Sco OB4

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C3
N_50
r_50
CB 16 6.5
Summary

Sco OB4 is a sparse, very loose object of low C3 quality. It is located at a very large distance from the Sun, well above the mid-plane. It is poorly studied in the literature, with no articles listed in the last 17 years.

Warning: contains less than 25 stars with P>0.5 estimated.

Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicates that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Piskunov et al. (2007) 258.137 -33.373
Piskunov et al. (2008) 258.137 -33.373
UCC 258.107 -33.373 0.059 -4.213 -3.425 -131.82
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

Sco OB4 UCC

Explore data in Colab

Fundamental parameters

Reference Values
Piskunov et al. (2007) E(B-V)=0.2, Dist=1100, logt=6.82, logM=5.021
Piskunov et al. (2008) E(B-V)=0.2, Dist=1100, logt=6.82, logM=5.512, logMA=5.178

Search coordinates in Bayestar19

Cluster region