaxy, Canes Venatici

About this image

This pair of interacting galaxies were discovered by William Herschel in January 1788. NGC4490 is a spiral galaxy and is the larger of the pair. NGC4485 is an irregular galaxy.

This short 90-second PIRATE exposure shows the rather loose structure of the spiral, with one arm seemingly reaching up towards the smaller irregular.

Distance c.27million ly. Separation c.24,000ly. Diameters: c.49,000ly, c.18,000ly.

Files associated with this observation

NGC 4490 (2).jpg (256.4 kB)

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Callum Potter

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