Open Cluster NGC 6231

Physical Properties

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Designation NGC 6231
Type OCL (I3p)
Right Ascension (J2000.0) 16h 54m 09.8s
Declination (J2000.0) -41° 49' 30"
Diameter 14 arcmin
Photographic (blue) magnitude 2.8 mag
Visual magnitude 2.6 mag
Metric Distance 1.250 kpc
Dreyer Description Cl, B, cL, pRi, st 10…13
Identification, Remarks h 3652; GC 4245; OCL 997; ESO 332-SC6

Finder Chart

The open cluster NGC 6231 is located in the constellation Scorpius, just half a degree above the two stars ζ1 and ζ2 Scorpii. Unfortunately it is not not visible from central Europe. On 4 June it in opposition with the Sun and is therefore highest in the sky at local midnight.

Scorpius / Open Cluster NGC 6231
Finder Chart Open Cluster NGC 6231
never | 5°
04:45 | 1.4°
immer | 5°
Charts created using SkySafari 6 Pro and STScI Digitized Sky Survey. Limiting magnitudes: Constellation chart ~6.5 mag, DSS2 close-ups ~20 mag. Times are shown for timezone UTC. Date 2025-03-16 [149, 160]

Objects Within a Radius of 15°

References