Jewel Box, Kappa Crucis Cluster (NGC 4755)

Crux
Crux: Constellation Southern Cross with Coalsack and Jewel Box (NGC 4755); Canon EF 85 mm f/1.8 USM at f/4.0; Canon EOS 20Da; Astro-Physics 1200GTO; 38x5 min @ 800 ASA; Namibia, Tivoli Southern Sky Guest Farm, 1360 m AMSL; © 4. 6. 2011 Manuel Jung [45]

Physical Properties

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Name RA Dec Type vMag Dim MD Dreyer Description Identification, Remarks
NGC 4755 12 53 39.0 -60 21 42 OCL (I3r) 4.2 10 1.976 Cl, vL, st vB (κ Crucis) h 3435; GC 3275; OCL 892; ESO 131-SC16; Jewel Box, Kappa Cru cluster
NGC 4852 13 00 09.0 -59 36 48 OCL (II2p) 8.9 12 1.330 Cl, L, pRi, iR, st 10 h 3449; GC 3335; OCL 894; ESO 131-SC17

Finder Chart

The open cluster NGC 4755 is located in the constellation Crux. About 1° northeast of it is the cluster NGC 4852 and between these two is the IAU constellation boundary to the constellation Centaurus. Both clusters are not visible from Europe. On 3 April NGC 4755 is in opposition with the Sun and is therefore highest in the sky at local midnight.

Finder Chart Jewel Box, Kappa Crucis Cluster (NGC 4755)
Jewel Box, Kappa Crucis Cluster (NGC 4755) in constellation Centaurus. Charts created using SkySafari 6 Pro and STScI Digitized Sky Survey. Limiting magnitudes: Constellation chart ~6.5 mag, DSS2 close-ups ~20 mag. [149, 160]

Objects Within a Radius of 20°

References