HXHWL 34
0.38
UTI
0.52
CN
0.44
Cdens
0.75
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
53
Core radius and density
1.1 [pc], 2.2 [pc-2]
- CN 0.52 Moderately populated
- Cdens 0.44 Loose
- CC3 0.75 High quality
- Clit 0.1 Rarely studied
- Cdup 1.0 Unique
Overview
HXHWL 34 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is rarely studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 207.271 | -60.812 | 0.778 | -7.244 | -2.223 | -11.705 |
| Wei et al. | 2025 | 207.276 | -60.767 | 0.768 | -7.241 | -2.324 | â |
| Hunt & Reffert | 2024 | 207.232 | -60.813 | 0.773 | -7.265 | -2.221 | -8.026 |
| Cavallo et al. | 2024 | 207.249 | -60.817 | 0.778 | â | â | â |
| Hunt & Reffert | 2023 | 207.232 | -60.813 | 0.773 | -7.265 | -2.221 | -8.026 |
| He et al. | 2021 | 207.215 | -60.824 | 0.75 | -7.2 | -2.26 | 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 | 1.23 | 1.01 | 0.935 | 155 | 0.216 | 208 | 0.34 | â |
| Wei et al. | 2025 | 2.51 | 1.23 | â | 63 | 0.500 | 210 | 0.34 | â |
| Hunt & Reffert | 2024 | 1.23 | 0.65 | 0.93 | 263 | â | 206(1) | â | â |
| Cavallo et al. | 2024 | 1.17 | 1.10 | â | 155 | -0.080 | â | â | â |
| Hunt & Reffert | 2023 | 1.23 | 0.65 | 0.94 | 263 | â | â | â | â |
| He et al. | 2021 | 1.20 | 1.01 | â | 95 | 0.216 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
MOCA


Palma et al. (2025)
Classified as optical pair P537, along with Theia_1873.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).