BBC Sky at Night

DEEP-SKY TOUR

1 NGC 7243

We'll start in Lacerta, a small, dim constellation with an asterism that looks like a tiny Cassiopeia, called the Mini W. Open cluster NGC 7243 sits 1.5° west of the middle star of the vertically arranged Mini W, mag. +4.5 4 Lacertae. The cluster is a fairly loose collection of blue and white stars occupying an area 21 arcminutes across. A 150mm scope shows around 40 stars. With a bit of imagination, a group of the brighter members

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