Collinder 345
0.12
UTI
0.0
CN
0.07
Cdens
0.38
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
18
Core radius and density
1.6 [pc], 0.4 [pc-2]
- CN 0.0 Sparse
- Cdens 0.07 Very loose
- CC3 0.38 Low quality
- Clit 0.06 Rarely studied
- Cdup 1.0 Unique
Overview
Collinder 345 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane. No fundamental parameter values are available for this object. It is rarely studied in the literature, with no articles listed in the last 8 years.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 266.156 | -33.864 | 0.352 | 0.574 | -1.354 | -49.619 |
| Dias et al. | 2018 | â | â | â | -0.53 | -3.26 | â |
| Sampedro et al. | 2017 | 266.146 | -33.867 | â | 0.29 | -1.02 | â |
| Dias et al. | 2014 | 266.146 | -33.867 | â | 0.6 | -1.38 | â |
| Lynga | 1987 | 266.146 | -33.746 | â | â | â | â |
đĄ Note: The UCC values are estimated from its identified members.
MOCA

Dias et al. (2022)
Likely not a real open cluster.