Celestial hemisphere:  Southern  ·  Constellation: Crux (Cru)  ·  Contains:  Herschel's Jewel Box  ·  NGC 4755  ·  The star κCru  ·  kappa Crucis Cluster
Jewel Box, Logan Skies DownUnder
Jewel Box
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Jewel Box

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Description

NGC 4755 - Jewel Box - Open Cluster

NGC 4755, also known as the Jewel Box or Kappa Crucis Cluster, is one of the finest open clusters in the sky. It's located in the small southern constellation of Crux and at magnitude +4.2 is bright enough to be seen with the naked eye. It contains over 100 stars, mostly blue or red, spread over 10 arc minutes of apparent sky. This cluster is one of a handful of night time objects that offers something for all observers of all telescope sizes.

NGC 4755 is located 6,440 light-years distant and is best seen from southern latitudes during the months of March, April and May. It's circumpolar from locations south of 30S and can also be seen from the tropics, although for many Northern Hemisphere observers it never rises above the southern horizon.

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Jewel Box, Logan Skies DownUnder