Deep sky · Open cluster in Crux · NGC 4755
Open cluster
Jewel Box
The Jewel Box, beside the Southern Cross — blue-white stars with one striking red supergiant among them.
- Type
- Open cluster
- Designations
- NGC 4755
- Constellation
- Crux
- Apparent magnitude
- 4.2
- Apparent size
- 10′
- Position (J2000)
- RA 12h 54m · Dec −60° 22′
History
John Herschel, charting the southern sky from the Cape in the 1830s, called it “a casket of variously coloured precious stones”.
Look for
Find it just next to Mimosa.