Collinder 21

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.0 0.46 0.12 0.0 1.0
C3
N_50
r_50
CD 23 9.4
Summary

Collinder 21 is a sparse, loose object of very low C3 quality. It is located at a relatively close distance from the Sun, well below the mid-plane. It is rarely studied in the literature, with no articles listed in the last 13 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
Kharchenko et al. (2012) 27.54 27.115 – -2.3 -3.9 –
           
UCC 27.604 27.107 0.863 -3.805 -8.366 -29.036
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

Collinder 21 UCC

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Fundamental parameters

Reference Values
Kharchenko et al. (2012) e_bv=0.2, distance=1400, log_age=9.393

Search coordinates in Bayestar19

Cluster region map