Open Cluster NGC 6231

Physical Properties

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
DesignationNGC 6231
TypeOCL (I3p)
Right Ascension (J2000.0)16h 54m 09.8s
Declination (J2000.0)-41° 49' 30"
Diameter14 arcmin
Photographic (blue) magnitude2.8 mag
Visual magnitude2.6 mag
Metric Distance1.250 kpc
Dreyer DescriptionCl, B, cL, pRi, st 10…13
Identification, Remarksh 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 6 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
02:52 | 1.3°
always
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, Latitude 46.7996°, Longitude 8.23225°, Horizon height 5°, Date 2025-04-14. [149, 160]

Objects Within a Radius of 15°

References