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Collinder 140

‘The Tuft in the Tail of the Dog’

Open cluster in Canis Major

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Proper Name	Informally known as the 'Tuft', or the 'Tuft in the Tail of the Dog'
Messier Number	None
NGC/IC Number	None
Other Designations	Collinder 140
Constellation	Canis Major
Right Ascension	7h 23m 24s
Declination	-31° 58' 15"
Distance	c. 1,300 light years c. 400 parsecs
Magnitude	Apparent: +3.50 Absolute: -4.44
Diameter	Apparent: 1° Actual: 23 light years
Optimum Visibility	January / February

Collinder 140 lies relatively close to the Solar System in comparison to other similar clusters, so that it can be seen as a faint grouping of stars by the naked eye. The cluster's members are represented by the stars with a blue-white colouration in this image (the brighter yellowish star to the northeast is not part of Collinder 140, but a giant designated HR 2834 in the foreground of the cluster beyond). Imagery provided by Aladin sky atlas

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