C1331 622
(MWSC 2137)
0.23
UTI
0.0
CN
0.02
Cdens
0.38
CC3
0.38
Clit
1.0
Cdup
Stellar density (N50/rad)
0.1 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.02 Very loose
- CC3 0.38 Low quality
- Clit 0.38 Poorly studied
- Cdup 1.0 Unique
Overview
C1331 622 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large* distance, near the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.
(*): The parallax distance estimate (~5.71 kpc) differs significantly from the median photometric distance (~1.08 kpc).
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 | 203.611 | -62.353 | 0.175 | -6.959 | -1.269 | -22.097 |
| Just et al. | 2023 | 203.644 | -62.414 | â | â | â | â |
| Kharchenko et al. | 2016 | 203.644 | -62.414 | â | â | â | â |
| Dias et al. | 2014 | 203.55 | -62.417 | â | -1.59 | -4.43 | -35.0 |
| Kharchenko et al. | 2013 | 203.655 | -62.417 | â | -7.61 | 0.93 | â |
| Morales et al. | 2013 | 203.55 | -62.417 | â | â | â | â |
| Bukowiecki et al. | 2011 | 203.642 | -62.458 | â | â | â | â |
| Dias et al. | 2002 | 203.55 | -62.417 | â | -1.59 | -4.43 | -35.0 |
đĄ Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 1.08 | 0.84 | â | 1778 | â | 326 | â | â |
| Just et al. | 2023 | â | â | â | 1778 | â | 35 | â | â |
| Kharchenko et al. | 2016 | 1.08 | 0.84 | â | 1778 | â | â | â | â |
| Kharchenko et al. | 2013 | 1.08 | 0.84 | â | 1778 | â | â | â | â |
| Morales et al. | 2013 | 1.09 | â | â | 63 | â | â | â | â |
| Bukowiecki et al. | 2012 | â | â | â | â | â | 617 | â | â |
| Bukowiecki et al. | 2011 | 1.28(1) | 1.21 | â | 63 | â | â | â | â |
| Dias et al. | 2002 | 0.82 | 0.71 | â | â | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
MOCA

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.