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- Jewel_Box_(star_cluster) abstract "The Jewel Box, Kappa Crucis Cluster, NGC 4755, is an open cluster in the constellation Crux, and was originally discovered by Nicolas Louis de Lacaille during 1751–1752. This famous cluster was later named the Jewel Box by Sir John Herschel when he described its telescopic appearance as "a casket of variously coloured precious stones." It is easily found to the naked eye as a hazy star some 1.0° southeast of the first-magnitude star Beta Crucis, and was given its name by its original Bayer star designation of Kappa Crucis. Since known as a star cluster, the third brightest cluster star, placed within the main A-shape (at the end of the right "leg"), became known as Kappa Crucis (HD 111973, HIP 62931, HR 4890). This is a blue supergiant of spectral type: B3Iae, shining at the apparent visual magnitude of 5.94V. Two other cluster stars are brighter than κ Cru, namely, 5.77V magnitude star HD 111904 (HIP 62894), placed at the tip of the A-shape, and HD 111613 (HIP 62732) at 5.75V, which is 15 arc minutes closer to Beta Crucis / Mimosa.This cluster is one of the youngest known, with an estimated age of 14 million years. It has a total integrated magnitude of 4.2, is located 6,440 light years from Earth, and contains around 100 stars.".
- Jewel_Box_(star_cluster) thumbnail A_Snapshot_of_the_Jewel_Box_cluster_with_the_ESO_VLT.jpg?width=300.
- Jewel_Box_(star_cluster) wikiPageExternalLink 115713085.
- Jewel_Box_(star_cluster) wikiPageExternalLink n4755.html.
- Jewel_Box_(star_cluster) wikiPageID "936434".
- Jewel_Box_(star_cluster) wikiPageRevisionID "606313520".
- Jewel_Box_(star_cluster) age "16".
- Jewel_Box_(star_cluster) caption "NGC 4755 taken by the VLT".
- Jewel_Box_(star_cluster) constellation Crux.
- Jewel_Box_(star_cluster) credit European_Southern_Observatory.
- Jewel_Box_(star_cluster) distLy "6.4".
- Jewel_Box_(star_cluster) distPc "1.968".
- Jewel_Box_(star_cluster) epoch Epoch_(astronomy).
- Jewel_Box_(star_cluster) hasPhotoCollection Jewel_Box_(star_cluster).
- Jewel_Box_(star_cluster) massMsol "-".
- Jewel_Box_(star_cluster) name "Jewel Box".
- Jewel_Box_(star_cluster) names "Kappa Crucis Cluster, Caldwell 94".
- Jewel_Box_(star_cluster) names "NGC 4755, Herschel's Jewel Box,".
- Jewel_Box_(star_cluster) notes "-".
- Jewel_Box_(star_cluster) radiusLy "-".
- Jewel_Box_(star_cluster) vHb "-".
- Jewel_Box_(star_cluster) subject Category:Caldwell_objects.
- Jewel_Box_(star_cluster) subject Category:Crux_(constellation).
- Jewel_Box_(star_cluster) subject Category:NGC_objects.
- Jewel_Box_(star_cluster) subject Category:Open_clusters.
- Jewel_Box_(star_cluster) type CaldwellObjects.
- Jewel_Box_(star_cluster) type NGCObjects.
- Jewel_Box_(star_cluster) type Object100002684.
- Jewel_Box_(star_cluster) type PhysicalEntity100001930.
- Jewel_Box_(star_cluster) comment "The Jewel Box, Kappa Crucis Cluster, NGC 4755, is an open cluster in the constellation Crux, and was originally discovered by Nicolas Louis de Lacaille during 1751–1752.".
- Jewel_Box_(star_cluster) label "El joyero".
- Jewel_Box_(star_cluster) label "Herschels Schmuckkästchen".
- Jewel_Box_(star_cluster) label "Jewel Box (star cluster)".
- Jewel_Box_(star_cluster) label "NGC 4755".
- Jewel_Box_(star_cluster) label "NGC 4755".
- Jewel_Box_(star_cluster) label "NGC 4755".
- Jewel_Box_(star_cluster) label "NGC 4755".
- Jewel_Box_(star_cluster) label "NGC 4755".
- Jewel_Box_(star_cluster) label "NGC 4755".
- Jewel_Box_(star_cluster) label "NGC 4755".
- Jewel_Box_(star_cluster) label "珠宝盒星团".
- Jewel_Box_(star_cluster) sameAs Herschels_Schmuckkästchen.
- Jewel_Box_(star_cluster) sameAs El_joyero.
- Jewel_Box_(star_cluster) sameAs NGC_4755.
- Jewel_Box_(star_cluster) sameAs NGC_4755.
- Jewel_Box_(star_cluster) sameAs NGC_4755.
- Jewel_Box_(star_cluster) sameAs 보석상자_성단.
- Jewel_Box_(star_cluster) sameAs NGC_4755.
- Jewel_Box_(star_cluster) sameAs NGC_4755.
- Jewel_Box_(star_cluster) sameAs NGC_4755.
- Jewel_Box_(star_cluster) sameAs m.03rk2h.
- Jewel_Box_(star_cluster) sameAs Q725477.
- Jewel_Box_(star_cluster) sameAs Q725477.
- Jewel_Box_(star_cluster) sameAs Jewel_Box_(star_cluster).
- Jewel_Box_(star_cluster) wasDerivedFrom Jewel_Box_(star_cluster)?oldid=606313520.
- Jewel_Box_(star_cluster) depiction A_Snapshot_of_the_Jewel_Box_cluster_with_the_ESO_VLT.jpg.
- Jewel_Box_(star_cluster) isPrimaryTopicOf Jewel_Box_(star_cluster).
