DEEP-SKY OB­JECTS

Sky at Night Magazine - - SOUTHERN HEMISPHERE -

The naked-eye Bee­hive Clus­ter in Can­cer, M44 (RA 8h 40.4m, dec. +19° 40’; pic­tured) is a bril­liant binoc­u­lar ob­ject. Cov­er­ing 1º of sky, its bright­est mem­bers con­sist of around a dozen 6th- to 8th-mag­ni­tude stars, in­clud­ing three ar­ranged in an ob­vi­ous isosce­les tri­an­gle just southeast of cen­tre. The 6th-mag­ni­tude stars 39 and 40 Can­cri make an at­trac­tive pair, while a small tele­scope re­veals over 100 stars.

Can­cer has an­other deep-sky ob­ject of note, star clus­ter M67 (RA 8h 51.3m, dec. +11° 48’). Lo­cated 8° south-southeast of M44, this open clus­ter is 25 ar­cmin­utes across, with its bright­est mem­bers ar­ranged in loose groups in­ter­spersed with arcs. It con­tains around 100 stars from 9th to 14th mag­ni­tude.

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