XDOCC 01
(XDOCC 1)
0.44
UTI
0.41
CN
0.57
Cdens
0.5
CC3
0.35
Clit
1.0
Cdup
Stellar density (N50/rad)
2.9 [N/pc2]
- CN 0.41 Poorly populated
- Cdens 0.57 Moderately dense
- CC3 0.5 Intermediate quality
- Clit 0.35 Poorly studied
- Cdup 1.0 Unique
Overview
XDOCC 01 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a metal-rich, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 20.119 | 58.312 | 1.253 | -1.689 | -0.429 | -27.211 |
| Liu et al. | 2025 | 20.05 | 58.34 | 1.25 | -1.7 | -0.47 | -25.5 |
| Hunt & Reffert | 2024 | 20.053 | 58.335 | 1.247 | -1.703 | -0.474 | -25.501 |
| Cavallo et al. | 2024 | 20.07 | 58.251 | 1.245 | â | â | â |
| Hunt & Reffert | 2023 | 20.053 | 58.335 | 1.247 | -1.703 | -0.474 | -25.501 |
| Jaehnig et al. | 2021 | 19.898 | 58.353 | 1.26 | -1.683 | -0.343 | â |
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 | 0.905 | 0.735 | 0.81 | 225 | 0.520 | 152 | 0.38 | â |
| Liu et al. | 2025 | 1.12 | 0.30 | â | 339 | â | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 92(1) | â | â |
| Cavallo et al. | 2024 | 1.01 | 0.97 | â | 100 | 0.640 | â | â | â |
| Hunt & Reffert | 2023 | 0.77 | 0.78 | 0.81 | 225 | â | â | â | â |
| Piatti et al. | 2023 | â | â | â | 135 | 0.400 | 213 | 0.38 | â |
| Jaehnig et al. | 2021 | 0.80(1) | 0.69 | â | 337 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
MOCA


Liu et al. (2025)
Classified as hyperbolic encounter pair 400 along with HSC_1005, and of multiple system 50 along with HSC_1005 and Theia_872.
Cavallo et al. (2024)
Gold sample.